From patchwork Fri Apr 16 07:34:37 2010 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yanmin Zhang X-Patchwork-Id: 93070 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by demeter.kernel.org (8.14.3/8.14.3) with ESMTP id o3G7aDo0008448 for ; Fri, 16 Apr 2010 07:36:14 GMT Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756940Ab0DPHf0 (ORCPT ); Fri, 16 Apr 2010 03:35:26 -0400 Received: from mga06.intel.com ([134.134.136.21]:51731 "EHLO orsmga101.jf.intel.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1756876Ab0DPHfT (ORCPT ); Fri, 16 Apr 2010 03:35:19 -0400 Received: from orsmga001.jf.intel.com ([10.7.209.18]) by orsmga101.jf.intel.com with ESMTP; 16 Apr 2010 00:34:23 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.52,218,1270450800"; d="scan'208";a="613669397" Received: from unknown (HELO [10.239.13.36]) ([10.239.13.36]) by orsmga001.jf.intel.com with ESMTP; 16 Apr 2010 00:35:08 -0700 Subject: [PATCH V4 2/2] perf & kvm: Enhance perf to collect KVM guest os statistics from host side From: "Zhang, Yanmin" To: Avi Kivity Cc: Ingo Molnar , Peter Zijlstra , Sheng Yang , Avi Kivity , Marcelo Tosatti , oerg Roedel , kvm@vger.kernel.org, Jes Sorensen , linux-kernel@vger.kernel.org, Zachary Amsden , Gleb Natapov , tim.c.chen@intel.com, zhiteng.huang@intel.com, Arnaldo Carvalho de Melo Date: Fri, 16 Apr 2010 15:34:37 +0800 Message-Id: <1271403277.2078.510.camel@ymzhang.sh.intel.com> Mime-Version: 1.0 X-Mailer: Evolution 2.28.0 (2.28.0-2.fc12) Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org X-Greylist: IP, sender and recipient auto-whitelisted, not delayed by milter-greylist-4.2.3 (demeter.kernel.org [140.211.167.41]); Fri, 16 Apr 2010 07:36:15 +0000 (UTC) diff -Nraup linux-2.6_tip0413/tools/perf/builtin-annotate.c linux-2.6_tip0413_perfkvm/tools/perf/builtin-annotate.c --- linux-2.6_tip0413/tools/perf/builtin-annotate.c 2010-04-14 11:11:58.474229259 +0800 +++ linux-2.6_tip0413_perfkvm/tools/perf/builtin-annotate.c 2010-04-14 11:13:17.269859901 +0800 @@ -571,7 +571,7 @@ static int __cmd_annotate(void) perf_session__fprintf(session, stdout); if (verbose > 2) - dsos__fprintf(stdout); + dsos__fprintf(&session->kerninfo_root, stdout); perf_session__collapse_resort(&session->hists); perf_session__output_resort(&session->hists, session->event_total[0]); diff -Nraup linux-2.6_tip0413/tools/perf/builtin-buildid-list.c linux-2.6_tip0413_perfkvm/tools/perf/builtin-buildid-list.c --- linux-2.6_tip0413/tools/perf/builtin-buildid-list.c 2010-04-14 11:11:58.462227060 +0800 +++ linux-2.6_tip0413_perfkvm/tools/perf/builtin-buildid-list.c 2010-04-14 11:13:17.269859901 +0800 @@ -46,7 +46,7 @@ static int __cmd_buildid_list(void) if (with_hits) perf_session__process_events(session, &build_id__mark_dso_hit_ops); - dsos__fprintf_buildid(stdout, with_hits); + dsos__fprintf_buildid(&session->kerninfo_root, stdout, with_hits); perf_session__delete(session); return err; diff -Nraup linux-2.6_tip0413/tools/perf/builtin-diff.c linux-2.6_tip0413_perfkvm/tools/perf/builtin-diff.c --- linux-2.6_tip0413/tools/perf/builtin-diff.c 2010-04-14 11:11:58.426247688 +0800 +++ linux-2.6_tip0413_perfkvm/tools/perf/builtin-diff.c 2010-04-14 11:35:43.245364332 +0800 @@ -33,7 +33,7 @@ static int perf_session__add_hist_entry( return -ENOMEM; if (hit) - he->count += count; + __perf_session__add_count(he, al, count); return 0; } @@ -225,6 +225,10 @@ int cmd_diff(int argc, const char **argv input_new = argv[1]; } else input_new = argv[0]; + } else if (symbol_conf.default_guest_vmlinux_name || + symbol_conf.default_guest_kallsyms) { + input_old = "perf.data.host"; + input_new = "perf.data.guest"; } symbol_conf.exclude_other = false; diff -Nraup linux-2.6_tip0413/tools/perf/builtin.h linux-2.6_tip0413_perfkvm/tools/perf/builtin.h --- linux-2.6_tip0413/tools/perf/builtin.h 2010-04-14 11:11:58.234222967 +0800 +++ linux-2.6_tip0413_perfkvm/tools/perf/builtin.h 2010-04-14 11:13:17.313858518 +0800 @@ -32,5 +32,6 @@ extern int cmd_version(int argc, const c extern int cmd_probe(int argc, const char **argv, const char *prefix); extern int cmd_kmem(int argc, const char **argv, const char *prefix); extern int cmd_lock(int argc, const char **argv, const char *prefix); +extern int cmd_kvm(int argc, const char **argv, const char *prefix); #endif diff -Nraup linux-2.6_tip0413/tools/perf/builtin-kmem.c linux-2.6_tip0413_perfkvm/tools/perf/builtin-kmem.c --- linux-2.6_tip0413/tools/perf/builtin-kmem.c 2010-04-14 11:11:58.806260439 +0800 +++ linux-2.6_tip0413_perfkvm/tools/perf/builtin-kmem.c 2010-04-15 17:53:49.998951264 +0800 @@ -351,6 +351,7 @@ static void __print_result(struct rb_roo int n_lines, int is_caller) { struct rb_node *next; + struct kernel_info *kerninfo; printf("%.102s\n", graph_dotted_line); printf(" %-34s |", is_caller ? "Callsite": "Alloc Ptr"); @@ -359,10 +360,16 @@ static void __print_result(struct rb_roo next = rb_first(root); + kerninfo = kerninfo__findhost(&session->kerninfo_root); + if (!kerninfo) { + pr_err("__print_result: couldn't find kernel information\n"); + return; + } while (next && n_lines--) { struct alloc_stat *data = rb_entry(next, struct alloc_stat, node); struct symbol *sym = NULL; + struct map_groups *kmaps = &kerninfo->kmaps; struct map *map; char buf[BUFSIZ]; u64 addr; @@ -370,8 +377,8 @@ static void __print_result(struct rb_roo if (is_caller) { addr = data->call_site; if (!raw_ip) - sym = map_groups__find_function(&session->kmaps, - addr, &map, NULL); + sym = map_groups__find_function(kmaps, addr, + &map, NULL); } else addr = data->ptr; diff -Nraup linux-2.6_tip0413/tools/perf/builtin-kvm.c linux-2.6_tip0413_perfkvm/tools/perf/builtin-kvm.c --- linux-2.6_tip0413/tools/perf/builtin-kvm.c 1970-01-01 08:00:00.000000000 +0800 +++ linux-2.6_tip0413_perfkvm/tools/perf/builtin-kvm.c 2010-04-16 11:28:37.364630979 +0800 @@ -0,0 +1,145 @@ +#include "builtin.h" +#include "perf.h" + +#include "util/util.h" +#include "util/cache.h" +#include "util/symbol.h" +#include "util/thread.h" +#include "util/header.h" +#include "util/session.h" + +#include "util/parse-options.h" +#include "util/trace-event.h" + +#include "util/debug.h" + +#include + +#include +#include +#include + +static char *file_name; +static char name_buffer[256]; + +int perf_host = 1; +int perf_guest; + +static const char * const kvm_usage[] = { + "perf kvm [] {top|record|report|diff|buildid-list}", + NULL +}; + +static const struct option kvm_options[] = { + OPT_STRING('i', "input", &file_name, "file", + "Input file name"), + OPT_STRING('o', "output", &file_name, "file", + "Output file name"), + OPT_BOOLEAN(0, "guest", &perf_guest, + "Collect guest os data"), + OPT_BOOLEAN(0, "host", &perf_host, + "Collect guest os data"), + OPT_STRING(0, "guestmount", &symbol_conf.guestmount, "directory", + "guest mount directory under which every guest os" + " instance has a subdir"), + OPT_STRING(0, "guestvmlinux", &symbol_conf.default_guest_vmlinux_name, + "file", "file saving guest os vmlinux"), + OPT_STRING(0, "guestkallsyms", &symbol_conf.default_guest_kallsyms, + "file", "file saving guest os /proc/kallsyms"), + OPT_STRING(0, "guestmodules", &symbol_conf.default_guest_modules, + "file", "file saving guest os /proc/modules"), + OPT_END() +}; + +static int __cmd_record(int argc, const char **argv) +{ + int rec_argc, i = 0, j; + const char **rec_argv; + + rec_argc = argc + 2; + rec_argv = calloc(rec_argc + 1, sizeof(char *)); + rec_argv[i++] = strdup("record"); + rec_argv[i++] = strdup("-o"); + rec_argv[i++] = strdup(file_name); + for (j = 1; j < argc; j++, i++) + rec_argv[i] = argv[j]; + + BUG_ON(i != rec_argc); + + return cmd_record(i, rec_argv, NULL); +} + +static int __cmd_report(int argc, const char **argv) +{ + int rec_argc, i = 0, j; + const char **rec_argv; + + rec_argc = argc + 2; + rec_argv = calloc(rec_argc + 1, sizeof(char *)); + rec_argv[i++] = strdup("report"); + rec_argv[i++] = strdup("-i"); + rec_argv[i++] = strdup(file_name); + for (j = 1; j < argc; j++, i++) + rec_argv[i] = argv[j]; + + BUG_ON(i != rec_argc); + + return cmd_report(i, rec_argv, NULL); +} + +static int __cmd_buildid_list(int argc, const char **argv) +{ + int rec_argc, i = 0, j; + const char **rec_argv; + + rec_argc = argc + 2; + rec_argv = calloc(rec_argc + 1, sizeof(char *)); + rec_argv[i++] = strdup("buildid-list"); + rec_argv[i++] = strdup("-i"); + rec_argv[i++] = strdup(file_name); + for (j = 1; j < argc; j++, i++) + rec_argv[i] = argv[j]; + + BUG_ON(i != rec_argc); + + return cmd_buildid_list(i, rec_argv, NULL); +} + +int cmd_kvm(int argc, const char **argv, const char *prefix __used) +{ + perf_host = perf_guest = 0; + + argc = parse_options(argc, argv, kvm_options, kvm_usage, + PARSE_OPT_STOP_AT_NON_OPTION); + if (!argc) + usage_with_options(kvm_usage, kvm_options); + + if (!perf_host) + perf_guest = 1; + + if (!file_name) { + if (perf_host && !perf_guest) + sprintf(name_buffer, "perf.data.host"); + else if (!perf_host && perf_guest) + sprintf(name_buffer, "perf.data.guest"); + else + sprintf(name_buffer, "perf.data.kvm"); + file_name = name_buffer; + } + + if (!strncmp(argv[0], "rec", 3)) + return __cmd_record(argc, argv); + else if (!strncmp(argv[0], "rep", 3)) + return __cmd_report(argc, argv); + else if (!strncmp(argv[0], "diff", 4)) + return cmd_diff(argc, argv, NULL); + else if (!strncmp(argv[0], "top", 3)) + return cmd_top(argc, argv, NULL); + else if (!strncmp(argv[0], "buildid-list", 12)) + return __cmd_buildid_list(argc, argv); + else + usage_with_options(kvm_usage, kvm_options); + + return 0; +} + diff -Nraup linux-2.6_tip0413/tools/perf/builtin-record.c linux-2.6_tip0413_perfkvm/tools/perf/builtin-record.c --- linux-2.6_tip0413/tools/perf/builtin-record.c 2010-04-14 11:11:58.806260439 +0800 +++ linux-2.6_tip0413_perfkvm/tools/perf/builtin-record.c 2010-04-14 14:11:09.625252460 +0800 @@ -426,6 +426,52 @@ static void atexit_header(void) perf_header__write(&session->header, output, true); } +static void event__synthesize_guest_os(struct kernel_info *kerninfo, + void *data __attribute__((unused))) +{ + int err; + char *guest_kallsyms; + char path[PATH_MAX]; + + if (is_host_kernel(kerninfo)) + return; + + /* + *As for guest kernel when processing subcommand record&report, + *we arrange module mmap prior to guest kernel mmap and trigger + *a preload dso because default guest module symbols are loaded + *from guest kallsyms instead of /lib/modules/XXX/XXX. This + *method is used to avoid symbol missing when the first addr is + *in module instead of in guest kernel. + */ + err = event__synthesize_modules(process_synthesized_event, + session, + kerninfo); + if (err < 0) + pr_err("Couldn't record guest kernel [%d]'s reference" + " relocation symbol.\n", kerninfo->pid); + + if (is_default_guest(kerninfo)) + guest_kallsyms = (char *) symbol_conf.default_guest_kallsyms; + else { + sprintf(path, "%s/proc/kallsyms", kerninfo->root_dir); + guest_kallsyms = path; + } + + /* + * We use _stext for guest kernel because guest kernel's /proc/kallsyms + * have no _text sometimes. + */ + err = event__synthesize_kernel_mmap(process_synthesized_event, + session, kerninfo, "_text"); + if (err < 0) + err = event__synthesize_kernel_mmap(process_synthesized_event, + session, kerninfo, "_stext"); + if (err < 0) + pr_err("Couldn't record guest kernel [%d]'s reference" + " relocation symbol.\n", kerninfo->pid); +} + static int __cmd_record(int argc, const char **argv) { int i, counter; @@ -437,6 +483,7 @@ static int __cmd_record(int argc, const int child_ready_pipe[2], go_pipe[2]; const bool forks = argc > 0; char buf; + struct kernel_info *kerninfo; page_size = sysconf(_SC_PAGE_SIZE); @@ -572,21 +619,31 @@ static int __cmd_record(int argc, const post_processing_offset = lseek(output, 0, SEEK_CUR); + kerninfo = kerninfo__findhost(&session->kerninfo_root); + if (!kerninfo) { + pr_err("Couldn't find native kernel information.\n"); + return -1; + } + err = event__synthesize_kernel_mmap(process_synthesized_event, - session, "_text"); + session, kerninfo, "_text"); if (err < 0) err = event__synthesize_kernel_mmap(process_synthesized_event, - session, "_stext"); + session, kerninfo, "_stext"); if (err < 0) { pr_err("Couldn't record kernel reference relocation symbol.\n"); return err; } - err = event__synthesize_modules(process_synthesized_event, session); + err = event__synthesize_modules(process_synthesized_event, + session, kerninfo); if (err < 0) { pr_err("Couldn't record kernel reference relocation symbol.\n"); return err; } + if (perf_guest) + kerninfo__process_allkernels(&session->kerninfo_root, + event__synthesize_guest_os, session); if (!system_wide && profile_cpu == -1) event__synthesize_thread(target_tid, process_synthesized_event, diff -Nraup linux-2.6_tip0413/tools/perf/builtin-report.c linux-2.6_tip0413_perfkvm/tools/perf/builtin-report.c --- linux-2.6_tip0413/tools/perf/builtin-report.c 2010-04-14 11:11:58.462227060 +0800 +++ linux-2.6_tip0413_perfkvm/tools/perf/builtin-report.c 2010-04-14 11:13:17.313858518 +0800 @@ -108,7 +108,7 @@ static int perf_session__add_hist_entry( return -ENOMEM; if (hit) - he->count += data->period; + __perf_session__add_count(he, al, data->period); if (symbol_conf.use_callchain) { if (!hit) @@ -300,7 +300,7 @@ static int __cmd_report(void) perf_session__fprintf(session, stdout); if (verbose > 2) - dsos__fprintf(stdout); + dsos__fprintf(&session->kerninfo_root, stdout); next = rb_first(&session->stats_by_id); while (next) { @@ -437,6 +437,8 @@ static const struct option options[] = { "sort by key(s): pid, comm, dso, symbol, parent"), OPT_BOOLEAN('P', "full-paths", &symbol_conf.full_paths, "Don't shorten the pathnames taking into account the cwd"), + OPT_BOOLEAN(0, "showcpuutilization", &symbol_conf.show_cpu_utilization, + "Show sample percentage for different cpu modes"), OPT_STRING('p', "parent", &parent_pattern, "regex", "regex filter to identify parent, see: '--sort parent'"), OPT_BOOLEAN('x', "exclude-other", &symbol_conf.exclude_other, diff -Nraup linux-2.6_tip0413/tools/perf/builtin-top.c linux-2.6_tip0413_perfkvm/tools/perf/builtin-top.c --- linux-2.6_tip0413/tools/perf/builtin-top.c 2010-04-14 11:11:58.458238567 +0800 +++ linux-2.6_tip0413_perfkvm/tools/perf/builtin-top.c 2010-04-16 15:56:59.695361174 +0800 @@ -420,8 +420,9 @@ static double sym_weight(const struct sy } static long samples; -static long userspace_samples; +static long kernel_samples, us_samples; static long exact_samples; +static long guest_us_samples, guest_kernel_samples; static const char CONSOLE_CLEAR[] = ""; static void __list_insert_active_sym(struct sym_entry *syme) @@ -461,7 +462,10 @@ static void print_sym_table(void) int printed = 0, j; int counter, snap = !display_weighted ? sym_counter : 0; float samples_per_sec = samples/delay_secs; - float ksamples_per_sec = (samples-userspace_samples)/delay_secs; + float ksamples_per_sec = kernel_samples/delay_secs; + float us_samples_per_sec = (us_samples)/delay_secs; + float guest_kernel_samples_per_sec = (guest_kernel_samples)/delay_secs; + float guest_us_samples_per_sec = (guest_us_samples)/delay_secs; float esamples_percent = (100.0*exact_samples)/samples; float sum_ksamples = 0.0; struct sym_entry *syme, *n; @@ -470,7 +474,8 @@ static void print_sym_table(void) int sym_width = 0, dso_width = 0, dso_short_width = 0; const int win_width = winsize.ws_col - 1; - samples = userspace_samples = exact_samples = 0; + samples = us_samples = kernel_samples = exact_samples = 0; + guest_kernel_samples = guest_us_samples = 0; /* Sort the active symbols */ pthread_mutex_lock(&active_symbols_lock); @@ -501,10 +506,30 @@ static void print_sym_table(void) puts(CONSOLE_CLEAR); printf("%-*.*s\n", win_width, win_width, graph_dotted_line); - printf( " PerfTop:%8.0f irqs/sec kernel:%4.1f%% exact: %4.1f%% [", - samples_per_sec, - 100.0 - (100.0*((samples_per_sec-ksamples_per_sec)/samples_per_sec)), - esamples_percent); + if (!perf_guest) { + printf(" PerfTop:%8.0f irqs/sec kernel:%4.1f%%" + " exact: %4.1f%% [", + samples_per_sec, + 100.0 - (100.0 * ((samples_per_sec - ksamples_per_sec) / + samples_per_sec)), + esamples_percent); + } else { + printf(" PerfTop:%8.0f irqs/sec kernel:%4.1f%% us:%4.1f%%" + " guest kernel:%4.1f%% guest us:%4.1f%%" + " exact: %4.1f%% [", + samples_per_sec, + 100.0 - (100.0 * ((samples_per_sec-ksamples_per_sec) / + samples_per_sec)), + 100.0 - (100.0 * ((samples_per_sec-us_samples_per_sec) / + samples_per_sec)), + 100.0 - (100.0 * ((samples_per_sec - + guest_kernel_samples_per_sec) / + samples_per_sec)), + 100.0 - (100.0 * ((samples_per_sec - + guest_us_samples_per_sec) / + samples_per_sec)), + esamples_percent); + } if (nr_counters == 1 || !display_weighted) { printf("%Ld", (u64)attrs[0].sample_period); @@ -597,7 +622,6 @@ static void print_sym_table(void) syme = rb_entry(nd, struct sym_entry, rb_node); sym = sym_entry__symbol(syme); - if (++printed > print_entries || (int)syme->snap_count < count_filter) continue; @@ -761,7 +785,7 @@ static int key_mapped(int c) return 0; } -static void handle_keypress(int c) +static void handle_keypress(struct perf_session *session, int c) { if (!key_mapped(c)) { struct pollfd stdin_poll = { .fd = 0, .events = POLLIN }; @@ -830,7 +854,7 @@ static void handle_keypress(int c) case 'Q': printf("exiting.\n"); if (dump_symtab) - dsos__fprintf(stderr); + dsos__fprintf(&session->kerninfo_root, stderr); exit(0); case 's': prompt_symbol(&sym_filter_entry, "Enter details symbol"); @@ -866,6 +890,7 @@ static void *display_thread(void *arg __ struct pollfd stdin_poll = { .fd = 0, .events = POLLIN }; struct termios tc, save; int delay_msecs, c; + struct perf_session *session = (struct perf_session *) arg; tcgetattr(0, &save); tc = save; @@ -886,7 +911,7 @@ repeat: c = getc(stdin); tcsetattr(0, TCSAFLUSH, &save); - handle_keypress(c); + handle_keypress(session, c); goto repeat; return NULL; @@ -957,24 +982,46 @@ static void event__process_sample(const u64 ip = self->ip.ip; struct sym_entry *syme; struct addr_location al; + struct kernel_info *kerninfo; u8 origin = self->header.misc & PERF_RECORD_MISC_CPUMODE_MASK; ++samples; switch (origin) { case PERF_RECORD_MISC_USER: - ++userspace_samples; + ++us_samples; if (hide_user_symbols) return; + kerninfo = kerninfo__findhost(&session->kerninfo_root); break; case PERF_RECORD_MISC_KERNEL: + ++kernel_samples; if (hide_kernel_symbols) return; + kerninfo = kerninfo__findhost(&session->kerninfo_root); break; + case PERF_RECORD_MISC_GUEST_KERNEL: + ++guest_kernel_samples; + kerninfo = kerninfo__find(&session->kerninfo_root, + self->ip.pid); + break; + case PERF_RECORD_MISC_GUEST_USER: + ++guest_us_samples; + /* + * TODO: we don't process guest user from host side + * except simple counting. + */ + return; default: return; } + if (!kerninfo && perf_guest) { + pr_err("Can't find guest [%d]'s kernel information\n", + self->ip.pid); + return; + } + if (self->header.misc & PERF_RECORD_MISC_EXACT) exact_samples++; @@ -994,7 +1041,7 @@ static void event__process_sample(const * --hide-kernel-symbols, even if the user specifies an * invalid --vmlinux ;-) */ - if (al.map == session->vmlinux_maps[MAP__FUNCTION] && + if (al.map == kerninfo->vmlinux_maps[MAP__FUNCTION] && RB_EMPTY_ROOT(&al.map->dso->symbols[MAP__FUNCTION])) { pr_err("The %s file can't be used\n", symbol_conf.vmlinux_name); @@ -1261,7 +1308,7 @@ static int __cmd_top(void) perf_session__mmap_read(session); - if (pthread_create(&thread, NULL, display_thread, NULL)) { + if (pthread_create(&thread, NULL, display_thread, session)) { printf("Could not create display thread.\n"); exit(-1); } diff -Nraup linux-2.6_tip0413/tools/perf/command-list.txt linux-2.6_tip0413_perfkvm/tools/perf/command-list.txt --- linux-2.6_tip0413/tools/perf/command-list.txt 2010-04-14 11:11:58.414224251 +0800 +++ linux-2.6_tip0413_perfkvm/tools/perf/command-list.txt 2010-04-14 18:09:51.984032138 +0800 @@ -19,3 +19,4 @@ perf-trace mainporcelain common perf-probe mainporcelain common perf-kmem mainporcelain common perf-lock mainporcelain common +perf-kvm mainporcelain common diff -Nraup linux-2.6_tip0413/tools/perf/Documentation/perf-kvm.txt linux-2.6_tip0413_perfkvm/tools/perf/Documentation/perf-kvm.txt --- linux-2.6_tip0413/tools/perf/Documentation/perf-kvm.txt 1970-01-01 08:00:00.000000000 +0800 +++ linux-2.6_tip0413_perfkvm/tools/perf/Documentation/perf-kvm.txt 2010-04-16 11:30:26.451107100 +0800 @@ -0,0 +1,67 @@ +perf-kvm(1) +============== + +NAME +---- +perf-kvm - Tool to trace/measure kvm guest os + +SYNOPSIS +-------- +[verse] +'perf kvm' [--host] [--guest] [--guestmount= + [--guestkallsyms= --guestmodules= | --guestvmlinux=]] + {top|record|report|diff|buildid-list} +'perf kvm' [--host] [--guest] [--guestkallsyms= --guestmodules= + | --guestvmlinux=] {top|record|report|diff|buildid-list} + +DESCRIPTION +----------- +There are a couple of variants of perf kvm: + + 'perf kvm [options] top ' to generates and displays + a performance counter profile of guest os in realtime + of an arbitrary workload. + + 'perf kvm record ' to record the performance couinter profile + of an arbitrary workload and save it into a perf data file. If both + --host and --guest are input, the perf data file name is perf.data.kvm. + If there is no --host but --guest, the file name is perf.data.guest. + If there is no --guest but --host, the file name is perf.data.host. + + 'perf kvm report' to display the performance counter profile information + recorded via perf kvm record. + + 'perf kvm diff' to displays the performance difference amongst two perf.data + files captured via perf record. + + 'perf kvm buildid-list' to display the buildids found in a perf data file, + so that other tools can be used to fetch packages with matching symbol tables + for use by perf report. + +OPTIONS +------- +--host=:: + Collect host side perforamnce profile. +--guest=:: + Collect guest side perforamnce profile. +--guestmount=:: + Guest os root file system mount directory. Users mounts guest os + root directories under by a specific filesystem access method, + typically, sshfs. For example, start 2 guest os. The one's pid is 8888 + and the other's is 9999. + #mkdir ~/guestmount; cd ~/guestmount + #sshfs -o allow_other,direct_io -p 5551 localhost:/ 8888/ + #sshfs -o allow_other,direct_io -p 5552 localhost:/ 9999/ + #perf kvm --host --guest --guestmount=~/guestmount top +--guestkallsyms=:: + Guest os /proc/kallsyms file copy. 'perf' kvm' reads it to get guest + kernel symbols. Users copy it out from guest os. +--guestmodules=:: + Guest os /proc/modules file copy. 'perf' kvm' reads it to get guest + kernel module information. Users copy it out from guest os. +--guestvmlinux=:: + Guest os kernel vmlinux. + +SEE ALSO +-------- +linkperf:perf-top[1] perf-record[1] perf-report[1] perf-diff[1] perf-buildid-list[1] diff -Nraup linux-2.6_tip0413/tools/perf/Makefile linux-2.6_tip0413_perfkvm/tools/perf/Makefile --- linux-2.6_tip0413/tools/perf/Makefile 2010-04-14 11:11:58.802281816 +0800 +++ linux-2.6_tip0413_perfkvm/tools/perf/Makefile 2010-04-16 14:47:01.649542605 +0800 @@ -472,6 +472,7 @@ BUILTIN_OBJS += $(OUTPUT)builtin-trace.o BUILTIN_OBJS += $(OUTPUT)builtin-probe.o BUILTIN_OBJS += $(OUTPUT)builtin-kmem.o BUILTIN_OBJS += $(OUTPUT)builtin-lock.o +BUILTIN_OBJS += $(OUTPUT)builtin-kvm.o PERFLIBS = $(LIB_FILE) diff -Nraup linux-2.6_tip0413/tools/perf/perf.c linux-2.6_tip0413_perfkvm/tools/perf/perf.c --- linux-2.6_tip0413/tools/perf/perf.c 2010-04-14 11:11:58.478250552 +0800 +++ linux-2.6_tip0413_perfkvm/tools/perf/perf.c 2010-04-14 11:13:17.313858518 +0800 @@ -307,6 +307,7 @@ static void handle_internal_command(int { "probe", cmd_probe, 0 }, { "kmem", cmd_kmem, 0 }, { "lock", cmd_lock, 0 }, + { "kvm", cmd_kvm, 0 }, }; unsigned int i; static const char ext[] = STRIP_EXTENSION; diff -Nraup linux-2.6_tip0413/tools/perf/perf.h linux-2.6_tip0413_perfkvm/tools/perf/perf.h --- linux-2.6_tip0413/tools/perf/perf.h 2010-04-14 11:11:58.810277694 +0800 +++ linux-2.6_tip0413_perfkvm/tools/perf/perf.h 2010-04-14 11:13:17.313858518 +0800 @@ -131,4 +131,6 @@ struct ip_callchain { u64 ips[0]; }; +extern int perf_host, perf_guest; + #endif diff -Nraup linux-2.6_tip0413/tools/perf/util/build-id.c linux-2.6_tip0413_perfkvm/tools/perf/util/build-id.c --- linux-2.6_tip0413/tools/perf/util/build-id.c 2010-04-14 11:11:58.654213263 +0800 +++ linux-2.6_tip0413_perfkvm/tools/perf/util/build-id.c 2010-04-14 11:13:17.317861518 +0800 @@ -24,7 +24,7 @@ static int build_id__mark_dso_hit(event_ } thread__find_addr_map(thread, session, cpumode, MAP__FUNCTION, - event->ip.ip, &al); + event->ip.pid, event->ip.ip, &al); if (al.map != NULL) al.map->dso->hit = 1; diff -Nraup linux-2.6_tip0413/tools/perf/util/event.c linux-2.6_tip0413_perfkvm/tools/perf/util/event.c --- linux-2.6_tip0413/tools/perf/util/event.c 2010-04-14 11:11:58.662259868 +0800 +++ linux-2.6_tip0413_perfkvm/tools/perf/util/event.c 2010-04-16 15:50:08.477896519 +0800 @@ -112,7 +112,11 @@ static int event__synthesize_mmap_events event_t ev = { .header = { .type = PERF_RECORD_MMAP, - .misc = 0, /* Just like the kernel, see kernel/perf_event.c __perf_event_mmap */ + /* + * Just like the kernel, see __perf_event_mmap + * in kernel/perf_event.c + */ + .misc = PERF_RECORD_MISC_USER, }, }; int n; @@ -167,11 +171,23 @@ static int event__synthesize_mmap_events } int event__synthesize_modules(event__handler_t process, - struct perf_session *session) + struct perf_session *session, + struct kernel_info *kerninfo) { struct rb_node *nd; + struct map_groups *kmaps = &kerninfo->kmaps; + u16 misc; - for (nd = rb_first(&session->kmaps.maps[MAP__FUNCTION]); + /* + * kernel uses 0 for user space maps, see kernel/perf_event.c + * __perf_event_mmap + */ + if (is_host_kernel(kerninfo)) + misc = PERF_RECORD_MISC_KERNEL; + else + misc = PERF_RECORD_MISC_GUEST_KERNEL; + + for (nd = rb_first(&kmaps->maps[MAP__FUNCTION]); nd; nd = rb_next(nd)) { event_t ev; size_t size; @@ -182,12 +198,13 @@ int event__synthesize_modules(event__han size = ALIGN(pos->dso->long_name_len + 1, sizeof(u64)); memset(&ev, 0, sizeof(ev)); - ev.mmap.header.misc = 1; /* kernel uses 0 for user space maps, see kernel/perf_event.c __perf_event_mmap */ + ev.mmap.header.misc = misc; ev.mmap.header.type = PERF_RECORD_MMAP; ev.mmap.header.size = (sizeof(ev.mmap) - (sizeof(ev.mmap.filename) - size)); ev.mmap.start = pos->start; ev.mmap.len = pos->end - pos->start; + ev.mmap.pid = kerninfo->pid; memcpy(ev.mmap.filename, pos->dso->long_name, pos->dso->long_name_len + 1); @@ -250,13 +267,18 @@ static int find_symbol_cb(void *arg, con int event__synthesize_kernel_mmap(event__handler_t process, struct perf_session *session, + struct kernel_info *kerninfo, const char *symbol_name) { size_t size; + const char *filename, *mmap_name; + char path[PATH_MAX]; + char name_buff[PATH_MAX]; + struct map *map; + event_t ev = { .header = { .type = PERF_RECORD_MMAP, - .misc = 1, /* kernel uses 0 for user space maps, see kernel/perf_event.c __perf_event_mmap */ }, }; /* @@ -266,16 +288,37 @@ int event__synthesize_kernel_mmap(event_ */ struct process_symbol_args args = { .name = symbol_name, }; - if (kallsyms__parse("/proc/kallsyms", &args, find_symbol_cb) <= 0) + mmap_name = kern_mmap_name(kerninfo, name_buff); + if (is_host_kernel(kerninfo)) { + /* + * kernel uses PERF_RECORD_MISC_USER for user space maps, + * see kernel/perf_event.c __perf_event_mmap + */ + ev.header.misc = PERF_RECORD_MISC_KERNEL; + filename = "/proc/kallsyms"; + } else { + ev.header.misc = PERF_RECORD_MISC_GUEST_KERNEL; + if (is_default_guest(kerninfo)) + filename = (char *) symbol_conf.default_guest_kallsyms; + else { + sprintf(path, "%s/proc/kallsyms", kerninfo->root_dir); + filename = path; + } + } + + if (kallsyms__parse(filename, &args, find_symbol_cb) <= 0) return -ENOENT; + map = kerninfo->vmlinux_maps[MAP__FUNCTION]; size = snprintf(ev.mmap.filename, sizeof(ev.mmap.filename), - "[kernel.kallsyms.%s]", symbol_name) + 1; + "[%s]%s", mmap_name, symbol_name) + 1; size = ALIGN(size, sizeof(u64)); - ev.mmap.header.size = (sizeof(ev.mmap) - (sizeof(ev.mmap.filename) - size)); + ev.mmap.header.size = (sizeof(ev.mmap) - + (sizeof(ev.mmap.filename) - size)); ev.mmap.pgoff = args.start; - ev.mmap.start = session->vmlinux_maps[MAP__FUNCTION]->start; - ev.mmap.len = session->vmlinux_maps[MAP__FUNCTION]->end - ev.mmap.start ; + ev.mmap.start = map->start; + ev.mmap.len = map->end - ev.mmap.start; + ev.mmap.pid = kerninfo->pid; return process(&ev, session); } @@ -329,82 +372,130 @@ int event__process_lost(event_t *self, s return 0; } -int event__process_mmap(event_t *self, struct perf_session *session) +static void event_set_kernel_mmap_len(struct map **maps, event_t *self) +{ + maps[MAP__FUNCTION]->start = self->mmap.start; + maps[MAP__FUNCTION]->end = self->mmap.start + self->mmap.len; + /* + * Be a bit paranoid here, some perf.data file came with + * a zero sized synthesized MMAP event for the kernel. + */ + if (maps[MAP__FUNCTION]->end == 0) + maps[MAP__FUNCTION]->end = ~0UL; +} + +static int event__process_kernel_mmap(event_t *self, + struct perf_session *session) { - struct thread *thread; struct map *map; + char kmmap_prefix[PATH_MAX]; + struct kernel_info *kerninfo; + enum dso_kernel_type kernel_type; + + kerninfo = kerninfo__findnew(&session->kerninfo_root, self->mmap.pid); + if (!kerninfo) { + pr_err("Can't find id %d's kerninfo\n", self->mmap.pid); + goto out_problem; + } - dump_printf(" %d/%d: [%#Lx(%#Lx) @ %#Lx]: %s\n", - self->mmap.pid, self->mmap.tid, self->mmap.start, - self->mmap.len, self->mmap.pgoff, self->mmap.filename); + kern_mmap_name_parenthese(kerninfo, kmmap_prefix); + if (is_host_kernel(kerninfo)) + kernel_type = DSO_TYPE_KERNEL; + else + kernel_type = DSO_TYPE_GUEST_KERNEL; - if (self->mmap.pid == 0) { - static const char kmmap_prefix[] = "[kernel.kallsyms."; + if (self->mmap.filename[0] == '/') { - if (self->mmap.filename[0] == '/') { - char short_module_name[1024]; - char *name = strrchr(self->mmap.filename, '/'), *dot; - - if (name == NULL) - goto out_problem; - - ++name; /* skip / */ - dot = strrchr(name, '.'); - if (dot == NULL) - goto out_problem; - - snprintf(short_module_name, sizeof(short_module_name), - "[%.*s]", (int)(dot - name), name); - strxfrchar(short_module_name, '-', '_'); - - map = perf_session__new_module_map(session, - self->mmap.start, - self->mmap.filename); - if (map == NULL) - goto out_problem; - - name = strdup(short_module_name); - if (name == NULL) - goto out_problem; - - map->dso->short_name = name; - map->end = map->start + self->mmap.len; - } else if (memcmp(self->mmap.filename, kmmap_prefix, - sizeof(kmmap_prefix) - 1) == 0) { - const char *symbol_name = (self->mmap.filename + - sizeof(kmmap_prefix) - 1); - /* - * Should be there already, from the build-id table in - * the header. - */ - struct dso *kernel = __dsos__findnew(&dsos__kernel, - "[kernel.kallsyms]"); - if (kernel == NULL) - goto out_problem; - - kernel->kernel = 1; - if (__perf_session__create_kernel_maps(session, kernel) < 0) - goto out_problem; + char short_module_name[1024]; + char *name = strrchr(self->mmap.filename, '/'), *dot; - session->vmlinux_maps[MAP__FUNCTION]->start = self->mmap.start; - session->vmlinux_maps[MAP__FUNCTION]->end = self->mmap.start + self->mmap.len; + if (name == NULL) + goto out_problem; + + ++name; /* skip / */ + dot = strrchr(name, '.'); + if (dot == NULL) + goto out_problem; + + snprintf(short_module_name, sizeof(short_module_name), + "[%.*s]", (int)(dot - name), name); + strxfrchar(short_module_name, '-', '_'); + + map = map_groups__new_module(&kerninfo->kmaps, + self->mmap.start, + self->mmap.filename, + kerninfo); + if (map == NULL) + goto out_problem; + + name = strdup(short_module_name); + if (name == NULL) + goto out_problem; + + map->dso->short_name = name; + map->end = map->start + self->mmap.len; + } else if (memcmp(self->mmap.filename, kmmap_prefix, + strlen(kmmap_prefix)) == 0) { + const char *symbol_name = (self->mmap.filename + + strlen(kmmap_prefix)); + /* + * Should be there already, from the build-id table in + * the header. + */ + struct dso *kernel = __dsos__findnew(&kerninfo->dsos__kernel, + kmmap_prefix); + if (kernel == NULL) + goto out_problem; + + kernel->kernel = kernel_type; + if (__map_groups__create_kernel_maps(&kerninfo->kmaps, + kerninfo->vmlinux_maps, kernel) < 0) + goto out_problem; + + event_set_kernel_mmap_len(kerninfo->vmlinux_maps, self); + perf_session__set_kallsyms_ref_reloc_sym(kerninfo->vmlinux_maps, + symbol_name, + self->mmap.pgoff); + if (is_default_guest(kerninfo)) { /* - * Be a bit paranoid here, some perf.data file came with - * a zero sized synthesized MMAP event for the kernel. + * preload dso of guest kernel and modules */ - if (session->vmlinux_maps[MAP__FUNCTION]->end == 0) - session->vmlinux_maps[MAP__FUNCTION]->end = ~0UL; - - perf_session__set_kallsyms_ref_reloc_sym(session, symbol_name, - self->mmap.pgoff); + dso__load(kernel, + kerninfo->vmlinux_maps[MAP__FUNCTION], + NULL); } + } + return 0; +out_problem: + return -1; +} + +int event__process_mmap(event_t *self, struct perf_session *session) +{ + struct kernel_info *kerninfo; + struct thread *thread; + struct map *map; + u8 cpumode = self->header.misc & PERF_RECORD_MISC_CPUMODE_MASK; + int ret = 0; + + dump_printf(" %d/%d: [%#Lx(%#Lx) @ %#Lx]: %s\n", + self->mmap.pid, self->mmap.tid, self->mmap.start, + self->mmap.len, self->mmap.pgoff, self->mmap.filename); + + if (cpumode == PERF_RECORD_MISC_GUEST_KERNEL || + cpumode == PERF_RECORD_MISC_KERNEL) { + ret = event__process_kernel_mmap(self, session); + if (ret < 0) + goto out_problem; return 0; } thread = perf_session__findnew(session, self->mmap.pid); - map = map__new(self->mmap.start, self->mmap.len, self->mmap.pgoff, - self->mmap.pid, self->mmap.filename, MAP__FUNCTION, - session->cwd, session->cwdlen); + kerninfo = kerninfo__findhost(&session->kerninfo_root); + map = map__new(&kerninfo->dsos__user, self->mmap.start, + self->mmap.len, self->mmap.pgoff, + self->mmap.pid, self->mmap.filename, + MAP__FUNCTION, session->cwd, session->cwdlen); if (thread == NULL || map == NULL) goto out_problem; @@ -444,22 +535,52 @@ int event__process_task(event_t *self, s void thread__find_addr_map(struct thread *self, struct perf_session *session, u8 cpumode, - enum map_type type, u64 addr, + enum map_type type, pid_t pid, u64 addr, struct addr_location *al) { struct map_groups *mg = &self->mg; + struct kernel_info *kerninfo = NULL; al->thread = self; al->addr = addr; + al->cpumode = cpumode; + al->filtered = false; - if (cpumode == PERF_RECORD_MISC_KERNEL) { + if (cpumode == PERF_RECORD_MISC_KERNEL && perf_host) { al->level = 'k'; - mg = &session->kmaps; - } else if (cpumode == PERF_RECORD_MISC_USER) + kerninfo = kerninfo__findhost(&session->kerninfo_root); + mg = &kerninfo->kmaps; + } else if (cpumode == PERF_RECORD_MISC_USER && perf_host) { al->level = '.'; - else { - al->level = 'H'; + kerninfo = kerninfo__findhost(&session->kerninfo_root); + } else if (cpumode == PERF_RECORD_MISC_GUEST_KERNEL && perf_guest) { + al->level = 'g'; + kerninfo = kerninfo__find(&session->kerninfo_root, pid); + if (!kerninfo) { + al->map = NULL; + return; + } + mg = &kerninfo->kmaps; + } else { + /* + * 'u' means guest os user space. + * TODO: We don't support guest user space. Might support late. + */ + if (cpumode == PERF_RECORD_MISC_GUEST_USER && perf_guest) + al->level = 'u'; + else + al->level = 'H'; al->map = NULL; + + if ((cpumode == PERF_RECORD_MISC_GUEST_USER || + cpumode == PERF_RECORD_MISC_GUEST_KERNEL) && + !perf_guest) + al->filtered = true; + if ((cpumode == PERF_RECORD_MISC_USER || + cpumode == PERF_RECORD_MISC_KERNEL) && + !perf_host) + al->filtered = true; + return; } try_again: @@ -474,8 +595,11 @@ try_again: * "[vdso]" dso, but for now lets use the old trick of looking * in the whole kernel symbol list. */ - if ((long long)al->addr < 0 && mg != &session->kmaps) { - mg = &session->kmaps; + if ((long long)al->addr < 0 && + cpumode == PERF_RECORD_MISC_KERNEL && + kerninfo && + mg != &kerninfo->kmaps) { + mg = &kerninfo->kmaps; goto try_again; } } else @@ -484,11 +608,11 @@ try_again: void thread__find_addr_location(struct thread *self, struct perf_session *session, u8 cpumode, - enum map_type type, u64 addr, + enum map_type type, pid_t pid, u64 addr, struct addr_location *al, symbol_filter_t filter) { - thread__find_addr_map(self, session, cpumode, type, addr, al); + thread__find_addr_map(self, session, cpumode, type, pid, addr, al); if (al->map != NULL) al->sym = map__find_symbol(al->map, al->addr, filter); else @@ -524,7 +648,7 @@ int event__preprocess_sample(const event dump_printf(" ... thread: %s:%d\n", thread->comm, thread->pid); thread__find_addr_map(thread, session, cpumode, MAP__FUNCTION, - self->ip.ip, al); + self->ip.pid, self->ip.ip, al); dump_printf(" ...... dso: %s\n", al->map ? al->map->dso->long_name : al->level == 'H' ? "[hypervisor]" : ""); @@ -554,7 +678,6 @@ int event__preprocess_sample(const event !strlist__has_entry(symbol_conf.sym_list, al->sym->name)) goto out_filtered; - al->filtered = false; return 0; out_filtered: diff -Nraup linux-2.6_tip0413/tools/perf/util/event.h linux-2.6_tip0413_perfkvm/tools/perf/util/event.h --- linux-2.6_tip0413/tools/perf/util/event.h 2010-04-14 11:11:58.638239002 +0800 +++ linux-2.6_tip0413_perfkvm/tools/perf/util/event.h 2010-04-14 14:12:02.533688079 +0800 @@ -79,6 +79,7 @@ struct sample_data { struct build_id_event { struct perf_event_header header; + pid_t pid; u8 build_id[ALIGN(BUILD_ID_SIZE, sizeof(u64))]; char filename[]; }; @@ -119,10 +120,13 @@ int event__synthesize_thread(pid_t pid, void event__synthesize_threads(event__handler_t process, struct perf_session *session); int event__synthesize_kernel_mmap(event__handler_t process, - struct perf_session *session, - const char *symbol_name); + struct perf_session *session, + struct kernel_info *kerninfo, + const char *symbol_name); + int event__synthesize_modules(event__handler_t process, - struct perf_session *session); + struct perf_session *session, + struct kernel_info *kerninfo); int event__process_comm(event_t *self, struct perf_session *session); int event__process_lost(event_t *self, struct perf_session *session); diff -Nraup linux-2.6_tip0413/tools/perf/util/header.c linux-2.6_tip0413_perfkvm/tools/perf/util/header.c --- linux-2.6_tip0413/tools/perf/util/header.c 2010-04-14 11:11:58.594236160 +0800 +++ linux-2.6_tip0413_perfkvm/tools/perf/util/header.c 2010-04-15 18:07:29.010855524 +0800 @@ -197,7 +197,8 @@ static int write_padded(int fd, const vo continue; \ else -static int __dsos__write_buildid_table(struct list_head *head, u16 misc, int fd) +static int __dsos__write_buildid_table(struct list_head *head, pid_t pid, + u16 misc, int fd) { struct dso *pos; @@ -212,6 +213,7 @@ static int __dsos__write_buildid_table(s len = ALIGN(len, NAME_ALIGN); memset(&b, 0, sizeof(b)); memcpy(&b.build_id, pos->build_id, sizeof(pos->build_id)); + b.pid = pid; b.header.misc = misc; b.header.size = sizeof(b) + len; err = do_write(fd, &b, sizeof(b)); @@ -226,13 +228,33 @@ static int __dsos__write_buildid_table(s return 0; } -static int dsos__write_buildid_table(int fd) +static int dsos__write_buildid_table(struct perf_header *header, int fd) { - int err = __dsos__write_buildid_table(&dsos__kernel, - PERF_RECORD_MISC_KERNEL, fd); - if (err == 0) - err = __dsos__write_buildid_table(&dsos__user, - PERF_RECORD_MISC_USER, fd); + struct perf_session *session = container_of(header, + struct perf_session, header); + struct rb_node *nd; + int err = 0; + u16 kmisc, umisc; + + for (nd = rb_first(&session->kerninfo_root); nd; nd = rb_next(nd)) { + struct kernel_info *pos = rb_entry(nd, struct kernel_info, + rb_node); + if (is_host_kernel(pos)) { + kmisc = PERF_RECORD_MISC_KERNEL; + umisc = PERF_RECORD_MISC_USER; + } else { + kmisc = PERF_RECORD_MISC_GUEST_KERNEL; + umisc = PERF_RECORD_MISC_GUEST_USER; + } + + err = __dsos__write_buildid_table(&pos->dsos__kernel, pos->pid, + kmisc, fd); + if (err == 0) + err = __dsos__write_buildid_table(&pos->dsos__user, + pos->pid, umisc, fd); + if (err) + break; + } return err; } @@ -349,9 +371,12 @@ static int __dsos__cache_build_ids(struc return err; } -static int dsos__cache_build_ids(void) +static int dsos__cache_build_ids(struct perf_header *self) { - int err_kernel, err_user; + struct perf_session *session = container_of(self, + struct perf_session, header); + struct rb_node *nd; + int ret = 0; char debugdir[PATH_MAX]; snprintf(debugdir, sizeof(debugdir), "%s/%s", getenv("HOME"), @@ -360,9 +385,30 @@ static int dsos__cache_build_ids(void) if (mkdir(debugdir, 0755) != 0 && errno != EEXIST) return -1; - err_kernel = __dsos__cache_build_ids(&dsos__kernel, debugdir); - err_user = __dsos__cache_build_ids(&dsos__user, debugdir); - return err_kernel || err_user ? -1 : 0; + for (nd = rb_first(&session->kerninfo_root); nd; nd = rb_next(nd)) { + struct kernel_info *pos = rb_entry(nd, struct kernel_info, + rb_node); + ret |= __dsos__cache_build_ids(&pos->dsos__kernel, debugdir); + ret |= __dsos__cache_build_ids(&pos->dsos__user, debugdir); + } + return ret ? -1 : 0; +} + +static bool dsos__read_build_ids(struct perf_header *self, bool with_hits) +{ + bool ret = false; + struct perf_session *session = container_of(self, + struct perf_session, header); + struct rb_node *nd; + + for (nd = rb_first(&session->kerninfo_root); nd; nd = rb_next(nd)) { + struct kernel_info *pos = rb_entry(nd, struct kernel_info, + rb_node); + ret |= __dsos__read_build_ids(&pos->dsos__kernel, with_hits); + ret |= __dsos__read_build_ids(&pos->dsos__user, with_hits); + } + + return ret; } static int perf_header__adds_write(struct perf_header *self, int fd) @@ -373,7 +419,7 @@ static int perf_header__adds_write(struc u64 sec_start; int idx = 0, err; - if (dsos__read_build_ids(true)) + if (dsos__read_build_ids(self, true)) perf_header__set_feat(self, HEADER_BUILD_ID); nr_sections = bitmap_weight(self->adds_features, HEADER_FEAT_BITS); @@ -408,14 +454,14 @@ static int perf_header__adds_write(struc /* Write build-ids */ buildid_sec->offset = lseek(fd, 0, SEEK_CUR); - err = dsos__write_buildid_table(fd); + err = dsos__write_buildid_table(self, fd); if (err < 0) { pr_debug("failed to write buildid table\n"); goto out_free; } buildid_sec->size = lseek(fd, 0, SEEK_CUR) - buildid_sec->offset; - dsos__cache_build_ids(); + dsos__cache_build_ids(self); } lseek(fd, sec_start, SEEK_SET); @@ -636,6 +682,72 @@ int perf_file_header__read(struct perf_f return 0; } +static int perf_header__read_build_ids(struct perf_header *self, + int input, u64 offset, u64 size) +{ + struct perf_session *session = container_of(self, + struct perf_session, header); + struct build_id_event bev; + char filename[PATH_MAX]; + u64 limit = offset + size; + int err = -1; + struct list_head *head; + struct kernel_info *kerninfo; + u16 misc; + + while (offset < limit) { + struct dso *dso; + ssize_t len; + enum dso_kernel_type dso_type; + + if (read(input, &bev, sizeof(bev)) != sizeof(bev)) + goto out; + + kerninfo = kerninfo__findnew(&session->kerninfo_root, bev.pid); + if (!kerninfo) + goto out; + + if (self->needs_swap) + perf_event_header__bswap(&bev.header); + + len = bev.header.size - sizeof(bev); + if (read(input, filename, len) != len) + goto out; + + misc = bev.header.misc & PERF_RECORD_MISC_CPUMODE_MASK; + + switch (misc) { + case PERF_RECORD_MISC_KERNEL: + dso_type = DSO_TYPE_KERNEL; + head = &kerninfo->dsos__kernel; + break; + case PERF_RECORD_MISC_GUEST_KERNEL: + dso_type = DSO_TYPE_GUEST_KERNEL; + head = &kerninfo->dsos__kernel; + break; + case PERF_RECORD_MISC_USER: + case PERF_RECORD_MISC_GUEST_USER: + dso_type = DSO_TYPE_USER; + head = &kerninfo->dsos__user; + break; + default: + goto out; + } + + dso = __dsos__findnew(head, filename); + if (dso != NULL) { + dso__set_build_id(dso, &bev.build_id); + if (filename[0] == '[') + dso->kernel = dso_type; + } + + offset += bev.header.size; + } + err = 0; +out: + return err; +} + static int perf_file_section__process(struct perf_file_section *self, struct perf_header *ph, int feat, int fd) diff -Nraup linux-2.6_tip0413/tools/perf/util/hist.c linux-2.6_tip0413_perfkvm/tools/perf/util/hist.c --- linux-2.6_tip0413/tools/perf/util/hist.c 2010-04-14 11:11:58.766255670 +0800 +++ linux-2.6_tip0413_perfkvm/tools/perf/util/hist.c 2010-04-15 18:08:28.379944370 +0800 @@ -8,6 +8,30 @@ struct callchain_param callchain_param = .min_percent = 0.5 }; +void __perf_session__add_count(struct hist_entry *he, + struct addr_location *al, + u64 count) +{ + he->count += count; + + switch (al->cpumode) { + case PERF_RECORD_MISC_KERNEL: + he->count_sys += count; + break; + case PERF_RECORD_MISC_USER: + he->count_us += count; + break; + case PERF_RECORD_MISC_GUEST_KERNEL: + he->count_guest_sys += count; + break; + case PERF_RECORD_MISC_GUEST_USER: + he->count_guest_us += count; + break; + default: + break; + } +} + /* * histogram, sorted on item, collects counts */ @@ -464,7 +488,7 @@ int hist_entry__snprintf(struct hist_ent u64 session_total) { struct sort_entry *se; - u64 count, total; + u64 count, total, count_sys, count_us, count_guest_sys, count_guest_us; const char *sep = symbol_conf.field_sep; int ret; @@ -474,9 +498,17 @@ int hist_entry__snprintf(struct hist_ent if (pair_session) { count = self->pair ? self->pair->count : 0; total = pair_session->events_stats.total; + count_sys = self->pair ? self->pair->count_sys : 0; + count_us = self->pair ? self->pair->count_us : 0; + count_guest_sys = self->pair ? self->pair->count_guest_sys : 0; + count_guest_us = self->pair ? self->pair->count_guest_us : 0; } else { count = self->count; total = session_total; + count_sys = self->count_sys; + count_us = self->count_us; + count_guest_sys = self->count_guest_sys; + count_guest_us = self->count_guest_us; } if (total) { @@ -487,6 +519,26 @@ int hist_entry__snprintf(struct hist_ent else ret = snprintf(s, size, sep ? "%.2f" : " %6.2f%%", (count * 100.0) / total); + if (symbol_conf.show_cpu_utilization) { + ret += percent_color_snprintf(s + ret, size - ret, + sep ? "%.2f" : " %6.2f%%", + (count_sys * 100.0) / total); + ret += percent_color_snprintf(s + ret, size - ret, + sep ? "%.2f" : " %6.2f%%", + (count_us * 100.0) / total); + if (perf_guest) { + ret += percent_color_snprintf(s + ret, + size - ret, + sep ? "%.2f" : " %6.2f%%", + (count_guest_sys * 100.0) / + total); + ret += percent_color_snprintf(s + ret, + size - ret, + sep ? "%.2f" : " %6.2f%%", + (count_guest_us * 100.0) / + total); + } + } } else ret = snprintf(s, size, sep ? "%lld" : "%12lld ", count); @@ -597,6 +649,24 @@ size_t perf_session__fprintf_hists(struc fputs(" Samples ", fp); } + if (symbol_conf.show_cpu_utilization) { + if (sep) { + ret += fprintf(fp, "%csys", *sep); + ret += fprintf(fp, "%cus", *sep); + if (perf_guest) { + ret += fprintf(fp, "%cguest sys", *sep); + ret += fprintf(fp, "%cguest us", *sep); + } + } else { + ret += fprintf(fp, " sys "); + ret += fprintf(fp, " us "); + if (perf_guest) { + ret += fprintf(fp, " guest sys "); + ret += fprintf(fp, " guest us "); + } + } + } + if (pair) { if (sep) ret += fprintf(fp, "%cDelta", *sep); diff -Nraup linux-2.6_tip0413/tools/perf/util/hist.h linux-2.6_tip0413_perfkvm/tools/perf/util/hist.h --- linux-2.6_tip0413/tools/perf/util/hist.h 2010-04-14 11:11:58.674215806 +0800 +++ linux-2.6_tip0413_perfkvm/tools/perf/util/hist.h 2010-04-14 11:13:17.317861518 +0800 @@ -12,6 +12,9 @@ struct addr_location; struct symbol; struct rb_root; +void __perf_session__add_count(struct hist_entry *he, + struct addr_location *al, + u64 count); struct hist_entry *__perf_session__add_hist_entry(struct rb_root *hists, struct addr_location *al, struct symbol *parent, diff -Nraup linux-2.6_tip0413/tools/perf/util/map.c linux-2.6_tip0413_perfkvm/tools/perf/util/map.c --- linux-2.6_tip0413/tools/perf/util/map.c 2010-04-14 11:11:58.642241284 +0800 +++ linux-2.6_tip0413_perfkvm/tools/perf/util/map.c 2010-04-16 12:29:12.013545441 +0800 @@ -4,6 +4,7 @@ #include #include #include +#include #include "map.h" const char *map_type__name[MAP__NR_TYPES] = { @@ -37,9 +38,11 @@ void map__init(struct map *self, enum ma self->map_ip = map__map_ip; self->unmap_ip = map__unmap_ip; RB_CLEAR_NODE(&self->rb_node); + self->groups = NULL; } -struct map *map__new(u64 start, u64 len, u64 pgoff, u32 pid, char *filename, +struct map *map__new(struct list_head *dsos__list, u64 start, u64 len, + u64 pgoff, u32 pid, char *filename, enum map_type type, char *cwd, int cwdlen) { struct map *self = malloc(sizeof(*self)); @@ -66,7 +69,7 @@ struct map *map__new(u64 start, u64 len, filename = newfilename; } - dso = dsos__findnew(filename); + dso = __dsos__findnew(dsos__list, filename); if (dso == NULL) goto out_delete; @@ -242,6 +245,7 @@ void map_groups__init(struct map_groups self->maps[i] = RB_ROOT; INIT_LIST_HEAD(&self->removed_maps[i]); } + self->this_kerninfo = NULL; } void map_groups__flush(struct map_groups *self) @@ -508,3 +512,144 @@ struct map *maps__find(struct rb_root *m return NULL; } + +struct kernel_info *add_new_kernel_info(struct rb_root *kerninfo_root, + pid_t pid, const char *root_dir) +{ + struct rb_node **p = &kerninfo_root->rb_node; + struct rb_node *parent = NULL; + struct kernel_info *kerninfo, *pos; + + kerninfo = malloc(sizeof(struct kernel_info)); + if (!kerninfo) + return NULL; + + kerninfo->pid = pid; + map_groups__init(&kerninfo->kmaps); + kerninfo->root_dir = strdup(root_dir); + RB_CLEAR_NODE(&kerninfo->rb_node); + INIT_LIST_HEAD(&kerninfo->dsos__user); + INIT_LIST_HEAD(&kerninfo->dsos__kernel); + kerninfo->kmaps.this_kerninfo = kerninfo; + + while (*p != NULL) { + parent = *p; + pos = rb_entry(parent, struct kernel_info, rb_node); + if (pid < pos->pid) + p = &(*p)->rb_left; + else + p = &(*p)->rb_right; + } + + rb_link_node(&kerninfo->rb_node, parent, p); + rb_insert_color(&kerninfo->rb_node, kerninfo_root); + + return kerninfo; +} + +struct kernel_info *kerninfo__find(struct rb_root *kerninfo_root, pid_t pid) +{ + struct rb_node **p = &kerninfo_root->rb_node; + struct rb_node *parent = NULL; + struct kernel_info *kerninfo; + struct kernel_info *default_kerninfo = NULL; + + while (*p != NULL) { + parent = *p; + kerninfo = rb_entry(parent, struct kernel_info, rb_node); + if (pid < kerninfo->pid) + p = &(*p)->rb_left; + else if (pid > kerninfo->pid) + p = &(*p)->rb_right; + else + return kerninfo; + if (!kerninfo->pid) + default_kerninfo = kerninfo; + } + + return default_kerninfo; +} + +struct kernel_info *kerninfo__findhost(struct rb_root *kerninfo_root) +{ + struct rb_node **p = &kerninfo_root->rb_node; + struct rb_node *parent = NULL; + struct kernel_info *kerninfo; + pid_t pid = HOST_KERNEL_ID; + + while (*p != NULL) { + parent = *p; + kerninfo = rb_entry(parent, struct kernel_info, rb_node); + if (pid < kerninfo->pid) + p = &(*p)->rb_left; + else if (pid > kerninfo->pid) + p = &(*p)->rb_right; + else + return kerninfo; + } + + return NULL; +} + +struct kernel_info *kerninfo__findnew(struct rb_root *kerninfo_root, pid_t pid) +{ + char path[PATH_MAX]; + const char *root_dir; + int ret; + struct kernel_info *kerninfo = kerninfo__find(kerninfo_root, pid); + + if (!kerninfo || kerninfo->pid != pid) { + if (pid == HOST_KERNEL_ID || pid == DEFAULT_GUEST_KERNEL_ID) + root_dir = ""; + else { + if (!symbol_conf.guestmount) + goto out; + sprintf(path, "%s/%d", symbol_conf.guestmount, pid); + ret = access(path, R_OK); + if (ret) { + pr_err("Can't access file %s\n", path); + goto out; + } + root_dir = path; + } + kerninfo = add_new_kernel_info(kerninfo_root, pid, root_dir); + } + +out: + return kerninfo; +} + +void kerninfo__process_allkernels(struct rb_root *kerninfo_root, + process_kernel_info process, + void *data) +{ + struct rb_node *nd; + + for (nd = rb_first(kerninfo_root); nd; nd = rb_next(nd)) { + struct kernel_info *pos = rb_entry(nd, struct kernel_info, + rb_node); + process(pos, data); + } +} + +char *kern_mmap_name(struct kernel_info *kerninfo, char *buff) +{ + if (is_host_kernel(kerninfo)) + sprintf(buff, "%s", "kernel.kallsyms"); + else if (is_default_guest(kerninfo)) + sprintf(buff, "%s", "guest.kernel.kallsyms"); + else + sprintf(buff, "%s.%d", "guest.kernel.kallsyms", kerninfo->pid); + + return buff; +} + +char *kern_mmap_name_parenthese(struct kernel_info *kerninfo, char *buff) +{ + char name[PATH_MAX]; + + kern_mmap_name(kerninfo, name); + sprintf(buff, "[%s]", name); + return buff; +} + diff -Nraup linux-2.6_tip0413/tools/perf/util/map.h linux-2.6_tip0413_perfkvm/tools/perf/util/map.h --- linux-2.6_tip0413/tools/perf/util/map.h 2010-04-14 11:11:58.686216105 +0800 +++ linux-2.6_tip0413_perfkvm/tools/perf/util/map.h 2010-04-16 12:39:20.253178208 +0800 @@ -19,6 +19,7 @@ extern const char *map_type__name[MAP__N struct dso; struct ref_reloc_sym; struct map_groups; +struct kernel_info; struct map { union { @@ -36,6 +37,7 @@ struct map { u64 (*unmap_ip)(struct map *, u64); struct dso *dso; + struct map_groups *groups; }; struct kmap { @@ -43,6 +45,26 @@ struct kmap { struct map_groups *kmaps; }; +struct map_groups { + struct rb_root maps[MAP__NR_TYPES]; + struct list_head removed_maps[MAP__NR_TYPES]; + struct kernel_info *this_kerninfo; +}; + +/* Native host kernel uses -1 as pid index in kernel_info */ +#define HOST_KERNEL_ID (-1) +#define DEFAULT_GUEST_KERNEL_ID (0) + +struct kernel_info { + struct rb_node rb_node; + pid_t pid; + char *root_dir; + struct list_head dsos__user; + struct list_head dsos__kernel; + struct map_groups kmaps; + struct map *vmlinux_maps[MAP__NR_TYPES]; +}; + static inline struct kmap *map__kmap(struct map *self) { return (struct kmap *)(self + 1); @@ -74,7 +96,8 @@ typedef int (*symbol_filter_t)(struct ma void map__init(struct map *self, enum map_type type, u64 start, u64 end, u64 pgoff, struct dso *dso); -struct map *map__new(u64 start, u64 len, u64 pgoff, u32 pid, char *filename, +struct map *map__new(struct list_head *dsos__list, u64 start, u64 len, + u64 pgoff, u32 pid, char *filename, enum map_type type, char *cwd, int cwdlen); void map__delete(struct map *self); struct map *map__clone(struct map *self); @@ -91,11 +114,6 @@ void map__fixup_end(struct map *self); void map__reloc_vmlinux(struct map *self); -struct map_groups { - struct rb_root maps[MAP__NR_TYPES]; - struct list_head removed_maps[MAP__NR_TYPES]; -}; - size_t __map_groups__fprintf_maps(struct map_groups *self, enum map_type type, int verbose, FILE *fp); void maps__insert(struct rb_root *maps, struct map *map); @@ -106,9 +124,41 @@ int map_groups__clone(struct map_groups size_t map_groups__fprintf(struct map_groups *self, int verbose, FILE *fp); size_t map_groups__fprintf_maps(struct map_groups *self, int verbose, FILE *fp); +struct kernel_info *add_new_kernel_info(struct rb_root *kerninfo_root, + pid_t pid, const char *root_dir); +struct kernel_info *kerninfo__find(struct rb_root *kerninfo_root, pid_t pid); +struct kernel_info *kerninfo__findnew(struct rb_root *kerninfo_root, pid_t pid); +struct kernel_info *kerninfo__findhost(struct rb_root *kerninfo_root); +char *kern_mmap_name(struct kernel_info *kerninfo, char *buff); +char *kern_mmap_name_parenthese(struct kernel_info *kerninfo, char *buff); + +/* + * Default guest kernel is defined by parameter --guestkallsyms + * and --guestmodules + */ +static inline int is_default_guest(struct kernel_info *kerninfo) +{ + if (!kerninfo) + return 0; + return kerninfo->pid == DEFAULT_GUEST_KERNEL_ID; +} + +static inline int is_host_kernel(struct kernel_info *kerninfo) +{ + if (!kerninfo) + return 0; + return kerninfo->pid == HOST_KERNEL_ID; +} + +typedef void (*process_kernel_info)(struct kernel_info *kerninfo, void *data); +void kerninfo__process_allkernels(struct rb_root *kerninfo_root, + process_kernel_info process, + void *data); + static inline void map_groups__insert(struct map_groups *self, struct map *map) { - maps__insert(&self->maps[map->type], map); + maps__insert(&self->maps[map->type], map); + map->groups = self; } static inline struct map *map_groups__find(struct map_groups *self, @@ -148,13 +198,11 @@ int map_groups__fixup_overlappings(struc struct map *map_groups__find_by_name(struct map_groups *self, enum map_type type, const char *name); -int __map_groups__create_kernel_maps(struct map_groups *self, - struct map *vmlinux_maps[MAP__NR_TYPES], - struct dso *kernel); -int map_groups__create_kernel_maps(struct map_groups *self, - struct map *vmlinux_maps[MAP__NR_TYPES]); -struct map *map_groups__new_module(struct map_groups *self, u64 start, - const char *filename); +struct map *map_groups__new_module(struct map_groups *self, + u64 start, + const char *filename, + struct kernel_info *kerninfo); + void map_groups__flush(struct map_groups *self); #endif /* __PERF_MAP_H */ diff -Nraup linux-2.6_tip0413/tools/perf/util/probe-event.c linux-2.6_tip0413_perfkvm/tools/perf/util/probe-event.c --- linux-2.6_tip0413/tools/perf/util/probe-event.c 2010-04-14 11:11:58.614279111 +0800 +++ linux-2.6_tip0413_perfkvm/tools/perf/util/probe-event.c 2010-04-14 11:13:17.321860837 +0800 @@ -78,6 +78,8 @@ static struct map *kmaps[MAP__NR_TYPES]; /* Initialize symbol maps and path of vmlinux */ static void init_vmlinux(void) { + struct dso *kernel; + symbol_conf.sort_by_name = true; if (symbol_conf.vmlinux_name == NULL) symbol_conf.try_vmlinux_path = true; @@ -86,8 +88,12 @@ static void init_vmlinux(void) if (symbol__init() < 0) die("Failed to init symbol map."); + kernel = dso__new_kernel(symbol_conf.vmlinux_name); + if (kernel == NULL) + die("Failed to create kernel dso."); + map_groups__init(&kmap_groups); - if (map_groups__create_kernel_maps(&kmap_groups, kmaps) < 0) + if (__map_groups__create_kernel_maps(&kmap_groups, kmaps, kernel) < 0) die("Failed to create kernel maps."); } diff -Nraup linux-2.6_tip0413/tools/perf/util/session.c linux-2.6_tip0413_perfkvm/tools/perf/util/session.c --- linux-2.6_tip0413/tools/perf/util/session.c 2010-04-14 11:11:58.794254600 +0800 +++ linux-2.6_tip0413_perfkvm/tools/perf/util/session.c 2010-04-15 18:15:17.650831879 +0800 @@ -52,6 +52,17 @@ out_close: return -1; } +int perf_session__create_kernel_maps(struct perf_session *self) +{ + int ret; + struct rb_root *root = &self->kerninfo_root; + + ret = map_groups__create_kernel_maps(root, HOST_KERNEL_ID); + if (ret >= 0) + ret = map_groups__create_guest_kernel_maps(root); + return ret; +} + struct perf_session *perf_session__new(const char *filename, int mode, bool force) { size_t len = filename ? strlen(filename) + 1 : 0; @@ -71,7 +82,7 @@ struct perf_session *perf_session__new(c self->cwd = NULL; self->cwdlen = 0; self->unknown_events = 0; - map_groups__init(&self->kmaps); + self->kerninfo_root = RB_ROOT; if (mode == O_RDONLY) { if (perf_session__open(self, force) < 0) @@ -142,8 +153,9 @@ struct map_symbol *perf_session__resolve continue; } + al.filtered = false; thread__find_addr_location(thread, self, cpumode, - MAP__FUNCTION, ip, &al, NULL); + MAP__FUNCTION, thread->pid, ip, &al, NULL); if (al.sym != NULL) { if (sort__has_parent && !*parent && symbol__match_parent_regex(al.sym)) @@ -324,46 +336,6 @@ void perf_event_header__bswap(struct per self->size = bswap_16(self->size); } -int perf_header__read_build_ids(struct perf_header *self, - int input, u64 offset, u64 size) -{ - struct build_id_event bev; - char filename[PATH_MAX]; - u64 limit = offset + size; - int err = -1; - - while (offset < limit) { - struct dso *dso; - ssize_t len; - struct list_head *head = &dsos__user; - - if (read(input, &bev, sizeof(bev)) != sizeof(bev)) - goto out; - - if (self->needs_swap) - perf_event_header__bswap(&bev.header); - - len = bev.header.size - sizeof(bev); - if (read(input, filename, len) != len) - goto out; - - if (bev.header.misc & PERF_RECORD_MISC_KERNEL) - head = &dsos__kernel; - - dso = __dsos__findnew(head, filename); - if (dso != NULL) { - dso__set_build_id(dso, &bev.build_id); - if (head == &dsos__kernel && filename[0] == '[') - dso->kernel = 1; - } - - offset += bev.header.size; - } - err = 0; -out: - return err; -} - static struct thread *perf_session__register_idle_thread(struct perf_session *self) { struct thread *thread = perf_session__findnew(self, 0); @@ -516,26 +488,33 @@ bool perf_session__has_traces(struct per return true; } -int perf_session__set_kallsyms_ref_reloc_sym(struct perf_session *self, +int perf_session__set_kallsyms_ref_reloc_sym(struct map **maps, const char *symbol_name, u64 addr) { char *bracket; enum map_type i; + struct ref_reloc_sym *ref; + + ref = zalloc(sizeof(struct ref_reloc_sym)); + if (ref == NULL) + return -ENOMEM; - self->ref_reloc_sym.name = strdup(symbol_name); - if (self->ref_reloc_sym.name == NULL) + ref->name = strdup(symbol_name); + if (ref->name == NULL) { + free(ref); return -ENOMEM; + } - bracket = strchr(self->ref_reloc_sym.name, ']'); + bracket = strchr(ref->name, ']'); if (bracket) *bracket = '\0'; - self->ref_reloc_sym.addr = addr; + ref->addr = addr; for (i = 0; i < MAP__NR_TYPES; ++i) { - struct kmap *kmap = map__kmap(self->vmlinux_maps[i]); - kmap->ref_reloc_sym = &self->ref_reloc_sym; + struct kmap *kmap = map__kmap(maps[i]); + kmap->ref_reloc_sym = ref; } return 0; diff -Nraup linux-2.6_tip0413/tools/perf/util/session.h linux-2.6_tip0413_perfkvm/tools/perf/util/session.h --- linux-2.6_tip0413/tools/perf/util/session.h 2010-04-14 11:11:58.606252925 +0800 +++ linux-2.6_tip0413_perfkvm/tools/perf/util/session.h 2010-04-15 18:15:31.480436185 +0800 @@ -15,17 +15,15 @@ struct perf_session { struct perf_header header; unsigned long size; unsigned long mmap_window; - struct map_groups kmaps; struct rb_root threads; struct thread *last_match; - struct map *vmlinux_maps[MAP__NR_TYPES]; + struct rb_root kerninfo_root; struct events_stats events_stats; struct rb_root stats_by_id; unsigned long event_total[PERF_RECORD_MAX]; unsigned long unknown_events; struct rb_root hists; u64 sample_type; - struct ref_reloc_sym ref_reloc_sym; int fd; int cwdlen; char *cwd; @@ -64,33 +62,13 @@ struct map_symbol *perf_session__resolve bool perf_session__has_traces(struct perf_session *self, const char *msg); -int perf_header__read_build_ids(struct perf_header *self, int input, - u64 offset, u64 file_size); - -int perf_session__set_kallsyms_ref_reloc_sym(struct perf_session *self, +int perf_session__set_kallsyms_ref_reloc_sym(struct map **maps, const char *symbol_name, u64 addr); void mem_bswap_64(void *src, int byte_size); -static inline int __perf_session__create_kernel_maps(struct perf_session *self, - struct dso *kernel) -{ - return __map_groups__create_kernel_maps(&self->kmaps, - self->vmlinux_maps, kernel); -} - -static inline int perf_session__create_kernel_maps(struct perf_session *self) -{ - return map_groups__create_kernel_maps(&self->kmaps, self->vmlinux_maps); -} - -static inline struct map * - perf_session__new_module_map(struct perf_session *self, - u64 start, const char *filename) -{ - return map_groups__new_module(&self->kmaps, start, filename); -} +int perf_session__create_kernel_maps(struct perf_session *self); #ifdef NO_NEWT_SUPPORT static inline int perf_session__browse_hists(struct rb_root *hists __used, diff -Nraup linux-2.6_tip0413/tools/perf/util/sort.h linux-2.6_tip0413_perfkvm/tools/perf/util/sort.h --- linux-2.6_tip0413/tools/perf/util/sort.h 2010-04-14 11:11:58.610258472 +0800 +++ linux-2.6_tip0413_perfkvm/tools/perf/util/sort.h 2010-04-14 11:13:17.321860837 +0800 @@ -44,6 +44,11 @@ extern enum sort_type sort__first_dimens struct hist_entry { struct rb_node rb_node; u64 count; + u64 count_sys; + u64 count_us; + u64 count_guest_sys; + u64 count_guest_us; + /* * XXX WARNING! * thread _has_ to come after ms, see diff -Nraup linux-2.6_tip0413/tools/perf/util/symbol.c linux-2.6_tip0413_perfkvm/tools/perf/util/symbol.c --- linux-2.6_tip0413/tools/perf/util/symbol.c 2010-04-14 11:11:58.614279111 +0800 +++ linux-2.6_tip0413_perfkvm/tools/perf/util/symbol.c 2010-04-16 15:58:25.355509333 +0800 @@ -28,6 +28,8 @@ static void dsos__add(struct list_head * static struct map *map__new2(u64 start, struct dso *dso, enum map_type type); static int dso__load_kernel_sym(struct dso *self, struct map *map, symbol_filter_t filter); +static int dso__load_guest_kernel_sym(struct dso *self, struct map *map, + symbol_filter_t filter); static int vmlinux_path__nr_entries; static char **vmlinux_path; @@ -186,6 +188,7 @@ struct dso *dso__new(const char *name) self->loaded = 0; self->sorted_by_name = 0; self->has_build_id = 0; + self->kernel = DSO_TYPE_USER; } return self; @@ -402,12 +405,9 @@ int kallsyms__parse(const char *filename char *symbol_name; line_len = getline(&line, &n, file); - if (line_len < 0) + if (line_len < 0 || !line) break; - if (!line) - goto out_failure; - line[--line_len] = '\0'; /* \n */ len = hex2u64(line, &start); @@ -459,6 +459,7 @@ static int map__process_kallsym_symbol(v * map__split_kallsyms, when we have split the maps per module */ symbols__insert(root, sym); + return 0; } @@ -483,6 +484,7 @@ static int dso__split_kallsyms(struct ds symbol_filter_t filter) { struct map_groups *kmaps = map__kmap(map)->kmaps; + struct kernel_info *kerninfo = kmaps->this_kerninfo; struct map *curr_map = map; struct symbol *pos; int count = 0; @@ -504,15 +506,33 @@ static int dso__split_kallsyms(struct ds *module++ = '\0'; if (strcmp(curr_map->dso->short_name, module)) { - curr_map = map_groups__find_by_name(kmaps, map->type, module); + if (curr_map != map && + self->kernel == DSO_TYPE_GUEST_KERNEL && + is_default_guest(kerninfo)) { + /* + * We assume all symbols of a module are + * continuous in * kallsyms, so curr_map + * points to a module and all its + * symbols are in its kmap. Mark it as + * loaded. + */ + dso__set_loaded(curr_map->dso, + curr_map->type); + } + + curr_map = map_groups__find_by_name(kmaps, + map->type, module); if (curr_map == NULL) { - pr_debug("/proc/{kallsyms,modules} " + pr_err("%s/proc/{kallsyms,modules} " "inconsistency while looking " - "for \"%s\" module!\n", module); - return -1; + "for \"%s\" module!\n", + kerninfo->root_dir, module); + curr_map = map; + goto discard_symbol; } - if (curr_map->dso->loaded) + if (curr_map->dso->loaded && + !is_default_guest(kmaps->this_kerninfo)) goto discard_symbol; } /* @@ -525,13 +545,21 @@ static int dso__split_kallsyms(struct ds char dso_name[PATH_MAX]; struct dso *dso; - snprintf(dso_name, sizeof(dso_name), "[kernel].%d", - kernel_range++); + if (self->kernel == DSO_TYPE_GUEST_KERNEL) + snprintf(dso_name, sizeof(dso_name), + "[guest.kernel].%d", + kernel_range++); + else + snprintf(dso_name, sizeof(dso_name), + "[kernel].%d", + kernel_range++); dso = dso__new(dso_name); if (dso == NULL) return -1; + dso->kernel = self->kernel; + curr_map = map__new2(pos->start, dso, map->type); if (curr_map == NULL) { dso__delete(dso); @@ -555,6 +583,12 @@ discard_symbol: rb_erase(&pos->rb_node, } } + if (curr_map != map && + self->kernel == DSO_TYPE_GUEST_KERNEL && + is_default_guest(kmaps->this_kerninfo)) { + dso__set_loaded(curr_map->dso, curr_map->type); + } + return count; } @@ -565,7 +599,10 @@ int dso__load_kallsyms(struct dso *self, return -1; symbols__fixup_end(&self->symbols[map->type]); - self->origin = DSO__ORIG_KERNEL; + if (self->kernel == DSO_TYPE_GUEST_KERNEL) + self->origin = DSO__ORIG_GUEST_KERNEL; + else + self->origin = DSO__ORIG_KERNEL; return dso__split_kallsyms(self, map, filter); } @@ -952,7 +989,7 @@ static int dso__load_sym(struct dso *sel nr_syms = shdr.sh_size / shdr.sh_entsize; memset(&sym, 0, sizeof(sym)); - if (!self->kernel) { + if (self->kernel == DSO_TYPE_USER) { self->adjust_symbols = (ehdr.e_type == ET_EXEC || elf_section_by_name(elf, &ehdr, &shdr, ".gnu.prelink_undo", @@ -984,7 +1021,7 @@ static int dso__load_sym(struct dso *sel section_name = elf_sec__name(&shdr, secstrs); - if (self->kernel || kmodule) { + if (self->kernel != DSO_TYPE_USER || kmodule) { char dso_name[PATH_MAX]; if (strcmp(section_name, @@ -1011,6 +1048,7 @@ static int dso__load_sym(struct dso *sel curr_dso = dso__new(dso_name); if (curr_dso == NULL) goto out_elf_end; + curr_dso->kernel = self->kernel; curr_map = map__new2(start, curr_dso, map->type); if (curr_map == NULL) { @@ -1021,7 +1059,7 @@ static int dso__load_sym(struct dso *sel curr_map->unmap_ip = identity__map_ip; curr_dso->origin = self->origin; map_groups__insert(kmap->kmaps, curr_map); - dsos__add(&dsos__kernel, curr_dso); + dsos__add(&self->node, curr_dso); dso__set_loaded(curr_dso, map->type); } else curr_dso = curr_map->dso; @@ -1083,7 +1121,7 @@ static bool dso__build_id_equal(const st return memcmp(self->build_id, build_id, sizeof(self->build_id)) == 0; } -static bool __dsos__read_build_ids(struct list_head *head, bool with_hits) +bool __dsos__read_build_ids(struct list_head *head, bool with_hits) { bool have_build_id = false; struct dso *pos; @@ -1101,13 +1139,6 @@ static bool __dsos__read_build_ids(struc return have_build_id; } -bool dsos__read_build_ids(bool with_hits) -{ - bool kbuildids = __dsos__read_build_ids(&dsos__kernel, with_hits), - ubuildids = __dsos__read_build_ids(&dsos__user, with_hits); - return kbuildids || ubuildids; -} - /* * Align offset to 4 bytes as needed for note name and descriptor data. */ @@ -1242,6 +1273,8 @@ char dso__symtab_origin(const struct dso [DSO__ORIG_BUILDID] = 'b', [DSO__ORIG_DSO] = 'd', [DSO__ORIG_KMODULE] = 'K', + [DSO__ORIG_GUEST_KERNEL] = 'g', + [DSO__ORIG_GUEST_KMODULE] = 'G', }; if (self == NULL || self->origin == DSO__ORIG_NOT_FOUND) @@ -1257,11 +1290,20 @@ int dso__load(struct dso *self, struct m char build_id_hex[BUILD_ID_SIZE * 2 + 1]; int ret = -1; int fd; + struct kernel_info *kerninfo; + const char *root_dir; dso__set_loaded(self, map->type); - if (self->kernel) + if (self->kernel == DSO_TYPE_KERNEL) return dso__load_kernel_sym(self, map, filter); + else if (self->kernel == DSO_TYPE_GUEST_KERNEL) + return dso__load_guest_kernel_sym(self, map, filter); + + if (map->groups && map->groups->this_kerninfo) + kerninfo = map->groups->this_kerninfo; + else + kerninfo = NULL; name = malloc(size); if (!name) @@ -1315,6 +1357,13 @@ more: case DSO__ORIG_DSO: snprintf(name, size, "%s", self->long_name); break; + case DSO__ORIG_GUEST_KMODULE: + if (map->groups && map->groups->this_kerninfo) + root_dir = map->groups->this_kerninfo->root_dir; + else + root_dir = ""; + snprintf(name, size, "%s%s", root_dir, self->long_name); + break; default: goto out; @@ -1368,7 +1417,8 @@ struct map *map_groups__find_by_name(str return NULL; } -static int dso__kernel_module_get_build_id(struct dso *self) +static int dso__kernel_module_get_build_id(struct dso *self, + const char *root_dir) { char filename[PATH_MAX]; /* @@ -1378,8 +1428,8 @@ static int dso__kernel_module_get_build_ const char *name = self->short_name + 1; snprintf(filename, sizeof(filename), - "/sys/module/%.*s/notes/.note.gnu.build-id", - (int)strlen(name - 1), name); + "%s/sys/module/%.*s/notes/.note.gnu.build-id", + root_dir, (int)strlen(name) - 1, name); if (sysfs__read_build_id(filename, self->build_id, sizeof(self->build_id)) == 0) @@ -1388,7 +1438,8 @@ static int dso__kernel_module_get_build_ return 0; } -static int map_groups__set_modules_path_dir(struct map_groups *self, char *dir_name) +static int map_groups__set_modules_path_dir(struct map_groups *self, + const char *dir_name) { struct dirent *dent; DIR *dir = opendir(dir_name); @@ -1400,8 +1451,14 @@ static int map_groups__set_modules_path_ while ((dent = readdir(dir)) != NULL) { char path[PATH_MAX]; + struct stat st; - if (dent->d_type == DT_DIR) { + /*sshfs might return bad dent->d_type, so we have to stat*/ + sprintf(path, "%s/%s", dir_name, dent->d_name); + if (stat(path, &st)) + continue; + + if (S_ISDIR(st.st_mode)) { if (!strcmp(dent->d_name, ".") || !strcmp(dent->d_name, "..")) continue; @@ -1433,7 +1490,7 @@ static int map_groups__set_modules_path_ if (long_name == NULL) goto failure; dso__set_long_name(map->dso, long_name); - dso__kernel_module_get_build_id(map->dso); + dso__kernel_module_get_build_id(map->dso, ""); } } @@ -1443,16 +1500,46 @@ failure: return -1; } -static int map_groups__set_modules_path(struct map_groups *self) +static char *get_kernel_version(const char *root_dir) { - struct utsname uts; + char version[PATH_MAX]; + FILE *file; + char *name, *tmp; + const char *prefix = "Linux version "; + + sprintf(version, "%s/proc/version", root_dir); + file = fopen(version, "r"); + if (!file) + return NULL; + + version[0] = '\0'; + tmp = fgets(version, sizeof(version), file); + fclose(file); + + name = strstr(version, prefix); + if (!name) + return NULL; + name += strlen(prefix); + tmp = strchr(name, ' '); + if (tmp) + *tmp = '\0'; + + return strdup(name); +} + +static int map_groups__set_modules_path(struct map_groups *self, + const char *root_dir) +{ + char *version; char modules_path[PATH_MAX]; - if (uname(&uts) < 0) + version = get_kernel_version(root_dir); + if (!version) return -1; - snprintf(modules_path, sizeof(modules_path), "/lib/modules/%s/kernel", - uts.release); + snprintf(modules_path, sizeof(modules_path), "%s/lib/modules/%s/kernel", + root_dir, version); + free(version); return map_groups__set_modules_path_dir(self, modules_path); } @@ -1477,11 +1564,13 @@ static struct map *map__new2(u64 start, } struct map *map_groups__new_module(struct map_groups *self, u64 start, - const char *filename) + const char *filename, + struct kernel_info *kerninfo) { struct map *map; - struct dso *dso = __dsos__findnew(&dsos__kernel, filename); + struct dso *dso; + dso = __dsos__findnew(&kerninfo->dsos__kernel, filename); if (dso == NULL) return NULL; @@ -1489,21 +1578,37 @@ struct map *map_groups__new_module(struc if (map == NULL) return NULL; - dso->origin = DSO__ORIG_KMODULE; + if (is_host_kernel(kerninfo)) + dso->origin = DSO__ORIG_KMODULE; + else + dso->origin = DSO__ORIG_GUEST_KMODULE; map_groups__insert(self, map); return map; } -static int map_groups__create_modules(struct map_groups *self) +static int map_groups__create_modules(struct kernel_info *kerninfo) { char *line = NULL; size_t n; - FILE *file = fopen("/proc/modules", "r"); + FILE *file; struct map *map; + const char *root_dir; + const char *modules; + char path[PATH_MAX]; + + if (is_default_guest(kerninfo)) + modules = symbol_conf.default_guest_modules; + else { + sprintf(path, "%s/proc/modules", kerninfo->root_dir); + modules = path; + } + file = fopen(modules, "r"); if (file == NULL) return -1; + root_dir = kerninfo->root_dir; + while (!feof(file)) { char name[PATH_MAX]; u64 start; @@ -1532,16 +1637,17 @@ static int map_groups__create_modules(st *sep = '\0'; snprintf(name, sizeof(name), "[%s]", line); - map = map_groups__new_module(self, start, name); + map = map_groups__new_module(&kerninfo->kmaps, + start, name, kerninfo); if (map == NULL) goto out_delete_line; - dso__kernel_module_get_build_id(map->dso); + dso__kernel_module_get_build_id(map->dso, root_dir); } free(line); fclose(file); - return map_groups__set_modules_path(self); + return map_groups__set_modules_path(&kerninfo->kmaps, root_dir); out_delete_line: free(line); @@ -1708,8 +1814,57 @@ out_fixup: return err; } -LIST_HEAD(dsos__user); -LIST_HEAD(dsos__kernel); +static int dso__load_guest_kernel_sym(struct dso *self, struct map *map, + symbol_filter_t filter) +{ + int err; + const char *kallsyms_filename = NULL; + struct kernel_info *kerninfo; + char path[PATH_MAX]; + + if (!map->groups) { + pr_debug("Guest kernel map hasn't the point to groups\n"); + return -1; + } + kerninfo = map->groups->this_kerninfo; + + if (is_default_guest(kerninfo)) { + /* + * if the user specified a vmlinux filename, use it and only + * it, reporting errors to the user if it cannot be used. + * Or use file guest_kallsyms inputted by user on commandline + */ + if (symbol_conf.default_guest_vmlinux_name != NULL) { + err = dso__load_vmlinux(self, map, + symbol_conf.default_guest_vmlinux_name, filter); + goto out_try_fixup; + } + + kallsyms_filename = symbol_conf.default_guest_kallsyms; + if (!kallsyms_filename) + return -1; + } else { + sprintf(path, "%s/proc/kallsyms", kerninfo->root_dir); + kallsyms_filename = path; + } + + err = dso__load_kallsyms(self, kallsyms_filename, map, filter); + if (err > 0) + pr_debug("Using %s for symbols\n", kallsyms_filename); + +out_try_fixup: + if (err > 0) { + if (kallsyms_filename != NULL) { + kern_mmap_name_parenthese(kerninfo, path); + dso__set_long_name(self, + strdup(path)); + } + map__fixup_start(map); + map__fixup_end(map); + } + + return err; +} static void dsos__add(struct list_head *head, struct dso *dso) { @@ -1752,10 +1907,16 @@ static void __dsos__fprintf(struct list_ } } -void dsos__fprintf(FILE *fp) +void dsos__fprintf(struct rb_root *kerninfo_root, FILE *fp) { - __dsos__fprintf(&dsos__kernel, fp); - __dsos__fprintf(&dsos__user, fp); + struct rb_node *nd; + + for (nd = rb_first(kerninfo_root); nd; nd = rb_next(nd)) { + struct kernel_info *pos = rb_entry(nd, struct kernel_info, + rb_node); + __dsos__fprintf(&pos->dsos__kernel, fp); + __dsos__fprintf(&pos->dsos__user, fp); + } } static size_t __dsos__fprintf_buildid(struct list_head *head, FILE *fp, @@ -1773,10 +1934,21 @@ static size_t __dsos__fprintf_buildid(st return ret; } -size_t dsos__fprintf_buildid(FILE *fp, bool with_hits) +size_t dsos__fprintf_buildid(struct rb_root *kerninfo_root, + FILE *fp, bool with_hits) { - return (__dsos__fprintf_buildid(&dsos__kernel, fp, with_hits) + - __dsos__fprintf_buildid(&dsos__user, fp, with_hits)); + struct rb_node *nd; + size_t ret = 0; + + for (nd = rb_first(kerninfo_root); nd; nd = rb_next(nd)) { + struct kernel_info *pos = rb_entry(nd, struct kernel_info, + rb_node); + ret += __dsos__fprintf_buildid(&pos->dsos__kernel, + fp, with_hits); + ret += __dsos__fprintf_buildid(&pos->dsos__user, + fp, with_hits); + } + return ret; } struct dso *dso__new_kernel(const char *name) @@ -1785,28 +1957,59 @@ struct dso *dso__new_kernel(const char * if (self != NULL) { dso__set_short_name(self, "[kernel]"); - self->kernel = 1; + self->kernel = DSO_TYPE_KERNEL; } return self; } -void dso__read_running_kernel_build_id(struct dso *self) +static struct dso *dso__new_guest_kernel(struct kernel_info *kerninfo, + const char *name) { - if (sysfs__read_build_id("/sys/kernel/notes", self->build_id, + char buff[PATH_MAX]; + struct dso *self; + + kern_mmap_name_parenthese(kerninfo, buff); + self = dso__new(name ?: buff); + if (self != NULL) { + dso__set_short_name(self, "[guest.kernel]"); + self->kernel = DSO_TYPE_GUEST_KERNEL; + } + + return self; +} + +void dso__read_running_kernel_build_id(struct dso *self, + struct kernel_info *kerninfo) +{ + char path[PATH_MAX]; + + if (is_default_guest(kerninfo)) + return; + sprintf(path, "%s/sys/kernel/notes", kerninfo->root_dir); + if (sysfs__read_build_id(path, self->build_id, sizeof(self->build_id)) == 0) self->has_build_id = true; } -static struct dso *dsos__create_kernel(const char *vmlinux) +static struct dso *dsos__create_kernel(struct kernel_info *kerninfo) { - struct dso *kernel = dso__new_kernel(vmlinux); + const char *vmlinux_name = NULL; + struct dso *kernel; - if (kernel != NULL) { - dso__read_running_kernel_build_id(kernel); - dsos__add(&dsos__kernel, kernel); + if (is_host_kernel(kerninfo)) { + vmlinux_name = symbol_conf.vmlinux_name; + kernel = dso__new_kernel(vmlinux_name); + } else { + if (is_default_guest(kerninfo)) + vmlinux_name = symbol_conf.default_guest_vmlinux_name; + kernel = dso__new_guest_kernel(kerninfo, vmlinux_name); } + if (kernel != NULL) { + dso__read_running_kernel_build_id(kernel, kerninfo); + dsos__add(&kerninfo->dsos__kernel, kernel); + } return kernel; } @@ -1950,23 +2153,29 @@ out_free_comm_list: return -1; } -int map_groups__create_kernel_maps(struct map_groups *self, - struct map *vmlinux_maps[MAP__NR_TYPES]) +int map_groups__create_kernel_maps(struct rb_root *kerninfo_root, pid_t pid) { - struct dso *kernel = dsos__create_kernel(symbol_conf.vmlinux_name); + struct kernel_info *kerninfo; + struct dso *kernel; + kerninfo = kerninfo__findnew(kerninfo_root, pid); + if (kerninfo == NULL) + return -1; + kernel = dsos__create_kernel(kerninfo); if (kernel == NULL) return -1; - if (__map_groups__create_kernel_maps(self, vmlinux_maps, kernel) < 0) + if (__map_groups__create_kernel_maps(&kerninfo->kmaps, + kerninfo->vmlinux_maps, kernel) < 0) return -1; - if (symbol_conf.use_modules && map_groups__create_modules(self) < 0) + if (symbol_conf.use_modules && + map_groups__create_modules(kerninfo) < 0) pr_debug("Problems creating module maps, continuing anyway...\n"); /* * Now that we have all the maps created, just set the ->end of them: */ - map_groups__fixup_end(self); + map_groups__fixup_end(&kerninfo->kmaps); return 0; } @@ -2012,3 +2221,47 @@ char *strxfrchar(char *s, char from, cha return s; } + +int map_groups__create_guest_kernel_maps(struct rb_root *kerninfo_root) +{ + int ret = 0; + struct dirent **namelist = NULL; + int i, items = 0; + char path[PATH_MAX]; + pid_t pid; + + if (symbol_conf.default_guest_vmlinux_name || + symbol_conf.default_guest_modules || + symbol_conf.default_guest_kallsyms) { + map_groups__create_kernel_maps(kerninfo_root, + DEFAULT_GUEST_KERNEL_ID); + } + + if (symbol_conf.guestmount) { + items = scandir(symbol_conf.guestmount, &namelist, NULL, NULL); + if (items <= 0) + return -ENOENT; + for (i = 0; i < items; i++) { + if (!isdigit(namelist[i]->d_name[0])) { + /* Filter out . and .. */ + continue; + } + pid = atoi(namelist[i]->d_name); + sprintf(path, "%s/%s/proc/kallsyms", + symbol_conf.guestmount, + namelist[i]->d_name); + ret = access(path, R_OK); + if (ret) { + pr_debug("Can't access file %s\n", path); + goto failure; + } + map_groups__create_kernel_maps(kerninfo_root, + pid); + } +failure: + free(namelist); + } + + return ret; +} + diff -Nraup linux-2.6_tip0413/tools/perf/util/symbol.h linux-2.6_tip0413_perfkvm/tools/perf/util/symbol.h --- linux-2.6_tip0413/tools/perf/util/symbol.h 2010-04-14 11:11:58.766255670 +0800 +++ linux-2.6_tip0413_perfkvm/tools/perf/util/symbol.h 2010-04-16 12:44:29.345307369 +0800 @@ -69,10 +69,15 @@ struct symbol_conf { show_nr_samples, use_callchain, exclude_other, - full_paths; + full_paths, + show_cpu_utilization; const char *vmlinux_name, *field_sep; - char *dso_list_str, + const char *default_guest_vmlinux_name, + *default_guest_kallsyms, + *default_guest_modules; + const char *guestmount; + char *dso_list_str, *comm_list_str, *sym_list_str, *col_width_list_str; @@ -106,6 +111,13 @@ struct addr_location { u64 addr; char level; bool filtered; + unsigned int cpumode; +}; + +enum dso_kernel_type { + DSO_TYPE_USER = 0, + DSO_TYPE_KERNEL, + DSO_TYPE_GUEST_KERNEL }; struct dso { @@ -115,7 +127,7 @@ struct dso { u8 adjust_symbols:1; u8 slen_calculated:1; u8 has_build_id:1; - u8 kernel:1; + enum dso_kernel_type kernel; u8 hit:1; u8 annotate_warned:1; unsigned char origin; @@ -143,34 +155,30 @@ static inline void dso__set_loaded(struc void dso__sort_by_name(struct dso *self, enum map_type type); -extern struct list_head dsos__user, dsos__kernel; - struct dso *__dsos__findnew(struct list_head *head, const char *name); -static inline struct dso *dsos__findnew(const char *name) -{ - return __dsos__findnew(&dsos__user, name); -} - int dso__load(struct dso *self, struct map *map, symbol_filter_t filter); int dso__load_vmlinux_path(struct dso *self, struct map *map, symbol_filter_t filter); int dso__load_kallsyms(struct dso *self, const char *filename, struct map *map, symbol_filter_t filter); -void dsos__fprintf(FILE *fp); -size_t dsos__fprintf_buildid(FILE *fp, bool with_hits); +void dsos__fprintf(struct rb_root *kerninfo_root, FILE *fp); +size_t dsos__fprintf_buildid(struct rb_root *kerninfo_root, + FILE *fp, bool with_hits); size_t dso__fprintf_buildid(struct dso *self, FILE *fp); size_t dso__fprintf(struct dso *self, enum map_type type, FILE *fp); enum dso_origin { DSO__ORIG_KERNEL = 0, + DSO__ORIG_GUEST_KERNEL, DSO__ORIG_JAVA_JIT, DSO__ORIG_BUILD_ID_CACHE, DSO__ORIG_FEDORA, DSO__ORIG_UBUNTU, DSO__ORIG_BUILDID, DSO__ORIG_DSO, + DSO__ORIG_GUEST_KMODULE, DSO__ORIG_KMODULE, DSO__ORIG_NOT_FOUND, }; @@ -178,19 +186,26 @@ enum dso_origin { char dso__symtab_origin(const struct dso *self); void dso__set_long_name(struct dso *self, char *name); void dso__set_build_id(struct dso *self, void *build_id); -void dso__read_running_kernel_build_id(struct dso *self); +void dso__read_running_kernel_build_id(struct dso *self, + struct kernel_info *kerninfo); struct symbol *dso__find_symbol(struct dso *self, enum map_type type, u64 addr); struct symbol *dso__find_symbol_by_name(struct dso *self, enum map_type type, const char *name); int filename__read_build_id(const char *filename, void *bf, size_t size); int sysfs__read_build_id(const char *filename, void *bf, size_t size); -bool dsos__read_build_ids(bool with_hits); +bool __dsos__read_build_ids(struct list_head *head, bool with_hits); int build_id__sprintf(const u8 *self, int len, char *bf); int kallsyms__parse(const char *filename, void *arg, int (*process_symbol)(void *arg, const char *name, char type, u64 start)); +int __map_groups__create_kernel_maps(struct map_groups *self, + struct map *vmlinux_maps[MAP__NR_TYPES], + struct dso *kernel); +int map_groups__create_kernel_maps(struct rb_root *kerninfo_root, pid_t pid); +int map_groups__create_guest_kernel_maps(struct rb_root *kerninfo_root); + int symbol__init(void); bool symbol_type__is_a(char symbol_type, enum map_type map_type); diff -Nraup linux-2.6_tip0413/tools/perf/util/thread.h linux-2.6_tip0413_perfkvm/tools/perf/util/thread.h --- linux-2.6_tip0413/tools/perf/util/thread.h 2010-04-14 11:11:58.594236160 +0800 +++ linux-2.6_tip0413_perfkvm/tools/perf/util/thread.h 2010-04-14 11:13:17.321860837 +0800 @@ -33,12 +33,12 @@ static inline struct map *thread__find_m void thread__find_addr_map(struct thread *self, struct perf_session *session, u8 cpumode, - enum map_type type, u64 addr, + enum map_type type, pid_t pid, u64 addr, struct addr_location *al); void thread__find_addr_location(struct thread *self, struct perf_session *session, u8 cpumode, - enum map_type type, u64 addr, + enum map_type type, pid_t pid, u64 addr, struct addr_location *al, symbol_filter_t filter); #endif /* __PERF_THREAD_H */