From patchwork Wed Apr 12 13:21:10 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Ilpo_J=C3=A4rvinen?= X-Patchwork-Id: 13209180 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id E2375C77B72 for ; Wed, 12 Apr 2023 13:23:34 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230007AbjDLNXd (ORCPT ); Wed, 12 Apr 2023 09:23:33 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48918 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230081AbjDLNXP (ORCPT ); Wed, 12 Apr 2023 09:23:15 -0400 Received: from mga02.intel.com (mga02.intel.com [134.134.136.20]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 848E1AD07; Wed, 12 Apr 2023 06:22:48 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1681305768; x=1712841768; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=v4QSfgm5ssb+0BWfSMGbHbevOrxP3fBmhG1mtfeJpbE=; b=Veq9xXFaR4NDfADuIxIl9e3wXMOPO6GK2VCoo7q0VLYQxf7Qww0cqOUj LaESRtQLxwmrq1WphrgGZDfyu90EkaBoN7i8cYhYEP/z99YPinRUgmd2F LywgE6E7lcjbSf/8+5lVgfW32LvpXeHWzUlPjNoMqnelZOlmwGIodau/U F29HSnFumXQWIfkXvtkq8bywvoeiQcPpCjDHJTC+f3/+8aPuL1lHk/9kY cvvnDAlPVesmULelATsZpmOylB9RR3vsdBKWAtpS3B0tlwgYCSK+JkR4H XsdxlmSeskiyLaAat8yFXIuQfeZHLnJBiHEZG6XXg0NkPRCOM5MxD1xdG Q==; X-IronPort-AV: E=McAfee;i="6600,9927,10678"; a="332590147" X-IronPort-AV: E=Sophos;i="5.98,339,1673942400"; d="scan'208";a="332590147" Received: from orsmga003.jf.intel.com ([10.7.209.27]) by orsmga101.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 12 Apr 2023 06:22:16 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10678"; a="639230072" X-IronPort-AV: E=Sophos;i="5.98,339,1673942400"; d="scan'208";a="639230072" Received: from chanse1-mobl2.ger.corp.intel.com (HELO ijarvine-MOBL2.ger.corp.intel.com) ([10.251.213.80]) by orsmga003-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 12 Apr 2023 06:22:14 -0700 From: =?utf-8?q?Ilpo_J=C3=A4rvinen?= To: linux-kselftest@vger.kernel.org, linux-kernel@vger.kernel.org, Reinette Chatre , Fenghua Yu , Shuah Khan Cc: Shaopeng Tan , =?utf-8?q?Ilpo_J=C3=A4rvinen?= Subject: [PATCH 10/22] selftests/resctrl: Don't pass test name to fill_buf Date: Wed, 12 Apr 2023 16:21:10 +0300 Message-Id: <20230412132122.29452-11-ilpo.jarvinen@linux.intel.com> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20230412132122.29452-1-ilpo.jarvinen@linux.intel.com> References: <20230412132122.29452-1-ilpo.jarvinen@linux.intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-kselftest@vger.kernel.org Test name is passed to fill_buf functions so that they can loop around buffer only once. This is required for CAT test case. To loop around buffer only once, we don't need to let fill_buf know which test case it is. Instead, use a boolean argument 'once' which makes fill_buf more generic. As the benchmark_cmd no longer needs to include the test name, a few test running functions can be simplified to not write the test name into the default benchmark_cmd which allows dropping has_ben argument from the functions too. Co-developed-by: Fenghua Yu Signed-off-by: Fenghua Yu Signed-off-by: Ilpo Järvinen --- tools/testing/selftests/resctrl/cache.c | 3 +-- tools/testing/selftests/resctrl/fill_buf.c | 22 +++++++++---------- tools/testing/selftests/resctrl/resctrl.h | 4 ++-- .../testing/selftests/resctrl/resctrl_tests.c | 14 +++++------- tools/testing/selftests/resctrl/resctrlfs.c | 11 +++++++--- 5 files changed, 27 insertions(+), 27 deletions(-) diff --git a/tools/testing/selftests/resctrl/cache.c b/tools/testing/selftests/resctrl/cache.c index ed5ec8a78c30..a15f1f2715cd 100644 --- a/tools/testing/selftests/resctrl/cache.c +++ b/tools/testing/selftests/resctrl/cache.c @@ -249,8 +249,7 @@ int cat_val(struct resctrl_val_param *param) if (ret) break; - if (run_fill_buf(param->span, memflush, operation, - resctrl_val)) { + if (run_fill_buf(param->span, memflush, operation, true)) { fprintf(stderr, "Error-running fill buffer\n"); ret = -1; break; diff --git a/tools/testing/selftests/resctrl/fill_buf.c b/tools/testing/selftests/resctrl/fill_buf.c index c815c80f7a0c..f5ca0c573891 100644 --- a/tools/testing/selftests/resctrl/fill_buf.c +++ b/tools/testing/selftests/resctrl/fill_buf.c @@ -116,14 +116,14 @@ void fill_one_span_write(unsigned char *start_ptr, unsigned char *end_ptr) } static int fill_cache_read(unsigned char *start_ptr, unsigned char *end_ptr, - char *resctrl_val) + bool once) { int ret = 0; FILE *fp; while (1) { ret = fill_one_span_read(start_ptr, end_ptr); - if (!strncmp(resctrl_val, CAT_STR, sizeof(CAT_STR))) + if (once) break; } @@ -140,11 +140,11 @@ static int fill_cache_read(unsigned char *start_ptr, unsigned char *end_ptr, } static int fill_cache_write(unsigned char *start_ptr, unsigned char *end_ptr, - char *resctrl_val) + bool once) { while (1) { fill_one_span_write(start_ptr, end_ptr); - if (!strncmp(resctrl_val, CAT_STR, sizeof(CAT_STR))) + if (once) break; } @@ -164,16 +164,16 @@ int alloc_buffer(unsigned long long buf_size, int memflush) return 0; } -int use_buffer(unsigned long long buf_size, int op, char *resctrl_val) +int use_buffer(unsigned long long buf_size, int op, bool once) { unsigned char *end_ptr; int ret; end_ptr = startptr + buf_size; if (op == 0) - ret = fill_cache_read(startptr, end_ptr, resctrl_val); + ret = fill_cache_read(startptr, end_ptr, once); else - ret = fill_cache_write(startptr, end_ptr, resctrl_val); + ret = fill_cache_write(startptr, end_ptr, once); if (ret) printf("\n Error in fill cache read/write...\n"); @@ -182,7 +182,7 @@ int use_buffer(unsigned long long buf_size, int op, char *resctrl_val) } static int -fill_cache(unsigned long long buf_size, int memflush, int op, char *resctrl_val) +fill_cache(unsigned long long buf_size, int memflush, int op, bool once) { int ret; @@ -190,13 +190,13 @@ fill_cache(unsigned long long buf_size, int memflush, int op, char *resctrl_val) if (ret) return ret; - ret = use_buffer(buf_size, op, resctrl_val); + ret = use_buffer(buf_size, op, once); free_buffer(); return ret; } -int run_fill_buf(unsigned long span, int memflush, int op, char *resctrl_val) +int run_fill_buf(unsigned long span, int memflush, int op, bool once) { unsigned long long cache_size = span; int ret; @@ -207,7 +207,7 @@ int run_fill_buf(unsigned long span, int memflush, int op, char *resctrl_val) if (signal(SIGHUP, ctrl_handler) == SIG_ERR) printf("Failed to catch SIGHUP!\n"); - ret = fill_cache(cache_size, memflush, op, resctrl_val); + ret = fill_cache(cache_size, memflush, op, once); if (ret) { printf("\n Error in fill cache\n"); return -1; diff --git a/tools/testing/selftests/resctrl/resctrl.h b/tools/testing/selftests/resctrl/resctrl.h index 16876ac00bf1..968ac2a321ff 100644 --- a/tools/testing/selftests/resctrl/resctrl.h +++ b/tools/testing/selftests/resctrl/resctrl.h @@ -99,8 +99,8 @@ int perf_event_open(struct perf_event_attr *hw_event, pid_t pid, int cpu, int group_fd, unsigned long flags); void free_buffer(void); int alloc_buffer(unsigned long long buf_size, int memflush); -int use_buffer(unsigned long long buf_size, int op, char *resctrl_val); -int run_fill_buf(unsigned long span, int memflush, int op, char *resctrl_val); +int use_buffer(unsigned long long buf_size, int op, bool once); +int run_fill_buf(unsigned long span, int memflush, int op, bool once); int resctrl_val(char **benchmark_cmd, struct resctrl_val_param *param); int mbm_bw_change(unsigned long span, int cpu_no, char *bw_report, char **benchmark_cmd); void tests_cleanup(void); diff --git a/tools/testing/selftests/resctrl/resctrl_tests.c b/tools/testing/selftests/resctrl/resctrl_tests.c index c80783ca5be3..a967525182d2 100644 --- a/tools/testing/selftests/resctrl/resctrl_tests.c +++ b/tools/testing/selftests/resctrl/resctrl_tests.c @@ -70,7 +70,7 @@ void tests_cleanup(void) cat_test_cleanup(); } -static void run_mbm_test(bool has_ben, char **benchmark_cmd, unsigned long span, +static void run_mbm_test(char **benchmark_cmd, unsigned long span, int cpu_no, char *bw_report) { int res; @@ -82,8 +82,6 @@ static void run_mbm_test(bool has_ben, char **benchmark_cmd, unsigned long span, return; } - if (!has_ben) - sprintf(benchmark_cmd[4], "%s", MBA_STR); res = mbm_bw_change(span, cpu_no, bw_report, benchmark_cmd); ksft_test_result(!res, "MBM: bw change\n"); if ((get_vendor() == ARCH_INTEL) && res) @@ -108,7 +106,7 @@ static void run_mba_test(char **benchmark_cmd, unsigned long span, int cpu_no, mba_test_cleanup(); } -static void run_cmt_test(bool has_ben, char **benchmark_cmd, int cpu_no) +static void run_cmt_test(char **benchmark_cmd, int cpu_no) { int res; @@ -118,8 +116,6 @@ static void run_cmt_test(bool has_ben, char **benchmark_cmd, int cpu_no) return; } - if (!has_ben) - sprintf(benchmark_cmd[4], "%s", CMT_STR); res = cmt_resctrl_val(cpu_no, 5, benchmark_cmd); ksft_test_result(!res, "CMT: test\n"); if ((get_vendor() == ARCH_INTEL) && res) @@ -242,7 +238,7 @@ int main(int argc, char **argv) sprintf(benchmark_cmd[1], "%lu", span); strcpy(benchmark_cmd[2], "1"); strcpy(benchmark_cmd[3], "0"); - strcpy(benchmark_cmd[4], ""); + strcpy(benchmark_cmd[4], "false"); benchmark_cmd[5] = NULL; } @@ -257,13 +253,13 @@ int main(int argc, char **argv) ksft_set_plan(tests ? : 4); if ((get_vendor() == ARCH_INTEL) && mbm_test) - run_mbm_test(has_ben, benchmark_cmd, span, cpu_no, bw_report); + run_mbm_test(benchmark_cmd, span, cpu_no, bw_report); if ((get_vendor() == ARCH_INTEL) && mba_test) run_mba_test(benchmark_cmd, span, cpu_no, bw_report); if (cmt_test) - run_cmt_test(has_ben, benchmark_cmd, cpu_no); + run_cmt_test(benchmark_cmd, cpu_no); if (cat_test) run_cat_test(cpu_no, no_of_bits); diff --git a/tools/testing/selftests/resctrl/resctrlfs.c b/tools/testing/selftests/resctrl/resctrlfs.c index 1864911c2556..a63479f94a3e 100644 --- a/tools/testing/selftests/resctrl/resctrlfs.c +++ b/tools/testing/selftests/resctrl/resctrlfs.c @@ -308,7 +308,7 @@ void run_benchmark(int signum, siginfo_t *info, void *ucontext) int operation, ret, memflush; unsigned long span; char **benchmark_cmd; - char resctrl_val[64]; + bool once; FILE *fp; benchmark_cmd = info->si_ptr; @@ -326,9 +326,14 @@ void run_benchmark(int signum, siginfo_t *info, void *ucontext) span = strtoul(benchmark_cmd[1], NULL, 10); memflush = atoi(benchmark_cmd[2]); operation = atoi(benchmark_cmd[3]); - sprintf(resctrl_val, "%s", benchmark_cmd[4]); + if (!strcmp(benchmark_cmd[4], "true")) + once = true; + else if (!strcmp(benchmark_cmd[4], "false")) + once = false; + else + PARENT_EXIT("Invalid once parameter"); - if (run_fill_buf(span, memflush, operation, resctrl_val)) + if (run_fill_buf(span, memflush, operation, once)) fprintf(stderr, "Error in running fill buffer\n"); } else { /* Execute specified benchmark */