| Message ID | 20240705084047.857176-22-alex.bennee@linaro.org (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | July maintainer updates (32bit, testing, plugins, gdbstub) | expand |
On Fri, 5 Jul 2024 at 11:49, Alex Bennée <alex.bennee@linaro.org> wrote: > > While the match functionality is useful lets make the verbosity > optional while we are actually running. > > Signed-off-by: Alex Bennée <alex.bennee@linaro.org> > --- > tests/plugin/insn.c | 36 +++++++++++++++++++++--------------- > 1 file changed, 21 insertions(+), 15 deletions(-) > > diff --git a/tests/plugin/insn.c b/tests/plugin/insn.c > index 5e0aa03223..524f9ddde8 100644 > --- a/tests/plugin/insn.c > +++ b/tests/plugin/insn.c > @@ -20,6 +20,7 @@ static qemu_plugin_u64 insn_count; > > static bool do_inline; > static bool do_size; > +static bool do_trace; > static GArray *sizes; > > typedef struct { > @@ -73,30 +74,30 @@ static void vcpu_insn_matched_exec_before(unsigned int cpu_index, void *udata) > MatchCount *match = qemu_plugin_scoreboard_find(insn_match->counts, > cpu_index); > > - g_autoptr(GString) ts = g_string_new(""); > - > insn->hits++; > - g_string_append_printf(ts, "0x%" PRIx64 ", '%s', %"PRId64 " hits", > - insn->vaddr, insn->disas, insn->hits); > > uint64_t icount = qemu_plugin_u64_get(insn_count, cpu_index); > uint64_t delta = icount - match->last_hit; > > match->hits++; > match->total_delta += delta; > - > - g_string_append_printf(ts, > - " , cpu %u," > - " %"PRId64" match hits," > - " Δ+%"PRId64 " since last match," > - " %"PRId64 " avg insns/match\n", > - cpu_index, > - match->hits, delta, > - match->total_delta / match->hits); > - > match->last_hit = icount; > > - qemu_plugin_outs(ts->str); > + if (do_trace) { > + g_autoptr(GString) ts = g_string_new(""); > + g_string_append_printf(ts, "0x%" PRIx64 ", '%s', %"PRId64 " hits", > + insn->vaddr, insn->disas, insn->hits); > + g_string_append_printf(ts, > + " , cpu %u," > + " %"PRId64" match hits," > + " Δ+%"PRId64 " since last match," > + " %"PRId64 " avg insns/match\n", > + cpu_index, > + match->hits, delta, > + match->total_delta / match->hits); > + > + qemu_plugin_outs(ts->str); > + } > } > > static void vcpu_tb_trans(qemu_plugin_id_t id, struct qemu_plugin_tb *tb) > @@ -216,6 +217,11 @@ QEMU_PLUGIN_EXPORT int qemu_plugin_install(qemu_plugin_id_t id, > } > } else if (g_strcmp0(tokens[0], "match") == 0) { > parse_match(tokens[1]); > + } else if (g_strcmp0(tokens[0], "trace") == 0) { > + if (!qemu_plugin_bool_parse(tokens[0], tokens[1], &do_trace)) { > + fprintf(stderr, "boolean argument parsing failed: %s\n", opt); > + return -1; > + } > } else { > fprintf(stderr, "option parsing failed: %s\n", opt); > return -1; > -- > 2.39.2 > > Reviewed-by: Manos Pitsidianakis <manos.pitsidianakis@linaro.org>
diff --git a/tests/plugin/insn.c b/tests/plugin/insn.c index 5e0aa03223..524f9ddde8 100644 --- a/tests/plugin/insn.c +++ b/tests/plugin/insn.c @@ -20,6 +20,7 @@ static qemu_plugin_u64 insn_count; static bool do_inline; static bool do_size; +static bool do_trace; static GArray *sizes; typedef struct { @@ -73,30 +74,30 @@ static void vcpu_insn_matched_exec_before(unsigned int cpu_index, void *udata) MatchCount *match = qemu_plugin_scoreboard_find(insn_match->counts, cpu_index); - g_autoptr(GString) ts = g_string_new(""); - insn->hits++; - g_string_append_printf(ts, "0x%" PRIx64 ", '%s', %"PRId64 " hits", - insn->vaddr, insn->disas, insn->hits); uint64_t icount = qemu_plugin_u64_get(insn_count, cpu_index); uint64_t delta = icount - match->last_hit; match->hits++; match->total_delta += delta; - - g_string_append_printf(ts, - " , cpu %u," - " %"PRId64" match hits," - " Δ+%"PRId64 " since last match," - " %"PRId64 " avg insns/match\n", - cpu_index, - match->hits, delta, - match->total_delta / match->hits); - match->last_hit = icount; - qemu_plugin_outs(ts->str); + if (do_trace) { + g_autoptr(GString) ts = g_string_new(""); + g_string_append_printf(ts, "0x%" PRIx64 ", '%s', %"PRId64 " hits", + insn->vaddr, insn->disas, insn->hits); + g_string_append_printf(ts, + " , cpu %u," + " %"PRId64" match hits," + " Δ+%"PRId64 " since last match," + " %"PRId64 " avg insns/match\n", + cpu_index, + match->hits, delta, + match->total_delta / match->hits); + + qemu_plugin_outs(ts->str); + } } static void vcpu_tb_trans(qemu_plugin_id_t id, struct qemu_plugin_tb *tb) @@ -216,6 +217,11 @@ QEMU_PLUGIN_EXPORT int qemu_plugin_install(qemu_plugin_id_t id, } } else if (g_strcmp0(tokens[0], "match") == 0) { parse_match(tokens[1]); + } else if (g_strcmp0(tokens[0], "trace") == 0) { + if (!qemu_plugin_bool_parse(tokens[0], tokens[1], &do_trace)) { + fprintf(stderr, "boolean argument parsing failed: %s\n", opt); + return -1; + } } else { fprintf(stderr, "option parsing failed: %s\n", opt); return -1;
While the match functionality is useful lets make the verbosity optional while we are actually running. Signed-off-by: Alex Bennée <alex.bennee@linaro.org> --- tests/plugin/insn.c | 36 +++++++++++++++++++++--------------- 1 file changed, 21 insertions(+), 15 deletions(-)