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authorIan Rogers <irogers@google.com>2023-02-19 12:28:35 +0300
committerArnaldo Carvalho de Melo <acme@redhat.com>2023-02-19 14:07:15 +0300
commit1fd09e299bdd434b259da3ffcfdcae2dfeac9b2e (patch)
treeaeffa102950627541b3b3c94022d137608d5d12c /tools/perf/builtin-stat.c
parent798029341baf398b519591f2bba897b08e4cdc27 (diff)
downloadlinux-1fd09e299bdd434b259da3ffcfdcae2dfeac9b2e.tar.xz
perf metric: Add --metric-no-threshold option
Thresholds may need additional events, this can impact things like sharing groups of events to avoid multiplexing. Add a flag to make the threshold calculations optional. The threshold will still be computed if no additional events are necessary. Signed-off-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Alexandre Torgue <alexandre.torgue@foss.st.com> Cc: Andrii Nakryiko <andrii@kernel.org> Cc: Athira Rajeev <atrajeev@linux.vnet.ibm.com> Cc: Caleb Biggers <caleb.biggers@intel.com> Cc: Eduard Zingerman <eddyz87@gmail.com> Cc: Florian Fischer <florian.fischer@muhq.space> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@arm.com> Cc: Jing Zhang <renyu.zj@linux.alibaba.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: John Garry <john.g.garry@oracle.com> Cc: Kajol Jain <kjain@linux.ibm.com> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Leo Yan <leo.yan@linaro.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Maxime Coquelin <mcoquelin.stm32@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Perry Taylor <perry.taylor@intel.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Ravi Bangoria <ravi.bangoria@amd.com> Cc: Sandipan Das <sandipan.das@amd.com> Cc: Sean Christopherson <seanjc@google.com> Cc: Stephane Eranian <eranian@google.com> Cc: Suzuki Poulouse <suzuki.poulose@arm.com> Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com> Cc: linux-arm-kernel@lists.infradead.org Cc: linux-stm32@st-md-mailman.stormreply.com Link: https://lore.kernel.org/r/20230219092848.639226-39-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/builtin-stat.c')
-rw-r--r--tools/perf/builtin-stat.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c
index 5d18a5a6f662..5e13171a7bba 100644
--- a/tools/perf/builtin-stat.c
+++ b/tools/perf/builtin-stat.c
@@ -1256,6 +1256,8 @@ static struct option stat_options[] = {
"don't group metric events, impacts multiplexing"),
OPT_BOOLEAN(0, "metric-no-merge", &stat_config.metric_no_merge,
"don't try to share events between metrics in a group"),
+ OPT_BOOLEAN(0, "metric-no-threshold", &stat_config.metric_no_threshold,
+ "don't try to share events between metrics in a group "),
OPT_BOOLEAN(0, "topdown", &topdown_run,
"measure top-down statistics"),
OPT_UINTEGER(0, "td-level", &stat_config.topdown_level,
@@ -1852,6 +1854,7 @@ static int add_default_attributes(void)
return metricgroup__parse_groups(evsel_list, "transaction",
stat_config.metric_no_group,
stat_config.metric_no_merge,
+ stat_config.metric_no_threshold,
stat_config.user_requested_cpu_list,
stat_config.system_wide,
&stat_config.metric_events);
@@ -2519,6 +2522,7 @@ int cmd_stat(int argc, const char **argv)
metricgroup__parse_groups(evsel_list, metrics,
stat_config.metric_no_group,
stat_config.metric_no_merge,
+ stat_config.metric_no_threshold,
stat_config.user_requested_cpu_list,
stat_config.system_wide,
&stat_config.metric_events);