diff options
| author | Ian Rogers <irogers@google.com> | 2023-04-28 09:37:27 +0200 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2023-04-29 03:19:59 +0200 |
| commit | 06bff3d98cf2cfef225f8190bb679f3f8cb89912 (patch) | |
| tree | 3e074b2c64d958f020d0f2d0758fc6619fa4add3 | |
| parent | perf stat: Avoid SEGV on counter->name (diff) | |
| download | linux-06bff3d98cf2cfef225f8190bb679f3f8cb89912.tar.xz linux-06bff3d98cf2cfef225f8190bb679f3f8cb89912.zip | |
perf stat: Disable TopdownL1 on hybrid
Bugs with event parsing, event grouping and metrics causes the
TopdownL1 metricgroup to crash the perf command. Temporarily disable
the group if no events/metrics are spcecified.
Reviewed-by: Kan Liang <kan.liang@linux.intel.com>
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ahmad Yasin <ahmad.yasin@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Athira Rajeev <atrajeev@linux.vnet.ibm.com>
Cc: Caleb Biggers <caleb.biggers@intel.com>
Cc: Edward Baker <edward.baker@intel.com>
Cc: Florian Fischer <florian.fischer@muhq.space>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: John Garry <john.g.garry@oracle.com>
Cc: Kajol Jain <kjain@linux.ibm.com>
Cc: Kang Minchul <tegongkang@gmail.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.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: Rob Herring <robh@kernel.org>
Cc: Samantha Alt <samantha.alt@intel.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: Sumanth Korikkar <sumanthk@linux.ibm.com>
Cc: Suzuki Poulouse <suzuki.poulose@arm.com>
Cc: Thomas Richter <tmricht@linux.ibm.com>
Cc: Tiezhu Yang <yangtiezhu@loongson.cn>
Cc: Weilin Wang <weilin.wang@intel.com>
Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com>
Cc: Yang Jihong <yangjihong1@huawei.com>
Link: https://lore.kernel.org/r/20230428073809.1803624-2-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
| -rw-r--r-- | tools/perf/builtin-stat.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c index efda63f6bf32..be9677aa642f 100644 --- a/tools/perf/builtin-stat.c +++ b/tools/perf/builtin-stat.c @@ -1885,7 +1885,12 @@ static int add_default_attributes(void) * Add TopdownL1 metrics if they exist. To minimize * multiplexing, don't request threshold computation. */ - if (metricgroup__has_metric("TopdownL1") && + /* + * TODO: TopdownL1 is disabled on hybrid CPUs to avoid a crashes + * caused by exposing latent bugs. This is fixed properly in: + * https://lore.kernel.org/lkml/bff481ba-e60a-763f-0aa0-3ee53302c480@linux.intel.com/ + */ + if (metricgroup__has_metric("TopdownL1") && !perf_pmu__has_hybrid() && metricgroup__parse_groups(evsel_list, "TopdownL1", /*metric_no_group=*/false, /*metric_no_merge=*/false, @@ -1894,6 +1899,7 @@ static int add_default_attributes(void) stat_config.system_wide, &stat_config.metric_events) < 0) return -1; + /* Platform specific attrs */ if (evlist__add_default_attrs(evsel_list, default_null_attrs) < 0) return -1; |