diff options
author | Ian Rogers <[email protected]> | 2023-04-28 00:37:27 -0700 |
---|---|---|
committer | Arnaldo Carvalho de Melo <[email protected]> | 2023-04-28 22:19:59 -0300 |
commit | 06bff3d98cf2cfef225f8190bb679f3f8cb89912 (patch) | |
tree | 3e074b2c64d958f020d0f2d0758fc6619fa4add3 | |
parent | 0463ca3d7159bb86efa6f36ca70a41bb711bc6f8 (diff) |
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 <[email protected]>
Signed-off-by: Ian Rogers <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Ahmad Yasin <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: Athira Rajeev <[email protected]>
Cc: Caleb Biggers <[email protected]>
Cc: Edward Baker <[email protected]>
Cc: Florian Fischer <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: James Clark <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: John Garry <[email protected]>
Cc: Kajol Jain <[email protected]>
Cc: Kang Minchul <[email protected]>
Cc: Leo Yan <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Perry Taylor <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Ravi Bangoria <[email protected]>
Cc: Rob Herring <[email protected]>
Cc: Samantha Alt <[email protected]>
Cc: Stephane Eranian <[email protected]>
Cc: Sumanth Korikkar <[email protected]>
Cc: Suzuki Poulouse <[email protected]>
Cc: Thomas Richter <[email protected]>
Cc: Tiezhu Yang <[email protected]>
Cc: Weilin Wang <[email protected]>
Cc: Xing Zhengjun <[email protected]>
Cc: Yang Jihong <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
-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/[email protected]/ + */ + 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; |