diff options
| author | Ian Rogers <irogers@google.com> | 2023-03-12 05:15:42 +0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2023-03-13 23:42:27 +0300 |
| commit | 9d2dc632e09c0fe3a8a5890845bbd65b211fd662 (patch) | |
| tree | 1e3cc0cce57204247e835fbe7b724ffc2cf9e535 /tools/perf/util/pfm.c | |
| parent | e733f87e8c77751a00a538627eab1ac05e77cf0d (diff) | |
| download | linux-9d2dc632e09c0fe3a8a5890845bbd65b211fd662.tar.xz | |
perf evlist: Remove nr_groups
Maintaining the number of groups during event parsing is problematic
and since changing to sort/regroup events can only be computed by a
linear pass over the evlist. As the value is generally only used in
tests, rather than hold it in a variable compute it by passing over
the evlist when necessary.
This change highlights that libpfm's counting of groups with a single
entry disagreed with regular event parsing. The libpfm tests are
updated accordingly.
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.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: Kan Liang <kan.liang@linux.intel.com>
Cc: Kim Phillips <kim.phillips@amd.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ravi Bangoria <ravi.bangoria@amd.com>
Cc: Sean Christopherson <seanjc@google.com>
Cc: Steinar H. Gunderson <sesse@google.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: Suzuki Poulouse <suzuki.poulose@arm.com>
Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com>
Link: https://lore.kernel.org/r/20230312021543.3060328-2-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/pfm.c')
| -rw-r--r-- | tools/perf/util/pfm.c | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/tools/perf/util/pfm.c b/tools/perf/util/pfm.c index b59ba825ddc9..6c11914c179f 100644 --- a/tools/perf/util/pfm.c +++ b/tools/perf/util/pfm.c @@ -112,7 +112,6 @@ int parse_libpfm_events_option(const struct option *opt, const char *str, "cannot close a non-existing event group\n"); goto error; } - evlist->core.nr_groups++; grp_leader = NULL; grp_evt = -1; } |