summaryrefslogtreecommitdiff
path: root/tools/perf/builtin-record.c
diff options
context:
space:
mode:
authorIan Rogers <irogers@google.com>2023-03-12 05:15:42 +0300
committerArnaldo Carvalho de Melo <acme@redhat.com>2023-03-13 23:42:27 +0300
commit9d2dc632e09c0fe3a8a5890845bbd65b211fd662 (patch)
tree1e3cc0cce57204247e835fbe7b724ffc2cf9e535 /tools/perf/builtin-record.c
parente733f87e8c77751a00a538627eab1ac05e77cf0d (diff)
downloadlinux-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/builtin-record.c')
-rw-r--r--tools/perf/builtin-record.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
index fb8aab0cedd0..74388164a571 100644
--- a/tools/perf/builtin-record.c
+++ b/tools/perf/builtin-record.c
@@ -2474,7 +2474,7 @@ static int __cmd_record(struct record *rec, int argc, const char **argv)
rec->tool.ordered_events = false;
}
- if (!rec->evlist->core.nr_groups)
+ if (evlist__nr_groups(rec->evlist) == 0)
perf_header__clear_feat(&session->header, HEADER_GROUP_DESC);
if (data->is_pipe) {