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perf stat: Do not open cgroups for BPF counters

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The --bpf-counters and --for-each-cgroup options use a set of shared
events among the given cgroups rather than adding events for each cgroup
respectively.  It only uses cgroup-ID to compare and calculate the
result.  So no need to open and keep FDs for cgroups in BPF mode.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
This commit is contained in:
Namhyung Kim 2026-07-08 13:04:07 -07:00
parent eadce0f46a
commit 3f7909fa92
1 changed files with 2 additions and 1 deletions
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3
tools/perf/builtin-stat.c
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@ -2895,7 +2895,8 @@ int cmd_stat(int argc, const char **argv)
goto out;
}
if (evlist__expand_cgroup(evsel_list, stat_config.cgroup_list, true) < 0) {
if (evlist__expand_cgroup(evsel_list, stat_config.cgroup_list,
!target.use_bpf) < 0) {
parse_options_usage(stat_usage, stat_options,
"for-each-cgroup", 0);
goto out;