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| author | Namhyung Kim <namhyung@kernel.org> | 2021-08-30 10:02:00 -0700 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2021-08-30 18:22:23 -0300 |
| commit | 1c02f6c9043e9a6f359278cc2f17b4283ac0bd67 (patch) | |
| tree | 48155858a50738238d3935e93d8c474f5ba23132 /tools/perf/builtin-stat.c | |
| parent | a32762b864f889cff884249c1273819bb79a05bb (diff) | |
| download | linux-1c02f6c9043e9a6f359278cc2f17b4283ac0bd67.tar.bz2 | |
perf stat: Do not allow --for-each-cgroup without cpu
The cgroup mode should work with cpu events. Warn if --for-each-cgroup
option is used with a task target like existing -G option.
# perf stat --for-each-cgroup . sleep 1
both cgroup and no-aggregation modes only available in system-wide mode
Usage: perf stat [<options>] [<command>]
-G, --cgroup <name> monitor event in cgroup name only
-A, --no-aggr disable CPU count aggregation
-a, --all-cpus system-wide collection from all CPUs
--for-each-cgroup <name>
expand events for each cgroup
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/20210830170200.55652-1-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/builtin-stat.c')
| -rw-r--r-- | tools/perf/builtin-stat.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c index f4253ba26c3f..f6e87b7be5fa 100644 --- a/tools/perf/builtin-stat.c +++ b/tools/perf/builtin-stat.c @@ -2386,7 +2386,8 @@ int cmd_stat(int argc, const char **argv) * --per-thread is aggregated per thread, we dont mix it with cpu mode */ if (((stat_config.aggr_mode != AGGR_GLOBAL && - stat_config.aggr_mode != AGGR_THREAD) || nr_cgroups) && + stat_config.aggr_mode != AGGR_THREAD) || + (nr_cgroups || stat_config.cgroup_list)) && !target__has_cpu(&target)) { fprintf(stderr, "both cgroup and no-aggregation " "modes only available in system-wide mode\n"); @@ -2394,6 +2395,7 @@ int cmd_stat(int argc, const char **argv) parse_options_usage(stat_usage, stat_options, "G", 1); parse_options_usage(NULL, stat_options, "A", 1); parse_options_usage(NULL, stat_options, "a", 1); + parse_options_usage(NULL, stat_options, "for-each-cgroup", 0); goto out; } |