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authorJiri Olsa <jolsa@kernel.org>2015-11-05 15:40:53 +0100
committerArnaldo Carvalho de Melo <acme@redhat.com>2015-12-17 16:00:32 -0300
commite9d6db8e8df42a38f79f264ab58c104e1678b12c (patch)
tree81f999919f4edd5fe5bc7479ba869d7ed0f586c4 /tools/perf/builtin-stat.c
parent7aad0c32bb6aaa39aab596264ddc49d44c8088f3 (diff)
downloadlinux-e9d6db8e8df42a38f79f264ab58c104e1678b12c.tar.gz
perf stat record: Do not allow record with multiple runs mode
We currently don't support storing multiple session in perf.data, so we can't allow -r option in stat record. $ perf stat -e cycles -r 2 record ls Cannot use -r option with perf stat record. Committer note: Before this patch we would a perf.data file such as: $ perf stat -e cycles -r 2 record ls <SNIP> Performance counter stats for 'ls' (2 runs): 3,935,236 cycles 0.002353261 seconds time elapsed ( +- 4.76% ) $ perf report -D | grep PERF_RECORD | grep ROUND 0xf0 [0]: failed to process type: 16 Error: failed to process sample $ Reported-by: Kan Liang <kan.liang@intel.com> Signed-off-by: Jiri Olsa <jolsa@kernel.org> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: David Ahern <dsahern@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1446734469-11352-10-git-send-email-jolsa@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.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c
index fcece42c2611..10f86a6d7b15 100644
--- a/tools/perf/builtin-stat.c
+++ b/tools/perf/builtin-stat.c
@@ -1449,6 +1449,11 @@ static int __cmd_record(int argc, const char **argv)
if (output_name)
file->path = output_name;
+ if (run_count != 1 || forever) {
+ pr_err("Cannot use -r option with perf stat record.\n");
+ return -1;
+ }
+
session = perf_session__new(file, false, NULL);
if (session == NULL) {
pr_err("Perf session creation failed.\n");