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>
1 file changed