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author | Arnaldo Carvalho de Melo <acme@redhat.com> | 2013-12-28 15:45:08 -0300 |
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committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2014-01-13 10:06:21 -0300 |
commit | 6af206fd911c825b83dd4efb2534a3a34ce77072 (patch) | |
tree | 58824fb1c602e6e8eeecfa3f7da0b81f563b19a6 /tools/perf/util/evlist.c | |
parent | 1341f3e4c0276aae3de6d902c9202265d89fe438 (diff) | |
download | op-kernel-dev-6af206fd911c825b83dd4efb2534a3a34ce77072.zip op-kernel-dev-6af206fd911c825b83dd4efb2534a3a34ce77072.tar.gz |
perf stat: Don't show counter information when workload fails
When starting a workload 'stat' wasn't using prepare_workload evlist
method's signal based exec() error reporting mechanism.
Use it so that the we don't report 'not counted' counters.
Before:
[acme@zoo linux]$ perf stat dfadsfa
dfadsfa: No such file or directory
Performance counter stats for 'dfadsfa':
<not counted> task-clock
<not counted> context-switches
<not counted> cpu-migrations
<not counted> page-faults
<not counted> cycles
<not counted> stalled-cycles-frontend
<not supported> stalled-cycles-backend
<not counted> instructions
<not counted> branches
<not counted> branch-misses
0.001831462 seconds time elapsed
[acme@zoo linux]$
After:
[acme@zoo linux]$ perf stat dfadsfa
dfadsfa: No such file or directory
[acme@zoo linux]$
Reported-by: David Ahern <dsahern@gmail.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-5yui3bv7e3hitxucnjsn6z8q@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/evlist.c')
0 files changed, 0 insertions, 0 deletions