diff options
| author | Peter Zijlstra <a.p.zijlstra@chello.nl> | 2009-06-11 23:11:50 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-06-12 14:28:52 +0200 |
| commit | bbd36e5e6aa6f1757c84cdb406b6eb81686d14af (patch) | |
| tree | eeb2ea1ec358c8484277078315ef8c211e7c1397 /tools/perf/builtin-record.c | |
| parent | 081fad86178ec0f64f32f1bd04cf4aad22714fb9 (diff) | |
| download | lwn-bbd36e5e6aa6f1757c84cdb406b6eb81686d14af.tar.gz lwn-bbd36e5e6aa6f1757c84cdb406b6eb81686d14af.zip | |
perf record: Explicity program a default counter
Up until now record has worked on the assumption that type=0, config=0
was a suitable configuration - which it is. Lets make this a little more
explicit and more readable via the use of proper symbols.
[ Impact: cleanup ]
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'tools/perf/builtin-record.c')
| -rw-r--r-- | tools/perf/builtin-record.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c index 29259e74dcfa..0f5771f615da 100644 --- a/tools/perf/builtin-record.c +++ b/tools/perf/builtin-record.c @@ -568,8 +568,11 @@ int cmd_record(int argc, const char **argv, const char *prefix) if (!argc && target_pid == -1 && !system_wide) usage_with_options(record_usage, options); - if (!nr_counters) - nr_counters = 1; + if (!nr_counters) { + nr_counters = 1; + attrs[0].type = PERF_TYPE_HARDWARE; + attrs[0].config = PERF_COUNT_HW_CPU_CYCLES; + } for (counter = 0; counter < nr_counters; counter++) { if (attrs[counter].sample_period) |