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authorArnaldo Carvalho de Melo <acme@redhat.com>2012-01-30 14:43:21 -0200
committerArnaldo Carvalho de Melo <acme@redhat.com>2012-01-30 18:38:23 -0200
commitcfeb1d90a1b1db96383b48888cb7a5f10ca12e12 (patch)
tree0c8ec8fd12db30fae33710b32faeb05d10b0e46a
parentd30d4a080d195892091ad7d014fc9293cc08ea0f (diff)
downloadlinux-cfeb1d90a1b1db96383b48888cb7a5f10ca12e12.tar.gz
perf python: Use attr.watermark in twatch.py
We want to be woken up for every PERF_RECORD_ event, attr.wakeup_events is only for PERF_RECORD_SAMPLE, so also use attr.watermark = 1 to fix that. Suggested-by: Peter Zijlstra <peterz@infradead.org> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> 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-v3lnpwgrr8mllcr3ntduuqvc@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
-rwxr-xr-xtools/perf/python/twatch.py2
1 files changed, 1 insertions, 1 deletions
diff --git a/tools/perf/python/twatch.py b/tools/perf/python/twatch.py
index df638c438a9f..b11cca584238 100755
--- a/tools/perf/python/twatch.py
+++ b/tools/perf/python/twatch.py
@@ -19,7 +19,7 @@ def main():
cpus = perf.cpu_map()
threads = perf.thread_map()
evsel = perf.evsel(task = 1, comm = 1, mmap = 0,
- wakeup_events = 1, sample_period = 1,
+ wakeup_events = 1, watermark = 1,
sample_id_all = 1,
sample_type = perf.SAMPLE_PERIOD | perf.SAMPLE_TID | perf.SAMPLE_CPU | perf.SAMPLE_TID)
evsel.open(cpus = cpus, threads = threads);