Messages in this thread Patch in this message | | | Date | Tue, 31 Jan 2012 05:23:18 -0800 | From | tip-bot for Arnaldo Carvalho de Melo <> | Subject | [tip:perf/core] perf python: Use attr.watermark in twatch.py |
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Commit-ID: cfeb1d90a1b1db96383b48888cb7a5f10ca12e12 Gitweb: http://git.kernel.org/tip/cfeb1d90a1b1db96383b48888cb7a5f10ca12e12 Author: Arnaldo Carvalho de Melo <acme@redhat.com> AuthorDate: Mon, 30 Jan 2012 14:43:21 -0200 Committer: Arnaldo Carvalho de Melo <acme@redhat.com> CommitDate: Mon, 30 Jan 2012 18:38:23 -0200
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> --- tools/perf/python/twatch.py | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/tools/perf/python/twatch.py b/tools/perf/python/twatch.py index df638c4..b11cca5 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);
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