perf python: Use attr.watermark in twatch.py
Commit-ID: cfeb1d90a1b1db96383b48888cb7a5f10ca12e12 Gitweb: http://git.kernel.org/tip/cfeb1d90a1b1db96383b48888cb7a5f10ca12e12 Author: Arnaldo Carvalho de Melo <[email protected]> AuthorDate: Mon, 30 Jan 2012 14:43:21 -0200 Committer: Arnaldo Carvalho de Melo <[email protected]> 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 <[email protected]>
Cc David Ahern <[email protected]>
Cc Frederic Weisbecker <[email protected]>
Cc Mike Galbraith <[email protected]>
Cc Paul Mackerras <[email protected]>
Cc Peter Zijlstra <[email protected]>
Cc Stephane Eranian <[email protected]>
Signed-off-by Arnaldo Carvalho de Melo <[email protected]>
--- tools/perf/python/twatch.py | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-)
tools/perf/python/twatch.py +1 -1
@@ -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);