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| author | Stefan Richter <stefanr@s5r6.in-berlin.de> | 2011-05-10 20:52:07 +0200 |
|---|---|---|
| committer | Stefan Richter <stefanr@s5r6.in-berlin.de> | 2011-05-10 22:50:41 +0200 |
| commit | 020abf03cd659388f94cb328e1e1df0656e0d7ff (patch) | |
| tree | 40d05011708ad1b4a05928d167eb120420581aa6 /tools/perf/python | |
| parent | 0ff8fbc61727c926883eec381fbd3d32d1fab504 (diff) | |
| parent | 693d92a1bbc9e42681c42ed190bd42b636ca876f (diff) | |
Merge tag 'v2.6.39-rc7'
in order to pull in changes in drivers/media/dvb/firewire/ and
sound/firewire/.
Diffstat (limited to 'tools/perf/python')
| -rwxr-xr-x | tools/perf/python/twatch.py | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/tools/perf/python/twatch.py b/tools/perf/python/twatch.py new file mode 100755 index 000000000000..df638c438a9f --- /dev/null +++ b/tools/perf/python/twatch.py @@ -0,0 +1,41 @@ +#! /usr/bin/python +# -*- python -*- +# -*- coding: utf-8 -*- +# twatch - Experimental use of the perf python interface +# Copyright (C) 2011 Arnaldo Carvalho de Melo <acme@redhat.com> +# +# This application is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License +# as published by the Free Software Foundation; version 2. +# +# This application is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +# General Public License for more details. + +import perf + +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, + sample_id_all = 1, + sample_type = perf.SAMPLE_PERIOD | perf.SAMPLE_TID | perf.SAMPLE_CPU | perf.SAMPLE_TID) + evsel.open(cpus = cpus, threads = threads); + evlist = perf.evlist(cpus, threads) + evlist.add(evsel) + evlist.mmap() + while True: + evlist.poll(timeout = -1) + for cpu in cpus: + event = evlist.read_on_cpu(cpu) + if not event: + continue + print "cpu: %2d, pid: %4d, tid: %4d" % (event.sample_cpu, + event.sample_pid, + event.sample_tid), + print event + +if __name__ == '__main__': + main() |
