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authorPaul Mundt <lethal@linux-sh.org>2011-03-17 10:44:08 +0300
committerPaul Mundt <lethal@linux-sh.org>2011-03-17 10:44:08 +0300
commit1d2a1959fe534279cf37aba20b08c24c20840e52 (patch)
tree67c0b9aa7fe22a44bf0b4af88947799203eb8f67 /tools/perf/python
parent5a79ce76e9bb8f4b2cd8106ee36d15ee05013bcf (diff)
parent054cfaacf88865bff1dd58d305443d5d6c068a08 (diff)
downloadlinux-1d2a1959fe534279cf37aba20b08c24c20840e52.tar.xz
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 into sh-latest
Diffstat (limited to 'tools/perf/python')
-rwxr-xr-xtools/perf/python/twatch.py41
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()