3 # -*- coding: utf-8 -*-
4 # twatch - Experimental use of the perf python interface
5 # Copyright (C) 2011 Arnaldo Carvalho de Melo <acme@redhat.com>
7 # This application is free software; you can redistribute it and/or
8 # modify it under the terms of the GNU General Public License
9 # as published by the Free Software Foundation; version 2.
11 # This application is distributed in the hope that it will be useful,
12 # but WITHOUT ANY WARRANTY; without even the implied warranty of
13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 # General Public License for more details.
20 threads = perf.thread_map()
21 evsel = perf.evsel(task = 1, comm = 1, mmap = 0,
22 wakeup_events = 1, sample_period = 1,
24 sample_type = perf.SAMPLE_PERIOD | perf.SAMPLE_TID | perf.SAMPLE_CPU | perf.SAMPLE_TID)
25 evsel.open(cpus = cpus, threads = threads);
26 evlist = perf.evlist(cpus, threads)
30 evlist.poll(timeout = -1)
32 event = evlist.read_on_cpu(cpu)
35 print "cpu: %2d, pid: %4d, tid: %4d" % (event.sample_cpu,
40 if __name__ == '__main__':