---

yaml
---
r: 234376
b: refs/heads/master
c: 877108e
h: refs/heads/master
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 8115d60c323dd9931b95221c0a392aeddc1d6ef3
+refs/heads/master: 877108e42b1b9ba64857c4030cf356ecc120fd18

trunk/tools/perf/Makefile

@@ -315,6 +315,7 @@ COMPAT_CFLAGS =
 COMPAT_OBJS =
 LIB_H =
 LIB_OBJS =
+PYRF_OBJS =
 SCRIPT_PERL =
 SCRIPT_SH =
 TEST_PROGRAMS =
@@ -324,6 +325,9 @@ SCRIPT_SH += perf-archive.sh
 grep-libs = $(filter -l%,$(1))
 strip-libs = $(filter-out -l%,$(1))
 
+pyrf: $(PYRF_OBJS)
+	python util/setup.py build --build-base='$(OUTPUT)'
+
 #
 # No Perl scripts right now:
 #
@@ -349,7 +353,7 @@ PROGRAMS += $(OUTPUT)perf
 #
 
 # what 'all' will build and 'install' will install, in perfexecdir
-ALL_PROGRAMS = $(PROGRAMS) $(SCRIPTS)
+ALL_PROGRAMS = $(PROGRAMS) $(SCRIPTS) pyrf
 
 # what 'all' will build but not install in perfexecdir
 OTHER_PROGRAMS = $(OUTPUT)perf$X
@@ -520,6 +524,20 @@ BUILTIN_OBJS += $(OUTPUT)builtin-inject.o
 
 PERFLIBS = $(LIB_FILE)
 
+# Files needed for the python binding, perf.so
+# pyrf is just an internal name needed for all those wrappers.
+# This has to be in sync with what is in the 'sources' variable in
+# tools/perf/util/setup.py
+
+PYRF_OBJS += $(OUTPUT)util/cpumap.o
+PYRF_OBJS += $(OUTPUT)util/ctype.o
+PYRF_OBJS += $(OUTPUT)util/evlist.o
+PYRF_OBJS += $(OUTPUT)util/evsel.o
+PYRF_OBJS += $(OUTPUT)util/python.o
+PYRF_OBJS += $(OUTPUT)util/thread_map.o
+PYRF_OBJS += $(OUTPUT)util/util.o
+PYRF_OBJS += $(OUTPUT)util/xyarray.o
+
 #
 # Platform specific tweaks
 #

trunk/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()
+	evlist.add(evsel)
+	evlist.mmap(cpus = cpus, threads = threads)
+	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()