From 4d161f0360d00d46a89827b3fd6da395f00c5d90 Mon Sep 17 00:00:00 2001
From: Tom Zanussi <tzanussi@gmail.com>
Date: Wed, 27 Jan 2010 02:27:58 -0600
Subject: perf/scripts: Add syscall tracing scripts
Adds a set of scripts that aggregate system call totals and system
call errors. Most are Python scripts that also test basic
functionality of the new Python engine, but there's also one Perl
script added for comparison and for reference in some new
Documentation contained in a later patch.
Signed-off-by: Tom Zanussi <tzanussi@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Keiichi KII <k-keiichi@bx.jp.nec.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
LKML-Reference: <1264580883-15324-8-git-send-email-tzanussi@gmail.com>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
---
tools/perf/scripts/python/check-perf-trace.py | 83 +++++++++++++++++++++++++++
1 file changed, 83 insertions(+)
create mode 100644 tools/perf/scripts/python/check-perf-trace.py
(limited to 'tools/perf/scripts/python/check-perf-trace.py')
diff --git a/tools/perf/scripts/python/check-perf-trace.py b/tools/perf/scripts/python/check-perf-trace.py
new file mode 100644
index 000000000000..964d934395ff
--- /dev/null
+++ b/tools/perf/scripts/python/check-perf-trace.py
@@ -0,0 +1,83 @@
+# perf trace event handlers, generated by perf trace -g python
+# (c) 2010, Tom Zanussi <tzanussi@gmail.com>
+# Licensed under the terms of the GNU GPL License version 2
+#
+# This script tests basic functionality such as flag and symbol
+# strings, common_xxx() calls back into perf, begin, end, unhandled
+# events, etc. Basically, if this script runs successfully and
+# displays expected results, Python scripting support should be ok.
+
+import os
+import sys
+
+sys.path.append(os.environ['PERF_EXEC_PATH'] + \
+ '/scripts/python/Perf-Trace-Util/lib/Perf/Trace')
+
+from Core import *
+from perf_trace_context import *
+
+unhandled = autodict()
+
+def trace_begin():
+ print "trace_begin"
+ pass
+
+def trace_end():
+ print_unhandled()
+
+def irq__softirq_entry(event_name, context, common_cpu,
+ common_secs, common_nsecs, common_pid, common_comm,
+ vec):
+ print_header(event_name, common_cpu, common_secs, common_nsecs,
+ common_pid, common_comm)
+
+ print_uncommon(context)
+
+ print "vec=%s\n" % \
+ (symbol_str("irq__softirq_entry", "vec", vec)),
+
+def kmem__kmalloc(event_name, context, common_cpu,
+ common_secs, common_nsecs, common_pid, common_comm,
+ call_site, ptr, bytes_req, bytes_alloc,
+ gfp_flags):
+ print_header(event_name, common_cpu, common_secs, common_nsecs,
+ common_pid, common_comm)
+
+ print_uncommon(context)
+
+ print "call_site=%u, ptr=%u, bytes_req=%u, " \
+ "bytes_alloc=%u, gfp_flags=%s\n" % \
+ (call_site, ptr, bytes_req, bytes_alloc,
+
+ flag_str("kmem__kmalloc", "gfp_flags", gfp_flags)),
+
+def trace_unhandled(event_name, context, common_cpu, common_secs, common_nsecs,
+ common_pid, common_comm):
+ try:
+ unhandled[event_name] += 1
+ except TypeError:
+ unhandled[event_name] = 1
+
+def print_header(event_name, cpu, secs, nsecs, pid, comm):
+ print "%-20s %5u %05u.%09u %8u %-20s " % \
+ (event_name, cpu, secs, nsecs, pid, comm),
+
+# print trace fields not included in handler args
+def print_uncommon(context):
+ print "common_preempt_count=%d, common_flags=%s, common_lock_depth=%d, " \
+ % (common_pc(context), trace_flag_str(common_flags(context)), \
+ common_lock_depth(context))
+
+def print_unhandled():
+ keys = unhandled.keys()
+ if not keys:
+ return
+
+ print "\nunhandled events:\n\n",
+
+ print "%-40s %10s\n" % ("event", "count"),
+ print "%-40s %10s\n" % ("----------------------------------------", \
+ "-----------"),
+
+ for event_name in keys:
+ print "%-40s %10d\n" % (event_name, unhandled[event_name])
--
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