aboutsummaryrefslogtreecommitdiffstats
path: root/tools/perf/scripts/python/sctop.py
diff options
context:
space:
mode:
Diffstat (limited to 'tools/perf/scripts/python/sctop.py')
-rw-r--r--tools/perf/scripts/python/sctop.py78
1 files changed, 78 insertions, 0 deletions
diff --git a/tools/perf/scripts/python/sctop.py b/tools/perf/scripts/python/sctop.py
new file mode 100644
index 000000000000..6cafad40c296
--- /dev/null
+++ b/tools/perf/scripts/python/sctop.py
@@ -0,0 +1,78 @@
1# system call top
2# (c) 2010, Tom Zanussi <tzanussi@gmail.com>
3# Licensed under the terms of the GNU GPL License version 2
4#
5# Periodically displays system-wide system call totals, broken down by
6# syscall. If a [comm] arg is specified, only syscalls called by
7# [comm] are displayed. If an [interval] arg is specified, the display
8# will be refreshed every [interval] seconds. The default interval is
9# 3 seconds.
10
11import thread
12import time
13import os
14import sys
15
16sys.path.append(os.environ['PERF_EXEC_PATH'] + \
17 '/scripts/python/Perf-Trace-Util/lib/Perf/Trace')
18
19from perf_trace_context import *
20from Core import *
21from Util import *
22
23usage = "perf trace -s syscall-counts.py [comm] [interval]\n";
24
25for_comm = None
26default_interval = 3
27interval = default_interval
28
29if len(sys.argv) > 3:
30 sys.exit(usage)
31
32if len(sys.argv) > 2:
33 for_comm = sys.argv[1]
34 interval = int(sys.argv[2])
35elif len(sys.argv) > 1:
36 try:
37 interval = int(sys.argv[1])
38 except ValueError:
39 for_comm = sys.argv[1]
40 interval = default_interval
41
42syscalls = autodict()
43
44def trace_begin():
45 thread.start_new_thread(print_syscall_totals, (interval,))
46 pass
47
48def raw_syscalls__sys_enter(event_name, context, common_cpu,
49 common_secs, common_nsecs, common_pid, common_comm,
50 id, args):
51 if for_comm is not None:
52 if common_comm != for_comm:
53 return
54 try:
55 syscalls[id] += 1
56 except TypeError:
57 syscalls[id] = 1
58
59def print_syscall_totals(interval):
60 while 1:
61 clear_term()
62 if for_comm is not None:
63 print "\nsyscall events for %s:\n\n" % (for_comm),
64 else:
65 print "\nsyscall events:\n\n",
66
67 print "%-40s %10s\n" % ("event", "count"),
68 print "%-40s %10s\n" % ("----------------------------------------", \
69 "----------"),
70
71 for id, val in sorted(syscalls.iteritems(), key = lambda(k, v): (v, k), \
72 reverse = True):
73 try:
74 print "%-40d %10d\n" % (id, val),
75 except TypeError:
76 pass
77 syscalls.clear()
78 time.sleep(interval)