xref: /linux/tools/perf/scripts/python/syscall-counts-by-pid.py (revision ca55b2fef3a9373fcfc30f82fd26bc7fccbda732) 
1# system call counts, by pid
2# (c) 2010, Tom Zanussi <tzanussi@gmail.com>
3# Licensed under the terms of the GNU GPL License version 2
4#
5# Displays system-wide system call totals, broken down by syscall.
6# If a [comm] arg is specified, only syscalls called by [comm] are displayed.
7
8import os, sys
9
10sys.path.append(os.environ['PERF_EXEC_PATH'] + \
11	'/scripts/python/Perf-Trace-Util/lib/Perf/Trace')
12
13from perf_trace_context import *
14from Core import *
15from Util import syscall_name
16
17usage = "perf script -s syscall-counts-by-pid.py [comm]\n";
18
19for_comm = None
20for_pid = None
21
22if len(sys.argv) > 2:
23	sys.exit(usage)
24
25if len(sys.argv) > 1:
26	try:
27		for_pid = int(sys.argv[1])
28	except:
29		for_comm = sys.argv[1]
30
31syscalls = autodict()
32
33def trace_begin():
34	print "Press control+C to stop and show the summary"
35
36def trace_end():
37	print_syscall_totals()
38
39def raw_syscalls__sys_enter(event_name, context, common_cpu,
40	common_secs, common_nsecs, common_pid, common_comm,
41	common_callchain, id, args):
42
43	if (for_comm and common_comm != for_comm) or \
44	   (for_pid  and common_pid  != for_pid ):
45		return
46	try:
47		syscalls[common_comm][common_pid][id] += 1
48	except TypeError:
49		syscalls[common_comm][common_pid][id] = 1
50
51def syscalls__sys_enter(event_name, context, common_cpu,
52	common_secs, common_nsecs, common_pid, common_comm,
53	id, args):
54	raw_syscalls__sys_enter(**locals())
55
56def print_syscall_totals():
57    if for_comm is not None:
58	    print "\nsyscall events for %s:\n\n" % (for_comm),
59    else:
60	    print "\nsyscall events by comm/pid:\n\n",
61
62    print "%-40s  %10s\n" % ("comm [pid]/syscalls", "count"),
63    print "%-40s  %10s\n" % ("----------------------------------------", \
64                                 "----------"),
65
66    comm_keys = syscalls.keys()
67    for comm in comm_keys:
68	    pid_keys = syscalls[comm].keys()
69	    for pid in pid_keys:
70		    print "\n%s [%d]\n" % (comm, pid),
71		    id_keys = syscalls[comm][pid].keys()
72		    for id, val in sorted(syscalls[comm][pid].iteritems(), \
73				  key = lambda(k, v): (v, k),  reverse = True):
74			    print "  %-38s  %10d\n" % (syscall_name(id), val),
75