1# failed 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 failed system call totals, broken down by pid.
6# If a [comm] arg is specified, only syscalls called by [comm] are displayed.
7
8import os
9import sys
10
11sys.path.append(os.environ['PERF_EXEC_PATH'] + \
12	'/scripts/python/Perf-Trace-Util/lib/Perf/Trace')
13
14from perf_trace_context import *
15from Core import *
16
17usage = "perf trace -s syscall-counts-by-pid.py [comm]\n";
18
19for_comm = None
20
21if len(sys.argv) > 2:
22	sys.exit(usage)
23
24if len(sys.argv) > 1:
25	for_comm = sys.argv[1]
26
27syscalls = autodict()
28
29def trace_begin():
30	pass
31
32def trace_end():
33	print_error_totals()
34
35def raw_syscalls__sys_exit(event_name, context, common_cpu,
36	common_secs, common_nsecs, common_pid, common_comm,
37	id, ret):
38	if for_comm is not None:
39		if common_comm != for_comm:
40			return
41
42	if ret < 0:
43		try:
44			syscalls[common_comm][common_pid][id][ret] += 1
45		except TypeError:
46			syscalls[common_comm][common_pid][id][ret] = 1
47
48def print_error_totals():
49    if for_comm is not None:
50	    print "\nsyscall errors for %s:\n\n" % (for_comm),
51    else:
52	    print "\nsyscall errors:\n\n",
53
54    print "%-30s  %10s\n" % ("comm [pid]", "count"),
55    print "%-30s  %10s\n" % ("------------------------------", \
56                                 "----------"),
57
58    comm_keys = syscalls.keys()
59    for comm in comm_keys:
60	    pid_keys = syscalls[comm].keys()
61	    for pid in pid_keys:
62		    print "\n%s [%d]\n" % (comm, pid),
63		    id_keys = syscalls[comm][pid].keys()
64		    for id in id_keys:
65			    print "  syscall: %-16d\n" % (id),
66			    ret_keys = syscalls[comm][pid][id].keys()
67			    for ret, val in sorted(syscalls[comm][pid][id].iteritems(), key = lambda(k, v): (v, k),  reverse = True):
68				    print "    err = %-20d  %10d\n" % (ret, val),
69