xref: /linux/tools/perf/scripts/python/syscall-counts-by-pid.py (revision bc3bb795345891509b4a3cbff824cbef8c130f20) 
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
8from __future__ import print_function
9
10import os, sys
11
12sys.path.append(os.environ['PERF_EXEC_PATH'] + \
13	'/scripts/python/Perf-Trace-Util/lib/Perf/Trace')
14
15from perf_trace_context import *
16from Core import *
17from Util import syscall_name
18
19usage = "perf script -s syscall-counts-by-pid.py [comm]\n";
20
21for_comm = None
22for_pid = None
23
24if len(sys.argv) > 2:
25	sys.exit(usage)
26
27if len(sys.argv) > 1:
28	try:
29		for_pid = int(sys.argv[1])
30	except:
31		for_comm = sys.argv[1]
32
33syscalls = autodict()
34
35def trace_begin():
36	print("Press control+C to stop and show the summary")
37
38def trace_end():
39	print_syscall_totals()
40
41def raw_syscalls__sys_enter(event_name, context, common_cpu,
42	common_secs, common_nsecs, common_pid, common_comm,
43	common_callchain, id, args):
44
45	if (for_comm and common_comm != for_comm) or \
46	   (for_pid  and common_pid  != for_pid ):
47		return
48	try:
49		syscalls[common_comm][common_pid][id] += 1
50	except TypeError:
51		syscalls[common_comm][common_pid][id] = 1
52
53def syscalls__sys_enter(event_name, context, common_cpu,
54	common_secs, common_nsecs, common_pid, common_comm,
55	id, args):
56	raw_syscalls__sys_enter(**locals())
57
58def print_syscall_totals():
59    if for_comm is not None:
60	    print("\nsyscall events for %s:\n" % (for_comm))
61    else:
62	    print("\nsyscall events by comm/pid:\n")
63
64    print("%-40s  %10s" % ("comm [pid]/syscalls", "count"))
65    print("%-40s  %10s" % ("----------------------------------------",
66                            "----------"))
67
68    comm_keys = syscalls.keys()
69    for comm in comm_keys:
70	    pid_keys = syscalls[comm].keys()
71	    for pid in pid_keys:
72		    print("\n%s [%d]" % (comm, pid))
73		    id_keys = syscalls[comm][pid].keys()
74		    for id, val in sorted(syscalls[comm][pid].items(), \
75				  key = lambda kv: (kv[1], kv[0]),  reverse = True):
76			    print("  %-38s  %10d" % (syscall_name(id), val))
77