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