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