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
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 *
19
20 usage = "perf script -s syscall-counts-by-pid.py [comm|pid]\n";
21
22 for_comm = None
23 for_pid = None
24
25 if len(sys.argv) > 2:
26 sys.exit(usage)
27
28 if len(sys.argv) > 1:
29 try:
30 for_pid = int(sys.argv[1])
31 except:
32 for_comm = sys.argv[1]
33
34 syscalls = autodict()
35
36 def trace_begin():
37 print("Press control+C to stop and show the summary")
38
39 def trace_end():
40 print_error_totals()
41
42 def raw_syscalls__sys_exit(event_name, context, common_cpu,
43 common_secs, common_nsecs, common_pid, common_comm,
44 common_callchain, id, ret):
45 if (for_comm and common_comm != for_comm) or \
46 (for_pid and common_pid != for_pid ):
47 return
48
49 if ret < 0:
50 try:
51 syscalls[common_comm][common_pid][id][ret] += 1
52 except TypeError:
53 syscalls[common_comm][common_pid][id][ret] = 1
54
55 def syscalls__sys_exit(event_name, context, common_cpu,
56 common_secs, common_nsecs, common_pid, common_comm,
57 id, ret):
58 raw_syscalls__sys_exit(**locals())
59
60 def print_error_totals():
61 if for_comm is not None:
62 print("\nsyscall errors for %s:\n" % (for_comm))
63 else:
64 print("\nsyscall errors:\n")
65
66 print("%-30s %10s" % ("comm [pid]", "count"))
67 print("%-30s %10s" % ("------------------------------", "----------"))
68
69 comm_keys = syscalls.keys()
70 for comm in comm_keys:
71 pid_keys = syscalls[comm].keys()
72 for pid in pid_keys:
73 print("\n%s [%d]" % (comm, pid))
74 id_keys = syscalls[comm][pid].keys()
75 for id in id_keys:
76 print(" syscall: %-16s" % syscall_name(id))
77 ret_keys = syscalls[comm][pid][id].keys()
78 for ret, val in sorted(syscalls[comm][pid][id].items(), key = lambda kv: (kv[1], kv[0]), reverse = True):
79 print(" err = %-20s %10d" % (strerror(ret), val))
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