tools/perf/scripts/python/failed-syscalls-by-pid.py

   1 # failed system call counts, by pid
   2 # (c) 2010, Tom Zanussi <[email protected]>
   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 import os
   9 import sys
  10
  11 sys.path.append(os.environ['PERF_EXEC_PATH'] + \
  12         '/scripts/python/Perf-Trace-Util/lib/Perf/Trace')
  13
  14 from perf_trace_context import *
  15 from Core import *
  16
  17 usage = "perf trace -s syscall-counts-by-pid.py [comm]\n";
  18
  19 for_comm = None
  20
  21 if len(sys.argv) > 2:
  22         sys.exit(usage)
  23
  24 if len(sys.argv) > 1:
  25         for_comm = sys.argv[1]
  26
  27 syscalls = autodict()
  28
  29 def trace_begin():
  30         pass
  31
  32 def trace_end():
  33         print_error_totals()
  34
  35 def 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
  48 def 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),