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 8import os 9import sys 10 11sys.path.append(os.environ['PERF_EXEC_PATH'] + \ 12 '/scripts/python/Perf-Trace-Util/lib/Perf/Trace') 13 14from perf_trace_context import * 15from Core import * 16 17usage = "perf trace -s syscall-counts-by-pid.py [comm]\n"; 18 19for_comm = None 20 21if len(sys.argv) > 2: 22 sys.exit(usage) 23 24if len(sys.argv) > 1: 25 for_comm = sys.argv[1] 26 27syscalls = autodict() 28 29def trace_begin(): 30 pass 31 32def trace_end(): 33 print_error_totals() 34 35def 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 48def 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), 69