80 lines · python
1# failed system call counts, by pid2# (c) 2010, Tom Zanussi <tzanussi@gmail.com>3# Licensed under the terms of the GNU GPL License version 24#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 8from __future__ import print_function9 10import os11import sys12 13sys.path.append(os.environ['PERF_EXEC_PATH'] + \14 '/scripts/python/Perf-Trace-Util/lib/Perf/Trace')15 16from perf_trace_context import *17from Core import *18from Util import *19 20usage = "perf script -s syscall-counts-by-pid.py [comm|pid]\n";21 22for_comm = None23for_pid = None24 25if len(sys.argv) > 2:26 sys.exit(usage)27 28if len(sys.argv) > 1:29 try:30 for_pid = int(sys.argv[1])31 except:32 for_comm = sys.argv[1]33 34syscalls = autodict()35 36def trace_begin():37 print("Press control+C to stop and show the summary")38 39def trace_end():40 print_error_totals()41 42def 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 return48 49 if ret < 0:50 try:51 syscalls[common_comm][common_pid][id][ret] += 152 except TypeError:53 syscalls[common_comm][common_pid][id][ret] = 154 55def 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 60def 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))80