76 lines · python
1# 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 system call totals, broken down by syscall.6# If a [comm] arg is specified, only syscalls called by [comm] are displayed.7 8from __future__ import print_function9 10import os, sys11 12sys.path.append(os.environ['PERF_EXEC_PATH'] + \13 '/scripts/python/Perf-Trace-Util/lib/Perf/Trace')14 15from perf_trace_context import *16from Core import *17from Util import syscall_name18 19usage = "perf script -s syscall-counts-by-pid.py [comm]\n";20 21for_comm = None22for_pid = None23 24if len(sys.argv) > 2:25 sys.exit(usage)26 27if len(sys.argv) > 1:28 try:29 for_pid = int(sys.argv[1])30 except:31 for_comm = sys.argv[1]32 33syscalls = autodict()34 35def trace_begin():36 print("Press control+C to stop and show the summary")37 38def trace_end():39 print_syscall_totals()40 41def 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 return47 try:48 syscalls[common_comm][common_pid][id] += 149 except TypeError:50 syscalls[common_comm][common_pid][id] = 151 52def 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 57def 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))76