1# system call counts 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 system call totals, broken down by syscall. 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 * 16from Util import syscall_name 17 18usage = "perf script -s syscall-counts.py [comm]\n"; 19 20for_comm = None 21 22if len(sys.argv) > 2: 23 sys.exit(usage) 24 25if len(sys.argv) > 1: 26 for_comm = sys.argv[1] 27 28syscalls = autodict() 29 30def trace_begin(): 31 print "Press control+C to stop and show the summary" 32 33def trace_end(): 34 print_syscall_totals() 35 36def raw_syscalls__sys_enter(event_name, context, common_cpu, 37 common_secs, common_nsecs, common_pid, common_comm, 38 common_callchain, id, args): 39 if for_comm is not None: 40 if common_comm != for_comm: 41 return 42 try: 43 syscalls[id] += 1 44 except TypeError: 45 syscalls[id] = 1 46 47def syscalls__sys_enter(event_name, context, common_cpu, 48 common_secs, common_nsecs, common_pid, common_comm, 49 id, args): 50 raw_syscalls__sys_enter(**locals()) 51 52def print_syscall_totals(): 53 if for_comm is not None: 54 print "\nsyscall events for %s:\n\n" % (for_comm), 55 else: 56 print "\nsyscall events:\n\n", 57 58 print "%-40s %10s\n" % ("event", "count"), 59 print "%-40s %10s\n" % ("----------------------------------------", \ 60 "-----------"), 61 62 for id, val in sorted(syscalls.iteritems(), key = lambda(k, v): (v, k), \ 63 reverse = True): 64 print "%-40s %10d\n" % (syscall_name(id), val), 65