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 * 16 17usage = "perf trace -s syscall-counts.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_syscall_totals() 34 35def raw_syscalls__sys_enter(event_name, context, common_cpu, 36 common_secs, common_nsecs, common_pid, common_comm, 37 id, args): 38 if for_comm is not None: 39 if common_comm != for_comm: 40 return 41 try: 42 syscalls[id] += 1 43 except TypeError: 44 syscalls[id] = 1 45 46def print_syscall_totals(): 47 if for_comm is not None: 48 print "\nsyscall events for %s:\n\n" % (for_comm), 49 else: 50 print "\nsyscall events:\n\n", 51 52 print "%-40s %10s\n" % ("event", "count"), 53 print "%-40s %10s\n" % ("----------------------------------------", \ 54 "-----------"), 55 56 for id, val in sorted(syscalls.iteritems(), key = lambda(k, v): (v, k), \ 57 reverse = True): 58 print "%-40d %10d\n" % (id, val), 59