1 # system call counts 2 # (c) 2010, Tom Zanussi <tzanussi (at] 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 8 import os 9 import sys 10 11 sys.path.append(os.environ['PERF_EXEC_PATH'] + \ 12 '/scripts/python/Perf-Trace-Util/lib/Perf/Trace') 13 14 from perf_trace_context import * 15 from Core import * 16 from Util import syscall_name 17 18 usage = "perf script -s syscall-counts.py [comm]\n"; 19 20 for_comm = None 21 22 if len(sys.argv) > 2: 23 sys.exit(usage) 24 25 if len(sys.argv) > 1: 26 for_comm = sys.argv[1] 27 28 syscalls = autodict() 29 30 def trace_begin(): 31 print "Press control+C to stop and show the summary" 32 33 def trace_end(): 34 print_syscall_totals() 35 36 def raw_syscalls__sys_enter(event_name, context, common_cpu, 37 common_secs, common_nsecs, common_pid, common_comm, 38 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 47 def print_syscall_totals(): 48 if for_comm is not None: 49 print "\nsyscall events for %s:\n\n" % (for_comm), 50 else: 51 print "\nsyscall events:\n\n", 52 53 print "%-40s %10s\n" % ("event", "count"), 54 print "%-40s %10s\n" % ("----------------------------------------", \ 55 "-----------"), 56 57 for id, val in sorted(syscalls.iteritems(), key = lambda(k, v): (v, k), \ 58 reverse = True): 59 print "%-40s %10d\n" % (syscall_name(id), val), 60
