1 # system call counts, by pid 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, sys 9 10 sys.path.append(os.environ['PERF_EXEC_PATH'] + \ 11 '/scripts/python/Perf-Trace-Util/lib/Perf/Trace') 12 13 from perf_trace_context import * 14 from Core import * 15 from Util import syscall_name 16 17 usage = "perf script -s syscall-counts-by-pid.py [comm]\n"; 18 19 for_comm = None 20 for_pid = None 21 22 if len(sys.argv) > 2: 23 sys.exit(usage) 24 25 if len(sys.argv) > 1: 26 try: 27 for_pid = int(sys.argv[1]) 28 except: 29 for_comm = sys.argv[1] 30 31 syscalls = autodict() 32 33 def trace_begin(): 34 print "Press control+C to stop and show the summary" 35 36 def trace_end(): 37 print_syscall_totals() 38 39 def raw_syscalls__sys_enter(event_name, context, common_cpu, 40 common_secs, common_nsecs, common_pid, common_comm, 41 id, args): 42 43 if (for_comm and common_comm != for_comm) or \ 44 (for_pid and common_pid != for_pid ): 45 return 46 try: 47 syscalls[common_comm][common_pid][id] += 1 48 except TypeError: 49 syscalls[common_comm][common_pid][id] = 1 50 51 def print_syscall_totals(): 52 if for_comm is not None: 53 print "\nsyscall events for %s:\n\n" % (for_comm), 54 else: 55 print "\nsyscall events by comm/pid:\n\n", 56 57 print "%-40s %10s\n" % ("comm [pid]/syscalls", "count"), 58 print "%-40s %10s\n" % ("----------------------------------------", \ 59 "----------"), 60 61 comm_keys = syscalls.keys() 62 for comm in comm_keys: 63 pid_keys = syscalls[comm].keys() 64 for pid in pid_keys: 65 print "\n%s [%d]\n" % (comm, pid), 66 id_keys = syscalls[comm][pid].keys() 67 for id, val in sorted(syscalls[comm][pid].iteritems(), \ 68 key = lambda(k, v): (v, k), reverse = True): 69 print " %-38s %10d\n" % (syscall_name(id), val), 70
