1 # failed system call counts, by pid 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 failed system call totals, broken down by pid. 6 # If a [comm] arg is specified, only syscalls called by [comm] are displayed. 7 8 from __future__ import print_function 9 10 import os 11 import sys 12 13 sys.path.append(os.environ['PERF_EXEC_PATH'] + \ 14 '/scripts/python/Perf-Trace-Util/lib/Perf/Trace') 15 16 from perf_trace_context import * 17 from Core import * 18 from Util import * 19 20 usage = "perf script -s syscall-counts-by-pid.py [comm|pid]\n"; 21 22 for_comm = None 23 for_pid = None 24 25 if len(sys.argv) > 2: 26 sys.exit(usage) 27 28 if len(sys.argv) > 1: 29 try: 30 for_pid = int(sys.argv[1]) 31 except: 32 for_comm = sys.argv[1] 33 34 syscalls = autodict() 35 36 def trace_begin(): 37 print("Press control+C to stop and show the summary") 38 39 def trace_end(): 40 print_error_totals() 41 42 def raw_syscalls__sys_exit(event_name, context, common_cpu, 43 common_secs, common_nsecs, common_pid, common_comm, 44 common_callchain, id, ret): 45 if (for_comm and common_comm != for_comm) or \ 46 (for_pid and common_pid != for_pid ): 47 return 48 49 if ret < 0: 50 try: 51 syscalls[common_comm][common_pid][id][ret] += 1 52 except TypeError: 53 syscalls[common_comm][common_pid][id][ret] = 1 54 55 def syscalls__sys_exit(event_name, context, common_cpu, 56 common_secs, common_nsecs, common_pid, common_comm, 57 id, ret): 58 raw_syscalls__sys_exit(**locals()) 59 60 def print_error_totals(): 61 if for_comm is not None: 62 print("\nsyscall errors for %s:\n" % (for_comm)) 63 else: 64 print("\nsyscall errors:\n") 65 66 print("%-30s %10s" % ("comm [pid]", "count")) 67 print("%-30s %10s" % ("------------------------------", "----------")) 68 69 comm_keys = syscalls.keys() 70 for comm in comm_keys: 71 pid_keys = syscalls[comm].keys() 72 for pid in pid_keys: 73 print("\n%s [%d]" % (comm, pid)) 74 id_keys = syscalls[comm][pid].keys() 75 for id in id_keys: 76 print(" syscall: %-16s" % syscall_name(id)) 77 ret_keys = syscalls[comm][pid][id].keys() 78 for ret, val in sorted(syscalls[comm][pid][id].items(), key = lambda kv: (kv[1], kv[0]), reverse = True): 79 print(" err = %-20s %10d" % (strerror(ret), val)) 80