blob: 310efe5e7e233749ffdf39c32eb833dc6c693654 [file] [log] [blame]
# failed system call counts, by pid
# (c) 2010, Tom Zanussi <>
# Licensed under the terms of the GNU GPL License version 2
# Displays system-wide failed system call totals, broken down by pid.
# If a [comm] arg is specified, only syscalls called by [comm] are displayed.
from __future__ import print_function
import os
import sys
sys.path.append(os.environ['PERF_EXEC_PATH'] + \
from perf_trace_context import *
from Core import *
from Util import *
usage = "perf script -s [comm|pid]\n";
for_comm = None
for_pid = None
if len(sys.argv) > 2:
if len(sys.argv) > 1:
for_pid = int(sys.argv[1])
for_comm = sys.argv[1]
syscalls = autodict()
def trace_begin():
print("Press control+C to stop and show the summary")
def trace_end():
def raw_syscalls__sys_exit(event_name, context, common_cpu,
common_secs, common_nsecs, common_pid, common_comm,
common_callchain, id, ret):
if (for_comm and common_comm != for_comm) or \
(for_pid and common_pid != for_pid ):
if ret < 0:
syscalls[common_comm][common_pid][id][ret] += 1
except TypeError:
syscalls[common_comm][common_pid][id][ret] = 1
def syscalls__sys_exit(event_name, context, common_cpu,
common_secs, common_nsecs, common_pid, common_comm,
id, ret):
def print_error_totals():
if for_comm is not None:
print("\nsyscall errors for %s:\n" % (for_comm))
print("\nsyscall errors:\n")
print("%-30s %10s" % ("comm [pid]", "count"))
print("%-30s %10s" % ("------------------------------", "----------"))
comm_keys = syscalls.keys()
for comm in comm_keys:
pid_keys = syscalls[comm].keys()
for pid in pid_keys:
print("\n%s [%d]" % (comm, pid))
id_keys = syscalls[comm][pid].keys()
for id in id_keys:
print(" syscall: %-16s" % syscall_name(id))
ret_keys = syscalls[comm][pid][id].keys()
for ret, val in sorted(syscalls[comm][pid][id].items(), key = lambda kv: (kv[1], kv[0]), reverse = True):
print(" err = %-20s %10d" % (strerror(ret), val))