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# failed system call counts, by pid
# (c) 2010, Tom Zanussi <tzanussi@gmail.com>
# 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.
import os
import sys
sys.path.append(os.environ['PERF_EXEC_PATH'] + \
'/scripts/python/Perf-Trace-Util/lib/Perf/Trace')
from perf_trace_context import *
from Core import *
from Util import *
usage = "perf script -s syscall-counts-by-pid.py [comm|pid]\n";
for_comm = None
for_pid = None
if len(sys.argv) > 2:
sys.exit(usage)
if len(sys.argv) > 1:
try:
for_pid = int(sys.argv[1])
except:
for_comm = sys.argv[1]
syscalls = autodict()
def trace_begin():
print "Press control+C to stop and show the summary"
def trace_end():
print_error_totals()
def raw_syscalls__sys_exit(event_name, context, common_cpu,
common_secs, common_nsecs, common_pid, common_comm,
id, ret):
if (for_comm and common_comm != for_comm) or \
(for_pid and common_pid != for_pid ):
return
if ret < 0:
try:
syscalls[common_comm][common_pid][id][ret] += 1
except TypeError:
syscalls[common_comm][common_pid][id][ret] = 1
def print_error_totals():
if for_comm is not None:
print "\nsyscall errors for %s:\n\n" % (for_comm),
else:
print "\nsyscall errors:\n\n",
print "%-30s %10s\n" % ("comm [pid]", "count"),
print "%-30s %10s\n" % ("------------------------------", \
"----------"),
comm_keys = syscalls.keys()
for comm in comm_keys:
pid_keys = syscalls[comm].keys()
for pid in pid_keys:
print "\n%s [%d]\n" % (comm, pid),
id_keys = syscalls[comm][pid].keys()
for id in id_keys:
print " syscall: %-16s\n" % syscall_name(id),
ret_keys = syscalls[comm][pid][id].keys()
for ret, val in sorted(syscalls[comm][pid][id].iteritems(), key = lambda(k, v): (v, k), reverse = True):
print " err = %-20s %10d\n" % (strerror(ret), val),
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