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Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859606162636465666768697071727374757677787980# 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.
from __future__ import print_function
import osimport 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 = Nonefor_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, common_callchain, 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 syscalls__sys_exit(event_name, context, common_cpu, common_secs, common_nsecs, common_pid, common_comm, id, ret): raw_syscalls__sys_exit(**locals())
def print_error_totals(): if for_comm is not None: print("\nsyscall errors for %s:\n" % (for_comm)) else: 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))