# 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 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 * usage = "perf trace -s syscall-counts-by-pid.py [comm]\n"; for_comm = None if len(sys.argv) > 2:	sys.exit(usage) if len(sys.argv) > 1:	for_comm = sys.argv[1] syscalls = autodict() def trace_begin():	pass 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 is not None:		if common_comm != for_comm:			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: %-16d\n" % (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 = %-20d  %10d\n" % (ret, val),