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      1 # failed system call counts, by pid
      2 # (c) 2010, Tom Zanussi <tzanussi (at] 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 import os
      9 import sys
     10 
     11 sys.path.append(os.environ['PERF_EXEC_PATH'] + \
     12 	'/scripts/python/Perf-Trace-Util/lib/Perf/Trace')
     13 
     14 from perf_trace_context import *
     15 from Core import *
     16 from Util import *
     17 
     18 usage = "perf script -s syscall-counts-by-pid.py [comm|pid]\n";
     19 
     20 for_comm = None
     21 for_pid = None
     22 
     23 if len(sys.argv) > 2:
     24 	sys.exit(usage)
     25 
     26 if len(sys.argv) > 1:
     27 	try:
     28 		for_pid = int(sys.argv[1])
     29 	except:
     30 		for_comm = sys.argv[1]
     31 
     32 syscalls = autodict()
     33 
     34 def trace_begin():
     35 	print "Press control+C to stop and show the summary"
     36 
     37 def trace_end():
     38 	print_error_totals()
     39 
     40 def raw_syscalls__sys_exit(event_name, context, common_cpu,
     41 	common_secs, common_nsecs, common_pid, common_comm,
     42 	id, ret):
     43 	if (for_comm and common_comm != for_comm) or \
     44 	   (for_pid  and common_pid  != for_pid ):
     45 		return
     46 
     47 	if ret < 0:
     48 		try:
     49 			syscalls[common_comm][common_pid][id][ret] += 1
     50 		except TypeError:
     51 			syscalls[common_comm][common_pid][id][ret] = 1
     52 
     53 def print_error_totals():
     54     if for_comm is not None:
     55 	    print "\nsyscall errors for %s:\n\n" % (for_comm),
     56     else:
     57 	    print "\nsyscall errors:\n\n",
     58 
     59     print "%-30s  %10s\n" % ("comm [pid]", "count"),
     60     print "%-30s  %10s\n" % ("------------------------------", \
     61                                  "----------"),
     62 
     63     comm_keys = syscalls.keys()
     64     for comm in comm_keys:
     65 	    pid_keys = syscalls[comm].keys()
     66 	    for pid in pid_keys:
     67 		    print "\n%s [%d]\n" % (comm, pid),
     68 		    id_keys = syscalls[comm][pid].keys()
     69 		    for id in id_keys:
     70 			    print "  syscall: %-16s\n" % syscall_name(id),
     71 			    ret_keys = syscalls[comm][pid][id].keys()
     72 			    for ret, val in sorted(syscalls[comm][pid][id].iteritems(), key = lambda(k, v): (v, k),  reverse = True):
     73 				    print "    err = %-20s  %10d\n" % (strerror(ret), val),
     74