forked from mirrors/linux
6cc7361440
. Print message at script start telling how to get te summary
. Print the syscall name using the audit-lib-python package, if
installed
. Print the errno string
. Accept both pid (if numeric) or COMM name
Now it looks like this:
[root@emilia ~]# perf trace failed-syscalls-by-pid
Press control+C to stop and show the summary
^C
syscall errors:
comm [pid] count
------------------------------ ----------
automount [1670]
syscall: futex
err = ETIMEDOUT 39
irqbalance [1462]
syscall: openat
err = ENOENT 4
perf [7888]
syscall: lseek
err = ESPIPE 1
syscall: open
err = ENOENT 24
perf [7889]
syscall: ioctl
err = EINVAL 1
syscall: readlink
err = EINVAL 2
syscall: open
err = ENOENT 389
syscall: stat
err = ENOENT 141
syscall: lseek
err = ESPIPE 3
[root@emilia ~]#
[root@emilia ~]# perf trace failed-syscalls-by-pid 1670
Press control+C to stop and show the summary
^C
syscall errors:
comm [pid] count
------------------------------ ----------
automount [1670]
syscall: futex
err = ETIMEDOUT 2
[root@emilia ~]#
[root@emilia ~]#
[root@emilia ~]#
[root@emilia ~]# perf trace failed-syscalls-by-pid automount
Press control+C to stop and show the summary
^C
syscall errors for automount:
comm [pid] count
------------------------------ ----------
automount [1669]
syscall: futex
err = ETIMEDOUT 1
automount [1670]
syscall: futex
err = ETIMEDOUT 5
[root@emilia ~]#
Cc: David S. Miller <davem@davemloft.net>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Tom Zanussi <tzanussi@gmail.com>
LKML-Reference: <new-submission>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
73 lines
2 KiB
Python
73 lines
2 KiB
Python
# failed system call counts, by pid
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# (c) 2010, Tom Zanussi <tzanussi@gmail.com>
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# Licensed under the terms of the GNU GPL License version 2
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#
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# Displays system-wide failed system call totals, broken down by pid.
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# If a [comm] arg is specified, only syscalls called by [comm] are displayed.
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import os
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import sys
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sys.path.append(os.environ['PERF_EXEC_PATH'] + \
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'/scripts/python/Perf-Trace-Util/lib/Perf/Trace')
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from perf_trace_context import *
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from Core import *
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from Util import *
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usage = "perf trace -s syscall-counts-by-pid.py [comm|pid]\n";
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for_comm = None
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for_pid = None
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if len(sys.argv) > 2:
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sys.exit(usage)
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if len(sys.argv) > 1:
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try:
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for_pid = int(sys.argv[1])
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except:
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for_comm = sys.argv[1]
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syscalls = autodict()
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def trace_begin():
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print "Press control+C to stop and show the summary"
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def trace_end():
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print_error_totals()
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def raw_syscalls__sys_exit(event_name, context, common_cpu,
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common_secs, common_nsecs, common_pid, common_comm,
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id, ret):
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if (for_comm and common_comm != for_comm) or \
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(for_pid and common_pid != for_pid ):
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return
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if ret < 0:
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try:
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syscalls[common_comm][common_pid][id][ret] += 1
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except TypeError:
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syscalls[common_comm][common_pid][id][ret] = 1
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def print_error_totals():
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if for_comm is not None:
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print "\nsyscall errors for %s:\n\n" % (for_comm),
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else:
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print "\nsyscall errors:\n\n",
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print "%-30s %10s\n" % ("comm [pid]", "count"),
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print "%-30s %10s\n" % ("------------------------------", \
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"----------"),
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comm_keys = syscalls.keys()
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for comm in comm_keys:
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pid_keys = syscalls[comm].keys()
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for pid in pid_keys:
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print "\n%s [%d]\n" % (comm, pid),
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id_keys = syscalls[comm][pid].keys()
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for id in id_keys:
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print " syscall: %-16s\n" % syscall_name(id),
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ret_keys = syscalls[comm][pid][id].keys()
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for ret, val in sorted(syscalls[comm][pid][id].iteritems(), key = lambda(k, v): (v, k), reverse = True):
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print " err = %-20s %10d\n" % (strerror(ret), val),
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