07100877ea
Older kernels (e.g., RHEL6) do system call tracing via the
syscalls:sys_{enter,exit} tracepoints rather than using raw_syscalls:*.
Update perf python and perl scripts to fallback to syscalls:* when
raw_syscalls:* isn't available.
Signed-off-by: Daniel Bristot de Oliveira <bristot@redhat.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Luis Claudio R. Goncalves <lgoncalv@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/5a6c64081a3375bc3bc66351b14559678ef4d71e.1402507908.git.bristot@redhat.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
47 lines
1.1 KiB
Raku
47 lines
1.1 KiB
Raku
# failed system call counts
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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
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# If a [comm] arg is specified, only syscalls called by [comm] are displayed.
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use lib "$ENV{'PERF_EXEC_PATH'}/scripts/perl/Perf-Trace-Util/lib";
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use lib "./Perf-Trace-Util/lib";
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use Perf::Trace::Core;
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use Perf::Trace::Context;
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use Perf::Trace::Util;
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my $for_comm = shift;
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my %failed_syscalls;
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sub raw_syscalls::sys_exit
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{
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my ($event_name, $context, $common_cpu, $common_secs, $common_nsecs,
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$common_pid, $common_comm,
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$id, $ret) = @_;
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if ($ret < 0) {
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$failed_syscalls{$common_comm}++;
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}
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}
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sub syscalls::sys_exit
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{
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raw_syscalls::sys_exit(@_)
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}
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sub trace_end
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{
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printf("\nfailed syscalls by comm:\n\n");
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printf("%-20s %10s\n", "comm", "# errors");
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printf("%-20s %6s %10s\n", "--------------------", "----------");
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foreach my $comm (sort {$failed_syscalls{$b} <=> $failed_syscalls{$a}}
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keys %failed_syscalls) {
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next if ($for_comm && $comm ne $for_comm);
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printf("%-20s %10s\n", $comm, $failed_syscalls{$comm});
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}
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}
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