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https://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
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c3f5fd287a
A couple small fixes for the failed syscalls script: - The script description says it can be restricted to a specific comm, make it so. - silence the match output in the shell script Cc: Frédéric Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> LKML-Reference: <1273466820-9330-2-git-send-email-tzanussi@gmail.com> Signed-off-by: Tom Zanussi <tzanussi@gmail.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
43 lines
1.1 KiB
Raku
43 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 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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