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: /usr/src/linux-headers-5.15.0-126/tools/perf/scripts/perl/ [ drwxr-xr-x ]

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: failed-syscalls.pl

# failed system call counts
# (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
# If a [comm] arg is specified, only syscalls called by [comm] are displayed.

use lib "$ENV{'PERF_EXEC_PATH'}/scripts/perl/Perf-Trace-Util/lib";
use lib "./Perf-Trace-Util/lib";
use Perf::Trace::Core;
use Perf::Trace::Context;
use Perf::Trace::Util;

my $for_comm = shift;

my %failed_syscalls;

sub raw_syscalls::sys_exit
{
	my ($event_name, $context, $common_cpu, $common_secs, $common_nsecs,
	    $common_pid, $common_comm, $common_callchain,
	    $id, $ret) = @_;

if ($ret < 0) {
	    $failed_syscalls{$common_comm}++;
	}
}

sub syscalls::sys_exit
{
	raw_syscalls::sys_exit(@_)
}

sub trace_end
{
    printf("\nfailed syscalls by comm:\n\n");

printf("%-20s  %10s\n", "comm", "# errors");
    printf("%-20s  %6s  %10s\n", "--------------------", "----------");

foreach my $comm (sort {$failed_syscalls{$b} <=> $failed_syscalls{$a}}
		      keys %failed_syscalls) {
	next if ($for_comm && $comm ne $for_comm);

printf("%-20s  %10s\n", $comm, $failed_syscalls{$comm});
    }
}

NAME	TYPE	LAST MODIFIED	SIZE	OWNER / GROUP	PERMISSIONS	ACTION
..
check-perf-trace.pl	f!le	2021-10-31 20:53	2.62 KB	root / root	-rw-r--r--
failed-syscalls.pl	f!le	2021-10-31 20:53	1.15 KB	root / root	-rw-r--r--
rw-by-file.pl	f!le	2021-10-31 20:53	2.87 KB	root / root	-rw-r--r--
rw-by-pid.pl	f!le	2021-10-31 20:53	5.16 KB	root / root	-rw-r--r--
rwtop.pl	f!le	2021-10-31 20:53	4.54 KB	root / root	-rw-r--r--
wakeup-latency.pl	f!le	2021-10-31 20:53	2.75 KB	root / root	-rw-r--r--