![Tom Zanussi](/assets/img/avatar_default.png)
Add Perf-Trace-Util Perl module and some scripts that use it. Core.pm contains Perl code to define and access flag and symbolic fields. Util.pm contains general-purpose utility functions. Also adds some makefile bits to install them in libexec/perf-core/scripts/perl (or wherever perfexec_instdir points). Signed-off-by: Tom Zanussi <tzanussi@gmail.com> Cc: fweisbec@gmail.com Cc: rostedt@goodmis.org Cc: anton@samba.org Cc: hch@infradead.org LKML-Reference: <1259133352-23685-5-git-send-email-tzanussi@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
171 lines
4.6 KiB
Perl
171 lines
4.6 KiB
Perl
#!/usr/bin/perl -w
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# (c) 2009, Tom Zanussi <tzanussi@gmail.com>
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# Licensed under the terms of the GNU GPL License version 2
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# Display r/w activity for all processes
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# The common_* event handler fields are the most useful fields common to
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# all events. They don't necessarily correspond to the 'common_*' fields
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# in the status files. Those fields not available as handler params can
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# be retrieved via script functions of the form get_common_*().
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use 5.010000;
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use strict;
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use warnings;
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use lib "$ENV{'PERF_EXEC_PATH'}/scripts/perl/Perf-Trace-Util/lib";
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use lib "./Perf-Trace-Util/lib";
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use Perf::Trace::Core;
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use Perf::Trace::Util;
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my %reads;
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my %writes;
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sub syscalls::sys_exit_read
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{
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my ($event_name, $context, $common_cpu, $common_secs, $common_nsecs,
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$common_pid, $common_comm,
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$nr, $ret) = @_;
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if ($ret > 0) {
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$reads{$common_pid}{bytes_read} += $ret;
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} else {
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if (!defined ($reads{$common_pid}{bytes_read})) {
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$reads{$common_pid}{bytes_read} = 0;
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}
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$reads{$common_pid}{errors}{$ret}++;
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}
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}
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sub syscalls::sys_enter_read
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{
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my ($event_name, $context, $common_cpu, $common_secs, $common_nsecs,
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$common_pid, $common_comm,
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$nr, $fd, $buf, $count) = @_;
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$reads{$common_pid}{bytes_requested} += $count;
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$reads{$common_pid}{total_reads}++;
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$reads{$common_pid}{comm} = $common_comm;
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}
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sub syscalls::sys_exit_write
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{
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my ($event_name, $context, $common_cpu, $common_secs, $common_nsecs,
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$common_pid, $common_comm,
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$nr, $ret) = @_;
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if ($ret <= 0) {
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$writes{$common_pid}{errors}{$ret}++;
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}
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}
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sub syscalls::sys_enter_write
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{
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my ($event_name, $context, $common_cpu, $common_secs, $common_nsecs,
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$common_pid, $common_comm,
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$nr, $fd, $buf, $count) = @_;
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$writes{$common_pid}{bytes_written} += $count;
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$writes{$common_pid}{total_writes}++;
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$writes{$common_pid}{comm} = $common_comm;
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}
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sub trace_end
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{
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printf("read counts by pid:\n\n");
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printf("%6s %20s %10s %10s %10s\n", "pid", "comm",
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"# reads", "bytes_requested", "bytes_read");
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printf("%6s %-20s %10s %10s %10s\n", "------", "--------------------",
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"-----------", "----------", "----------");
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foreach my $pid (sort {$reads{$b}{bytes_read} <=>
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$reads{$a}{bytes_read}} keys %reads) {
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my $comm = $reads{$pid}{comm};
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my $total_reads = $reads{$pid}{total_reads};
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my $bytes_requested = $reads{$pid}{bytes_requested};
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my $bytes_read = $reads{$pid}{bytes_read};
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printf("%6s %-20s %10s %10s %10s\n", $pid, $comm,
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$total_reads, $bytes_requested, $bytes_read);
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}
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printf("\nfailed reads by pid:\n\n");
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printf("%6s %20s %6s %10s\n", "pid", "comm", "error #", "# errors");
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printf("%6s %20s %6s %10s\n", "------", "--------------------",
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"------", "----------");
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foreach my $pid (keys %reads) {
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my $comm = $reads{$pid}{comm};
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foreach my $err (sort {$reads{$b}{comm} cmp $reads{$a}{comm}}
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keys %{$reads{$pid}{errors}}) {
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my $errors = $reads{$pid}{errors}{$err};
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printf("%6d %-20s %6d %10s\n", $pid, $comm, $err, $errors);
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}
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}
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printf("\nwrite counts by pid:\n\n");
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printf("%6s %20s %10s %10s\n", "pid", "comm",
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"# writes", "bytes_written");
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printf("%6s %-20s %10s %10s\n", "------", "--------------------",
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"-----------", "----------");
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foreach my $pid (sort {$writes{$b}{bytes_written} <=>
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$writes{$a}{bytes_written}} keys %writes) {
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my $comm = $writes{$pid}{comm};
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my $total_writes = $writes{$pid}{total_writes};
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my $bytes_written = $writes{$pid}{bytes_written};
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printf("%6s %-20s %10s %10s\n", $pid, $comm,
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$total_writes, $bytes_written);
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}
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printf("\nfailed writes by pid:\n\n");
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printf("%6s %20s %6s %10s\n", "pid", "comm", "error #", "# errors");
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printf("%6s %20s %6s %10s\n", "------", "--------------------",
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"------", "----------");
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foreach my $pid (keys %writes) {
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my $comm = $writes{$pid}{comm};
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foreach my $err (sort {$writes{$b}{comm} cmp $writes{$a}{comm}}
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keys %{$writes{$pid}{errors}}) {
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my $errors = $writes{$pid}{errors}{$err};
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printf("%6d %-20s %6d %10s\n", $pid, $comm, $err, $errors);
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}
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}
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print_unhandled();
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}
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my %unhandled;
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sub print_unhandled
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{
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if ((scalar keys %unhandled) == 0) {
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return;
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}
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print "\nunhandled events:\n\n";
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printf("%-40s %10s\n", "event", "count");
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printf("%-40s %10s\n", "----------------------------------------",
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"-----------");
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foreach my $event_name (keys %unhandled) {
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printf("%-40s %10d\n", $event_name, $unhandled{$event_name});
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}
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}
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sub trace_unhandled
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{
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my ($event_name, $context, $common_cpu, $common_secs, $common_nsecs,
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$common_pid, $common_comm) = @_;
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$unhandled{$event_name}++;
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}
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