mirror of https://gitee.com/openkylin/linux.git
perf trace: Add perf trace scripting support modules for Perl
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>
This commit is contained in:
Tom Zanussi
Ingo Molnar
parent
16c632de64
commit
bcefe12eff
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@ -980,6 +980,13 @@ export perfexec_instdir
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install: all
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$(INSTALL) -d -m 755 '$(DESTDIR_SQ)$(bindir_SQ)'
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$(INSTALL) perf$X '$(DESTDIR_SQ)$(bindir_SQ)'
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$(INSTALL) -d -m 755 '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/scripts/perl/Perf-Trace-Util/lib/Perf/Trace'
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$(INSTALL) -d -m 755 '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/scripts/perl/bin'
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$(INSTALL) scripts/perl/Perf-Trace-Util/lib/Perf/Trace/* -t '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/scripts/perl/Perf-Trace-Util/lib/Perf/Trace'
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$(INSTALL) scripts/perl/*.pl -t '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/scripts/perl'
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$(INSTALL) scripts/perl/bin/* -t '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/scripts/perl/bin'
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$(INSTALL) scripts/perl/Perf-Trace-Util/Makefile.PL -t '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/scripts/perl/Perf-Trace-Util'
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$(INSTALL) scripts/perl/Perf-Trace-Util/README -t '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/scripts/perl/Perf-Trace-Util'
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ifdef BUILT_INS
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$(INSTALL) -d -m 755 '$(DESTDIR_SQ)$(perfexec_instdir_SQ)'
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$(INSTALL) $(BUILT_INS) '$(DESTDIR_SQ)$(perfexec_instdir_SQ)'
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@ -0,0 +1,12 @@
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use 5.010000;
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use ExtUtils::MakeMaker;
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# See lib/ExtUtils/MakeMaker.pm for details of how to influence
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# the contents of the Makefile that is written.
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WriteMakefile(
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NAME => 'Perf::Trace::Util',
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VERSION_FROM => 'lib/Perf/Trace/Util.pm', # finds $VERSION
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PREREQ_PM => {}, # e.g., Module::Name => 1.1
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($] >= 5.005 ? ## Add these new keywords supported since 5.005
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(ABSTRACT_FROM => 'lib/Perf/Trace/Util.pm', # retrieve abstract from module
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AUTHOR => 'Tom Zanussi <tzanussi@gmail.com>') : ()),
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);
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@ -0,0 +1,35 @@
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Perf-Trace-Util version 0.01
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============================
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This module contains utility functions for use with perf trace.
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INSTALLATION
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Building perf with perf trace Perl scripting should install this
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module in the right place.
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You should make sure libperl is installed first e.g. apt-get install
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libperl-dev.
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DEPENDENCIES
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This module requires these other modules and libraries:
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blah blah blah
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COPYRIGHT AND LICENCE
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Put the correct copyright and licence information here.
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Copyright (C) 2009 by Tom Zanussi <tzanussi@gmail.com>
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This library is free software; you can redistribute it and/or modify
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it under the same terms as Perl itself, either Perl version 5.10.0 or,
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at your option, any later version of Perl 5 you may have available.
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Alternatively, this software may be distributed under the terms of the
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GNU General Public License ("GPL") version 2 as published by the Free
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Software Foundation.
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@ -0,0 +1,157 @@
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package Perf::Trace::Core;
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use 5.010000;
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use strict;
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use warnings;
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require Exporter;
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our @ISA = qw(Exporter);
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our %EXPORT_TAGS = ( 'all' => [ qw(
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) ] );
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our @EXPORT_OK = ( @{ $EXPORT_TAGS{'all'} } );
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our @EXPORT = qw(
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define_flag_field define_flag_value flag_str dump_flag_fields
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define_symbolic_field define_symbolic_value symbol_str dump_symbolic_fields
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);
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our $VERSION = '0.01';
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my %flag_fields;
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my %symbolic_fields;
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sub flag_str
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{
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my ($event_name, $field_name, $value) = @_;
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my $string;
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if ($flag_fields{$event_name}{$field_name}) {
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my $print_delim = 0;
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foreach my $idx (sort {$a <=> $b} keys %{$flag_fields{$event_name}{$field_name}{"values"}}) {
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if (!$value && !$idx) {
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$string .= "$flag_fields{$event_name}{$field_name}{'values'}{$idx}";
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last;
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}
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if ($idx && ($value & $idx) == $idx) {
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if ($print_delim && $flag_fields{$event_name}{$field_name}{'delim'}) {
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$string .= " $flag_fields{$event_name}{$field_name}{'delim'} ";
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}
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$string .= "$flag_fields{$event_name}{$field_name}{'values'}{$idx}";
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$print_delim = 1;
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$value &= ~$idx;
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}
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}
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}
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return $string;
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}
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sub define_flag_field
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{
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my ($event_name, $field_name, $delim) = @_;
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$flag_fields{$event_name}{$field_name}{"delim"} = $delim;
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}
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sub define_flag_value
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{
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my ($event_name, $field_name, $value, $field_str) = @_;
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$flag_fields{$event_name}{$field_name}{"values"}{$value} = $field_str;
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}
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sub dump_flag_fields
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{
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for my $event (keys %flag_fields) {
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print "event $event:\n";
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for my $field (keys %{$flag_fields{$event}}) {
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print " field: $field:\n";
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print " delim: $flag_fields{$event}{$field}{'delim'}\n";
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foreach my $idx (sort {$a <=> $b} keys %{$flag_fields{$event}{$field}{"values"}}) {
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print " value $idx: $flag_fields{$event}{$field}{'values'}{$idx}\n";
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}
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}
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}
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}
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sub symbol_str
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{
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my ($event_name, $field_name, $value) = @_;
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if ($symbolic_fields{$event_name}{$field_name}) {
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foreach my $idx (sort {$a <=> $b} keys %{$symbolic_fields{$event_name}{$field_name}{"values"}}) {
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if (!$value && !$idx) {
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return "$symbolic_fields{$event_name}{$field_name}{'values'}{$idx}";
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last;
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}
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if ($value == $idx) {
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return "$symbolic_fields{$event_name}{$field_name}{'values'}{$idx}";
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}
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}
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}
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return undef;
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}
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sub define_symbolic_field
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{
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my ($event_name, $field_name) = @_;
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# nothing to do, really
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}
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sub define_symbolic_value
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{
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my ($event_name, $field_name, $value, $field_str) = @_;
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$symbolic_fields{$event_name}{$field_name}{"values"}{$value} = $field_str;
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}
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sub dump_symbolic_fields
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{
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for my $event (keys %symbolic_fields) {
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print "event $event:\n";
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for my $field (keys %{$symbolic_fields{$event}}) {
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print " field: $field:\n";
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foreach my $idx (sort {$a <=> $b} keys %{$symbolic_fields{$event}{$field}{"values"}}) {
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print " value $idx: $symbolic_fields{$event}{$field}{'values'}{$idx}\n";
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}
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}
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}
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}
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1;
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__END__
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=head1 NAME
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Perf::Trace::Core - Perl extension for perf trace
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=head1 SYNOPSIS
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use Perf::Trace::Core
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=head1 SEE ALSO
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Perf (trace) documentation
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=head1 AUTHOR
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Tom Zanussi, E<lt>tzanussi@gmail.com<gt>
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=head1 COPYRIGHT AND LICENSE
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Copyright (C) 2009 by Tom Zanussi
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This library is free software; you can redistribute it and/or modify
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it under the same terms as Perl itself, either Perl version 5.10.0 or,
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at your option, any later version of Perl 5 you may have available.
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Alternatively, this software may be distributed under the terms of the
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GNU General Public License ("GPL") version 2 as published by the Free
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Software Foundation.
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=cut
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@ -0,0 +1,88 @@
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package Perf::Trace::Util;
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use 5.010000;
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use strict;
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use warnings;
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require Exporter;
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our @ISA = qw(Exporter);
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our %EXPORT_TAGS = ( 'all' => [ qw(
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) ] );
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our @EXPORT_OK = ( @{ $EXPORT_TAGS{'all'} } );
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our @EXPORT = qw(
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avg nsecs nsecs_secs nsecs_nsecs nsecs_usecs print_nsecs
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);
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our $VERSION = '0.01';
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sub avg
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{
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my ($total, $n) = @_;
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return $total / $n;
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}
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my $NSECS_PER_SEC = 1000000000;
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sub nsecs
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{
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my ($secs, $nsecs) = @_;
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return $secs * $NSECS_PER_SEC + $nsecs;
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}
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sub nsecs_secs {
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my ($nsecs) = @_;
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return $nsecs / $NSECS_PER_SEC;
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}
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sub nsecs_nsecs {
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my ($nsecs) = @_;
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return $nsecs - nsecs_secs($nsecs);
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}
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sub nsecs_str {
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my ($nsecs) = @_;
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my $str = sprintf("%5u.%09u", nsecs_secs($nsecs), nsecs_nsecs($nsecs));
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return $str;
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}
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1;
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__END__
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=head1 NAME
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Perf::Trace::Util - Perl extension for perf trace
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=head1 SYNOPSIS
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use Perf::Trace::Util;
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=head1 SEE ALSO
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Perf (trace) documentation
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=head1 AUTHOR
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Tom Zanussi, E<lt>tzanussi@gmail.com<gt>
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=head1 COPYRIGHT AND LICENSE
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Copyright (C) 2009 by Tom Zanussi
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This library is free software; you can redistribute it and/or modify
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it under the same terms as Perl itself, either Perl version 5.10.0 or,
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at your option, any later version of Perl 5 you may have available.
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Alternatively, this software may be distributed under the terms of the
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GNU General Public License ("GPL") version 2 as published by the Free
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Software Foundation.
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=cut
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@ -0,0 +1,105 @@
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#!/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 files read/written to for a given program
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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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# change this to the comm of the program you're interested in
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my $for_comm = "perf";
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my %reads;
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my %writes;
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sub syscalls::sys_enter_read
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{
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my ($event_name, $context, $common_cpu, $common_secs, $common_nsecs,
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$common_pid, $common_comm, $nr, $fd, $buf, $count) = @_;
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if ($common_comm eq $for_comm) {
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$reads{$fd}{bytes_requested} += $count;
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$reads{$fd}{total_reads}++;
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}
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}
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sub syscalls::sys_enter_write
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{
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my ($event_name, $context, $common_cpu, $common_secs, $common_nsecs,
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$common_pid, $common_comm, $nr, $fd, $buf, $count) = @_;
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if ($common_comm eq $for_comm) {
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$writes{$fd}{bytes_written} += $count;
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$writes{$fd}{total_writes}++;
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}
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}
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sub trace_end
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{
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printf("file read counts for $for_comm:\n\n");
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printf("%6s %10s %10s\n", "fd", "# reads", "bytes_requested");
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printf("%6s %10s %10s\n", "------", "----------", "-----------");
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foreach my $fd (sort {$reads{$b}{bytes_requested} <=>
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$reads{$a}{bytes_requested}} keys %reads) {
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my $total_reads = $reads{$fd}{total_reads};
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my $bytes_requested = $reads{$fd}{bytes_requested};
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printf("%6u %10u %10u\n", $fd, $total_reads, $bytes_requested);
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}
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printf("\nfile write counts for $for_comm:\n\n");
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printf("%6s %10s %10s\n", "fd", "# writes", "bytes_written");
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printf("%6s %10s %10s\n", "------", "----------", "-----------");
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foreach my $fd (sort {$writes{$b}{bytes_written} <=>
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$writes{$a}{bytes_written}} keys %writes) {
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my $total_writes = $writes{$fd}{total_writes};
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my $bytes_written = $writes{$fd}{bytes_written};
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printf("%6u %10u %10u\n", $fd, $total_writes, $bytes_written);
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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{$event_name}++;
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}
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@ -0,0 +1,170 @@
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#!/usr/bin/perl -w
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# (c) 2009, Tom Zanussi <tzanussi@gmail.com>
|
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# Licensed under the terms of the GNU GPL License version 2
|
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|
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# Display r/w activity for all processes
|
||||
|
||||
# The common_* event handler fields are the most useful fields common to
|
||||
# all events. They don't necessarily correspond to the 'common_*' fields
|
||||
# in the status files. Those fields not available as handler params can
|
||||
# be retrieved via script functions of the form get_common_*().
|
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|
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use 5.010000;
|
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use strict;
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use warnings;
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|
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use lib "$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) {
|
||||
$writes{$common_pid}{errors}{$ret}++;
|
||||
}
|
||||
}
|
||||
|
||||
sub syscalls::sys_enter_write
|
||||
{
|
||||
my ($event_name, $context, $common_cpu, $common_secs, $common_nsecs,
|
||||
$common_pid, $common_comm,
|
||||
$nr, $fd, $buf, $count) = @_;
|
||||
|
||||
$writes{$common_pid}{bytes_written} += $count;
|
||||
$writes{$common_pid}{total_writes}++;
|
||||
$writes{$common_pid}{comm} = $common_comm;
|
||||
}
|
||||
|
||||
sub trace_end
|
||||
{
|
||||
printf("read counts by pid:\n\n");
|
||||
|
||||
printf("%6s %20s %10s %10s %10s\n", "pid", "comm",
|
||||
"# reads", "bytes_requested", "bytes_read");
|
||||
printf("%6s %-20s %10s %10s %10s\n", "------", "--------------------",
|
||||
"-----------", "----------", "----------");
|
||||
|
||||
foreach my $pid (sort {$reads{$b}{bytes_read} <=>
|
||||
$reads{$a}{bytes_read}} keys %reads) {
|
||||
my $comm = $reads{$pid}{comm};
|
||||
my $total_reads = $reads{$pid}{total_reads};
|
||||
my $bytes_requested = $reads{$pid}{bytes_requested};
|
||||
my $bytes_read = $reads{$pid}{bytes_read};
|
||||
|
||||
printf("%6s %-20s %10s %10s %10s\n", $pid, $comm,
|
||||
$total_reads, $bytes_requested, $bytes_read);
|
||||
}
|
||||
|
||||
printf("\nfailed reads by pid:\n\n");
|
||||
|
||||
printf("%6s %20s %6s %10s\n", "pid", "comm", "error #", "# errors");
|
||||
printf("%6s %20s %6s %10s\n", "------", "--------------------",
|
||||
"------", "----------");
|
||||
|
||||
foreach my $pid (keys %reads) {
|
||||
my $comm = $reads{$pid}{comm};
|
||||
foreach my $err (sort {$reads{$b}{comm} cmp $reads{$a}{comm}}
|
||||
keys %{$reads{$pid}{errors}}) {
|
||||
my $errors = $reads{$pid}{errors}{$err};
|
||||
|
||||
printf("%6d %-20s %6d %10s\n", $pid, $comm, $err, $errors);
|
||||
}
|
||||
}
|
||||
|
||||
printf("\nwrite counts by pid:\n\n");
|
||||
|
||||
printf("%6s %20s %10s %10s\n", "pid", "comm",
|
||||
"# writes", "bytes_written");
|
||||
printf("%6s %-20s %10s %10s\n", "------", "--------------------",
|
||||
"-----------", "----------");
|
||||
|
||||
foreach my $pid (sort {$writes{$b}{bytes_written} <=>
|
||||
$writes{$a}{bytes_written}} keys %writes) {
|
||||
my $comm = $writes{$pid}{comm};
|
||||
my $total_writes = $writes{$pid}{total_writes};
|
||||
my $bytes_written = $writes{$pid}{bytes_written};
|
||||
|
||||
printf("%6s %-20s %10s %10s\n", $pid, $comm,
|
||||
$total_writes, $bytes_written);
|
||||
}
|
||||
|
||||
printf("\nfailed writes by pid:\n\n");
|
||||
|
||||
printf("%6s %20s %6s %10s\n", "pid", "comm", "error #", "# errors");
|
||||
printf("%6s %20s %6s %10s\n", "------", "--------------------",
|
||||
"------", "----------");
|
||||
|
||||
foreach my $pid (keys %writes) {
|
||||
my $comm = $writes{$pid}{comm};
|
||||
foreach my $err (sort {$writes{$b}{comm} cmp $writes{$a}{comm}}
|
||||
keys %{$writes{$pid}{errors}}) {
|
||||
my $errors = $writes{$pid}{errors}{$err};
|
||||
|
||||
printf("%6d %-20s %6d %10s\n", $pid, $comm, $err, $errors);
|
||||
}
|
||||
}
|
||||
|
||||
print_unhandled();
|
||||
}
|
||||
|
||||
my %unhandled;
|
||||
|
||||
sub print_unhandled
|
||||
{
|
||||
if ((scalar keys %unhandled) == 0) {
|
||||
return;
|
||||
}
|
||||
|
||||
print "\nunhandled events:\n\n";
|
||||
|
||||
printf("%-40s %10s\n", "event", "count");
|
||||
printf("%-40s %10s\n", "----------------------------------------",
|
||||
"-----------");
|
||||
|
||||
foreach my $event_name (keys %unhandled) {
|
||||
printf("%-40s %10d\n", $event_name, $unhandled{$event_name});
|
||||
}
|
||||
}
|
||||
|
||||
sub trace_unhandled
|
||||
{
|
||||
my ($event_name, $context, $common_cpu, $common_secs, $common_nsecs,
|
||||
$common_pid, $common_comm) = @_;
|
||||
|
||||
$unhandled{$event_name}++;
|
||||
}
|
||||
|
|
@ -0,0 +1,103 @@
|
|||
#!/usr/bin/perl -w
|
||||
# (c) 2009, Tom Zanussi <tzanussi@gmail.com>
|
||||
# Licensed under the terms of the GNU GPL License version 2
|
||||
|
||||
# Display avg/min/max wakeup latency
|
||||
|
||||
# The common_* event handler fields are the most useful fields common to
|
||||
# all events. They don't necessarily correspond to the 'common_*' fields
|
||||
# in the status files. Those fields not available as handler params can
|
||||
# be retrieved via script functions of the form get_common_*().
|
||||
|
||||
use 5.010000;
|
||||
use strict;
|
||||
use warnings;
|
||||
|
||||
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::Util;
|
||||
|
||||
my %last_wakeup;
|
||||
|
||||
my $max_wakeup_latency;
|
||||
my $min_wakeup_latency;
|
||||
my $total_wakeup_latency;
|
||||
my $total_wakeups;
|
||||
|
||||
sub sched::sched_switch
|
||||
{
|
||||
my ($event_name, $context, $common_cpu, $common_secs, $common_nsecs,
|
||||
$common_pid, $common_comm,
|
||||
$prev_comm, $prev_pid, $prev_prio, $prev_state, $next_comm, $next_pid,
|
||||
$next_prio) = @_;
|
||||
|
||||
my $wakeup_ts = $last_wakeup{$common_cpu}{ts};
|
||||
if ($wakeup_ts) {
|
||||
my $switch_ts = nsecs($common_secs, $common_nsecs);
|
||||
my $wakeup_latency = $switch_ts - $wakeup_ts;
|
||||
if ($wakeup_latency > $max_wakeup_latency) {
|
||||
$max_wakeup_latency = $wakeup_latency;
|
||||
}
|
||||
if ($wakeup_latency < $min_wakeup_latency) {
|
||||
$min_wakeup_latency = $wakeup_latency;
|
||||
}
|
||||
$total_wakeup_latency += $wakeup_latency;
|
||||
$total_wakeups++;
|
||||
}
|
||||
$last_wakeup{$common_cpu}{ts} = 0;
|
||||
}
|
||||
|
||||
sub sched::sched_wakeup
|
||||
{
|
||||
my ($event_name, $context, $common_cpu, $common_secs, $common_nsecs,
|
||||
$common_pid, $common_comm,
|
||||
$comm, $pid, $prio, $success, $target_cpu) = @_;
|
||||
|
||||
$last_wakeup{$target_cpu}{ts} = nsecs($common_secs, $common_nsecs);
|
||||
}
|
||||
|
||||
sub trace_begin
|
||||
{
|
||||
$min_wakeup_latency = 1000000000;
|
||||
$max_wakeup_latency = 0;
|
||||
}
|
||||
|
||||
sub trace_end
|
||||
{
|
||||
printf("wakeup_latency stats:\n\n");
|
||||
print "total_wakeups: $total_wakeups\n";
|
||||
printf("avg_wakeup_latency (ns): %u\n",
|
||||
avg($total_wakeup_latency, $total_wakeups));
|
||||
printf("min_wakeup_latency (ns): %u\n", $min_wakeup_latency);
|
||||
printf("max_wakeup_latency (ns): %u\n", $max_wakeup_latency);
|
||||
|
||||
print_unhandled();
|
||||
}
|
||||
|
||||
my %unhandled;
|
||||
|
||||
sub print_unhandled
|
||||
{
|
||||
if ((scalar keys %unhandled) == 0) {
|
||||
return;
|
||||
}
|
||||
|
||||
print "\nunhandled events:\n\n";
|
||||
|
||||
printf("%-40s %10s\n", "event", "count");
|
||||
printf("%-40s %10s\n", "----------------------------------------",
|
||||
"-----------");
|
||||
|
||||
foreach my $event_name (keys %unhandled) {
|
||||
printf("%-40s %10d\n", $event_name, $unhandled{$event_name});
|
||||
}
|
||||
}
|
||||
|
||||
sub trace_unhandled
|
||||
{
|
||||
my ($event_name, $context, $common_cpu, $common_secs, $common_nsecs,
|
||||
$common_pid, $common_comm) = @_;
|
||||
|
||||
$unhandled{$event_name}++;
|
||||
}
|
||||
|
|
@ -0,0 +1,129 @@
|
|||
#!/usr/bin/perl -w
|
||||
# (c) 2009, Tom Zanussi <tzanussi@gmail.com>
|
||||
# Licensed under the terms of the GNU GPL License version 2
|
||||
|
||||
# Displays workqueue stats
|
||||
#
|
||||
# Usage:
|
||||
#
|
||||
# perf record -c 1 -f -a -R -e workqueue:workqueue_creation -e
|
||||
# workqueue:workqueue_destruction -e workqueue:workqueue_execution
|
||||
# -e workqueue:workqueue_insertion
|
||||
#
|
||||
# perf trace -p -s tools/perf/scripts/perl/workqueue-stats.pl
|
||||
|
||||
use 5.010000;
|
||||
use strict;
|
||||
use warnings;
|
||||
|
||||
use lib "$ENV{'PERF_EXEC_PATH'}/scripts/perl/Perf-Trace-Util/lib";
|
||||
use lib "./Perf-Trace-Util/lib";
|
||||
use Perf::Trace::Core;
|
||||
use Perf::Trace::Util;
|
||||
|
||||
my @cpus;
|
||||
|
||||
sub workqueue::workqueue_destruction
|
||||
{
|
||||
my ($event_name, $context, $common_cpu, $common_secs, $common_nsecs,
|
||||
$common_pid, $common_comm,
|
||||
$thread_comm, $thread_pid) = @_;
|
||||
|
||||
$cpus[$common_cpu]{$thread_pid}{destroyed}++;
|
||||
$cpus[$common_cpu]{$thread_pid}{comm} = $thread_comm;
|
||||
}
|
||||
|
||||
sub workqueue::workqueue_creation
|
||||
{
|
||||
my ($event_name, $context, $common_cpu, $common_secs, $common_nsecs,
|
||||
$common_pid, $common_comm,
|
||||
$thread_comm, $thread_pid, $cpu) = @_;
|
||||
|
||||
$cpus[$common_cpu]{$thread_pid}{created}++;
|
||||
$cpus[$common_cpu]{$thread_pid}{comm} = $thread_comm;
|
||||
}
|
||||
|
||||
sub workqueue::workqueue_execution
|
||||
{
|
||||
my ($event_name, $context, $common_cpu, $common_secs, $common_nsecs,
|
||||
$common_pid, $common_comm,
|
||||
$thread_comm, $thread_pid, $func) = @_;
|
||||
|
||||
$cpus[$common_cpu]{$thread_pid}{executed}++;
|
||||
$cpus[$common_cpu]{$thread_pid}{comm} = $thread_comm;
|
||||
}
|
||||
|
||||
sub workqueue::workqueue_insertion
|
||||
{
|
||||
my ($event_name, $context, $common_cpu, $common_secs, $common_nsecs,
|
||||
$common_pid, $common_comm,
|
||||
$thread_comm, $thread_pid, $func) = @_;
|
||||
|
||||
$cpus[$common_cpu]{$thread_pid}{inserted}++;
|
||||
$cpus[$common_cpu]{$thread_pid}{comm} = $thread_comm;
|
||||
}
|
||||
|
||||
sub trace_end
|
||||
{
|
||||
print "workqueue work stats:\n\n";
|
||||
my $cpu = 0;
|
||||
printf("%3s %6s %6s\t%-20s\n", "cpu", "ins", "exec", "name");
|
||||
printf("%3s %6s %6s\t%-20s\n", "---", "---", "----", "----");
|
||||
foreach my $pidhash (@cpus) {
|
||||
while ((my $pid, my $wqhash) = each %$pidhash) {
|
||||
my $ins = $$wqhash{'inserted'};
|
||||
my $exe = $$wqhash{'executed'};
|
||||
my $comm = $$wqhash{'comm'};
|
||||
if ($ins || $exe) {
|
||||
printf("%3u %6u %6u\t%-20s\n", $cpu, $ins, $exe, $comm);
|
||||
}
|
||||
}
|
||||
$cpu++;
|
||||
}
|
||||
|
||||
$cpu = 0;
|
||||
print "\nworkqueue lifecycle stats:\n\n";
|
||||
printf("%3s %6s %6s\t%-20s\n", "cpu", "created", "destroyed", "name");
|
||||
printf("%3s %6s %6s\t%-20s\n", "---", "-------", "---------", "----");
|
||||
foreach my $pidhash (@cpus) {
|
||||
while ((my $pid, my $wqhash) = each %$pidhash) {
|
||||
my $created = $$wqhash{'created'};
|
||||
my $destroyed = $$wqhash{'destroyed'};
|
||||
my $comm = $$wqhash{'comm'};
|
||||
if ($created || $destroyed) {
|
||||
printf("%3u %6u %6u\t%-20s\n", $cpu, $created, $destroyed,
|
||||
$comm);
|
||||
}
|
||||
}
|
||||
$cpu++;
|
||||
}
|
||||
|
||||
print_unhandled();
|
||||
}
|
||||
|
||||
my %unhandled;
|
||||
|
||||
sub print_unhandled
|
||||
{
|
||||
if ((scalar keys %unhandled) == 0) {
|
||||
return;
|
||||
}
|
||||
|
||||
print "\nunhandled events:\n\n";
|
||||
|
||||
printf("%-40s %10s\n", "event", "count");
|
||||
printf("%-40s %10s\n", "----------------------------------------",
|
||||
"-----------");
|
||||
|
||||
foreach my $event_name (keys %unhandled) {
|
||||
printf("%-40s %10d\n", $event_name, $unhandled{$event_name});
|
||||
}
|
||||
}
|
||||
|
||||
sub trace_unhandled
|
||||
{
|
||||
my ($event_name, $context, $common_cpu, $common_secs, $common_nsecs,
|
||||
$common_pid, $common_comm) = @_;
|
||||
|
||||
$unhandled{$event_name}++;
|
||||
}
|
||||
Loading…
Reference in New Issue