v4.19.13 snapshot.
diff --git a/tools/perf/scripts/perl/Perf-Trace-Util/Build b/tools/perf/scripts/perl/Perf-Trace-Util/Build
new file mode 100644
index 0000000..34faecf
--- /dev/null
+++ b/tools/perf/scripts/perl/Perf-Trace-Util/Build
@@ -0,0 +1,5 @@
+libperf-y += Context.o
+
+CFLAGS_Context.o += $(PERL_EMBED_CCOPTS) -Wno-redundant-decls -Wno-strict-prototypes
+CFLAGS_Context.o += -Wno-unused-parameter -Wno-nested-externs -Wno-undef
+CFLAGS_Context.o += -Wno-switch-default -Wno-shadow
diff --git a/tools/perf/scripts/perl/Perf-Trace-Util/Context.c b/tools/perf/scripts/perl/Perf-Trace-Util/Context.c
new file mode 100644
index 0000000..28431d1
--- /dev/null
+++ b/tools/perf/scripts/perl/Perf-Trace-Util/Context.c
@@ -0,0 +1,138 @@
+/*
+ * This file was generated automatically by ExtUtils::ParseXS version 2.18_02 from the
+ * contents of Context.xs. Do not edit this file, edit Context.xs instead.
+ *
+ * ANY CHANGES MADE HERE WILL BE LOST!
+ *
+ */
+#include <stdbool.h>
+#ifndef HAS_BOOL
+# define HAS_BOOL 1
+#endif
+#line 1 "Context.xs"
+/*
+ * Context.xs. XS interfaces for perf script.
+ *
+ * Copyright (C) 2009 Tom Zanussi <tzanussi@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
+
+#include "EXTERN.h"
+#include "perl.h"
+#include "XSUB.h"
+#include "../../../perf.h"
+#include "../../../util/trace-event.h"
+
+#ifndef PERL_UNUSED_VAR
+# define PERL_UNUSED_VAR(var) if (0) var = var
+#endif
+
+#line 42 "Context.c"
+
+XS(XS_Perf__Trace__Context_common_pc); /* prototype to pass -Wmissing-prototypes */
+XS(XS_Perf__Trace__Context_common_pc)
+{
+#ifdef dVAR
+ dVAR; dXSARGS;
+#else
+ dXSARGS;
+#endif
+ if (items != 1)
+ Perl_croak(aTHX_ "Usage: %s(%s)", "Perf::Trace::Context::common_pc", "context");
+ PERL_UNUSED_VAR(cv); /* -W */
+ {
+ struct scripting_context * context = INT2PTR(struct scripting_context *,SvIV(ST(0)));
+ int RETVAL;
+ dXSTARG;
+
+ RETVAL = common_pc(context);
+ XSprePUSH; PUSHi((IV)RETVAL);
+ }
+ XSRETURN(1);
+}
+
+
+XS(XS_Perf__Trace__Context_common_flags); /* prototype to pass -Wmissing-prototypes */
+XS(XS_Perf__Trace__Context_common_flags)
+{
+#ifdef dVAR
+ dVAR; dXSARGS;
+#else
+ dXSARGS;
+#endif
+ if (items != 1)
+ Perl_croak(aTHX_ "Usage: %s(%s)", "Perf::Trace::Context::common_flags", "context");
+ PERL_UNUSED_VAR(cv); /* -W */
+ {
+ struct scripting_context * context = INT2PTR(struct scripting_context *,SvIV(ST(0)));
+ int RETVAL;
+ dXSTARG;
+
+ RETVAL = common_flags(context);
+ XSprePUSH; PUSHi((IV)RETVAL);
+ }
+ XSRETURN(1);
+}
+
+
+XS(XS_Perf__Trace__Context_common_lock_depth); /* prototype to pass -Wmissing-prototypes */
+XS(XS_Perf__Trace__Context_common_lock_depth)
+{
+#ifdef dVAR
+ dVAR; dXSARGS;
+#else
+ dXSARGS;
+#endif
+ if (items != 1)
+ Perl_croak(aTHX_ "Usage: %s(%s)", "Perf::Trace::Context::common_lock_depth", "context");
+ PERL_UNUSED_VAR(cv); /* -W */
+ {
+ struct scripting_context * context = INT2PTR(struct scripting_context *,SvIV(ST(0)));
+ int RETVAL;
+ dXSTARG;
+
+ RETVAL = common_lock_depth(context);
+ XSprePUSH; PUSHi((IV)RETVAL);
+ }
+ XSRETURN(1);
+}
+
+#ifdef __cplusplus
+extern "C"
+#endif
+XS(boot_Perf__Trace__Context); /* prototype to pass -Wmissing-prototypes */
+XS(boot_Perf__Trace__Context)
+{
+#ifdef dVAR
+ dVAR; dXSARGS;
+#else
+ dXSARGS;
+#endif
+ const char* file = __FILE__;
+
+ PERL_UNUSED_VAR(cv); /* -W */
+ PERL_UNUSED_VAR(items); /* -W */
+ XS_VERSION_BOOTCHECK ;
+
+ newXSproto("Perf::Trace::Context::common_pc", XS_Perf__Trace__Context_common_pc, file, "$");
+ newXSproto("Perf::Trace::Context::common_flags", XS_Perf__Trace__Context_common_flags, file, "$");
+ newXSproto("Perf::Trace::Context::common_lock_depth", XS_Perf__Trace__Context_common_lock_depth, file, "$");
+ if (PL_unitcheckav)
+ call_list(PL_scopestack_ix, PL_unitcheckav);
+ XSRETURN_YES;
+}
+
diff --git a/tools/perf/scripts/perl/Perf-Trace-Util/Context.xs b/tools/perf/scripts/perl/Perf-Trace-Util/Context.xs
new file mode 100644
index 0000000..8c7ea42
--- /dev/null
+++ b/tools/perf/scripts/perl/Perf-Trace-Util/Context.xs
@@ -0,0 +1,42 @@
+/*
+ * Context.xs. XS interfaces for perf script.
+ *
+ * Copyright (C) 2009 Tom Zanussi <tzanussi@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
+
+#include "EXTERN.h"
+#include "perl.h"
+#include "XSUB.h"
+#include "../../../perf.h"
+#include "../../../util/trace-event.h"
+
+MODULE = Perf::Trace::Context PACKAGE = Perf::Trace::Context
+PROTOTYPES: ENABLE
+
+int
+common_pc(context)
+ struct scripting_context * context
+
+int
+common_flags(context)
+ struct scripting_context * context
+
+int
+common_lock_depth(context)
+ struct scripting_context * context
+
diff --git a/tools/perf/scripts/perl/Perf-Trace-Util/Makefile.PL b/tools/perf/scripts/perl/Perf-Trace-Util/Makefile.PL
new file mode 100644
index 0000000..e899433
--- /dev/null
+++ b/tools/perf/scripts/perl/Perf-Trace-Util/Makefile.PL
@@ -0,0 +1,18 @@
+# SPDX-License-Identifier: GPL-2.0
+use 5.010000;
+use ExtUtils::MakeMaker;
+# See lib/ExtUtils/MakeMaker.pm for details of how to influence
+# the contents of the Makefile that is written.
+WriteMakefile(
+ NAME => 'Perf::Trace::Context',
+ VERSION_FROM => 'lib/Perf/Trace/Context.pm', # finds $VERSION
+ PREREQ_PM => {}, # e.g., Module::Name => 1.1
+ ($] >= 5.005 ? ## Add these new keywords supported since 5.005
+ (ABSTRACT_FROM => 'lib/Perf/Trace/Context.pm', # retrieve abstract from module
+ AUTHOR => 'Tom Zanussi <tzanussi@gmail.com>') : ()),
+ LIBS => [''], # e.g., '-lm'
+ DEFINE => '-I ../..', # e.g., '-DHAVE_SOMETHING'
+ INC => '-I.', # e.g., '-I. -I/usr/include/other'
+ # Un-comment this if you add C files to link with later:
+ OBJECT => 'Context.o', # link all the C files too
+);
diff --git a/tools/perf/scripts/perl/Perf-Trace-Util/README b/tools/perf/scripts/perl/Perf-Trace-Util/README
new file mode 100644
index 0000000..2f0c7f3
--- /dev/null
+++ b/tools/perf/scripts/perl/Perf-Trace-Util/README
@@ -0,0 +1,59 @@
+Perf-Trace-Util version 0.01
+============================
+
+This module contains utility functions for use with perf script.
+
+Core.pm and Util.pm are pure Perl modules; Core.pm contains routines
+that the core perf support for Perl calls on and should always be
+'used', while Util.pm contains useful but optional utility functions
+that scripts may want to use. Context.pm contains the Perl->C
+interface that allows scripts to access data in the embedding perf
+executable; scripts wishing to do that should 'use Context.pm'.
+
+The Perl->C perf interface is completely driven by Context.xs. If you
+want to add new Perl functions that end up accessing C data in the
+perf executable, you add desciptions of the new functions here.
+scripting_context is a pointer to the perf data in the perf executable
+that you want to access - it's passed as the second parameter,
+$context, to all handler functions.
+
+After you do that:
+
+ perl Makefile.PL # to create a Makefile for the next step
+ make # to create Context.c
+
+ edit Context.c to add const to the char* file = __FILE__ line in
+ XS(boot_Perf__Trace__Context) to silence a warning/error.
+
+ You can delete the Makefile, object files and anything else that was
+ generated e.g. blib and shared library, etc, except for of course
+ Context.c
+
+ You should then be able to run the normal perf make as usual.
+
+INSTALLATION
+
+Building perf with perf script Perl scripting should install this
+module in the right place.
+
+You should make sure libperl and ExtUtils/Embed.pm are installed first
+e.g. apt-get install libperl-dev or yum install perl-ExtUtils-Embed.
+
+DEPENDENCIES
+
+This module requires these other modules and libraries:
+
+ None
+
+COPYRIGHT AND LICENCE
+
+Copyright (C) 2009 by Tom Zanussi <tzanussi@gmail.com>
+
+This library is free software; you can redistribute it and/or modify
+it under the same terms as Perl itself, either Perl version 5.10.0 or,
+at your option, any later version of Perl 5 you may have available.
+
+Alternatively, this software may be distributed under the terms of the
+GNU General Public License ("GPL") version 2 as published by the Free
+Software Foundation.
+
diff --git a/tools/perf/scripts/perl/Perf-Trace-Util/lib/Perf/Trace/Context.pm b/tools/perf/scripts/perl/Perf-Trace-Util/lib/Perf/Trace/Context.pm
new file mode 100644
index 0000000..4e2f603
--- /dev/null
+++ b/tools/perf/scripts/perl/Perf-Trace-Util/lib/Perf/Trace/Context.pm
@@ -0,0 +1,55 @@
+package Perf::Trace::Context;
+
+use 5.010000;
+use strict;
+use warnings;
+
+require Exporter;
+
+our @ISA = qw(Exporter);
+
+our %EXPORT_TAGS = ( 'all' => [ qw(
+) ] );
+
+our @EXPORT_OK = ( @{ $EXPORT_TAGS{'all'} } );
+
+our @EXPORT = qw(
+ common_pc common_flags common_lock_depth
+);
+
+our $VERSION = '0.01';
+
+require XSLoader;
+XSLoader::load('Perf::Trace::Context', $VERSION);
+
+1;
+__END__
+=head1 NAME
+
+Perf::Trace::Context - Perl extension for accessing functions in perf.
+
+=head1 SYNOPSIS
+
+ use Perf::Trace::Context;
+
+=head1 SEE ALSO
+
+Perf (script) documentation
+
+=head1 AUTHOR
+
+Tom Zanussi, E<lt>tzanussi@gmail.com<gt>
+
+=head1 COPYRIGHT AND LICENSE
+
+Copyright (C) 2009 by Tom Zanussi
+
+This library is free software; you can redistribute it and/or modify
+it under the same terms as Perl itself, either Perl version 5.10.0 or,
+at your option, any later version of Perl 5 you may have available.
+
+Alternatively, this software may be distributed under the terms of the
+GNU General Public License ("GPL") version 2 as published by the Free
+Software Foundation.
+
+=cut
diff --git a/tools/perf/scripts/perl/Perf-Trace-Util/lib/Perf/Trace/Core.pm b/tools/perf/scripts/perl/Perf-Trace-Util/lib/Perf/Trace/Core.pm
new file mode 100644
index 0000000..9158458
--- /dev/null
+++ b/tools/perf/scripts/perl/Perf-Trace-Util/lib/Perf/Trace/Core.pm
@@ -0,0 +1,192 @@
+package Perf::Trace::Core;
+
+use 5.010000;
+use strict;
+use warnings;
+
+require Exporter;
+
+our @ISA = qw(Exporter);
+
+our %EXPORT_TAGS = ( 'all' => [ qw(
+) ] );
+
+our @EXPORT_OK = ( @{ $EXPORT_TAGS{'all'} } );
+
+our @EXPORT = qw(
+define_flag_field define_flag_value flag_str dump_flag_fields
+define_symbolic_field define_symbolic_value symbol_str dump_symbolic_fields
+trace_flag_str
+);
+
+our $VERSION = '0.01';
+
+my %trace_flags = (0x00 => "NONE",
+ 0x01 => "IRQS_OFF",
+ 0x02 => "IRQS_NOSUPPORT",
+ 0x04 => "NEED_RESCHED",
+ 0x08 => "HARDIRQ",
+ 0x10 => "SOFTIRQ");
+
+sub trace_flag_str
+{
+ my ($value) = @_;
+
+ my $string;
+
+ my $print_delim = 0;
+
+ foreach my $idx (sort {$a <=> $b} keys %trace_flags) {
+ if (!$value && !$idx) {
+ $string .= "NONE";
+ last;
+ }
+
+ if ($idx && ($value & $idx) == $idx) {
+ if ($print_delim) {
+ $string .= " | ";
+ }
+ $string .= "$trace_flags{$idx}";
+ $print_delim = 1;
+ $value &= ~$idx;
+ }
+ }
+
+ return $string;
+}
+
+my %flag_fields;
+my %symbolic_fields;
+
+sub flag_str
+{
+ my ($event_name, $field_name, $value) = @_;
+
+ my $string;
+
+ if ($flag_fields{$event_name}{$field_name}) {
+ my $print_delim = 0;
+ foreach my $idx (sort {$a <=> $b} keys %{$flag_fields{$event_name}{$field_name}{"values"}}) {
+ if (!$value && !$idx) {
+ $string .= "$flag_fields{$event_name}{$field_name}{'values'}{$idx}";
+ last;
+ }
+ if ($idx && ($value & $idx) == $idx) {
+ if ($print_delim && $flag_fields{$event_name}{$field_name}{'delim'}) {
+ $string .= " $flag_fields{$event_name}{$field_name}{'delim'} ";
+ }
+ $string .= "$flag_fields{$event_name}{$field_name}{'values'}{$idx}";
+ $print_delim = 1;
+ $value &= ~$idx;
+ }
+ }
+ }
+
+ return $string;
+}
+
+sub define_flag_field
+{
+ my ($event_name, $field_name, $delim) = @_;
+
+ $flag_fields{$event_name}{$field_name}{"delim"} = $delim;
+}
+
+sub define_flag_value
+{
+ my ($event_name, $field_name, $value, $field_str) = @_;
+
+ $flag_fields{$event_name}{$field_name}{"values"}{$value} = $field_str;
+}
+
+sub dump_flag_fields
+{
+ for my $event (keys %flag_fields) {
+ print "event $event:\n";
+ for my $field (keys %{$flag_fields{$event}}) {
+ print " field: $field:\n";
+ print " delim: $flag_fields{$event}{$field}{'delim'}\n";
+ foreach my $idx (sort {$a <=> $b} keys %{$flag_fields{$event}{$field}{"values"}}) {
+ print " value $idx: $flag_fields{$event}{$field}{'values'}{$idx}\n";
+ }
+ }
+ }
+}
+
+sub symbol_str
+{
+ my ($event_name, $field_name, $value) = @_;
+
+ if ($symbolic_fields{$event_name}{$field_name}) {
+ foreach my $idx (sort {$a <=> $b} keys %{$symbolic_fields{$event_name}{$field_name}{"values"}}) {
+ if (!$value && !$idx) {
+ return "$symbolic_fields{$event_name}{$field_name}{'values'}{$idx}";
+ last;
+ }
+ if ($value == $idx) {
+ return "$symbolic_fields{$event_name}{$field_name}{'values'}{$idx}";
+ }
+ }
+ }
+
+ return undef;
+}
+
+sub define_symbolic_field
+{
+ my ($event_name, $field_name) = @_;
+
+ # nothing to do, really
+}
+
+sub define_symbolic_value
+{
+ my ($event_name, $field_name, $value, $field_str) = @_;
+
+ $symbolic_fields{$event_name}{$field_name}{"values"}{$value} = $field_str;
+}
+
+sub dump_symbolic_fields
+{
+ for my $event (keys %symbolic_fields) {
+ print "event $event:\n";
+ for my $field (keys %{$symbolic_fields{$event}}) {
+ print " field: $field:\n";
+ foreach my $idx (sort {$a <=> $b} keys %{$symbolic_fields{$event}{$field}{"values"}}) {
+ print " value $idx: $symbolic_fields{$event}{$field}{'values'}{$idx}\n";
+ }
+ }
+ }
+}
+
+1;
+__END__
+=head1 NAME
+
+Perf::Trace::Core - Perl extension for perf script
+
+=head1 SYNOPSIS
+
+ use Perf::Trace::Core
+
+=head1 SEE ALSO
+
+Perf (script) documentation
+
+=head1 AUTHOR
+
+Tom Zanussi, E<lt>tzanussi@gmail.com<gt>
+
+=head1 COPYRIGHT AND LICENSE
+
+Copyright (C) 2009 by Tom Zanussi
+
+This library is free software; you can redistribute it and/or modify
+it under the same terms as Perl itself, either Perl version 5.10.0 or,
+at your option, any later version of Perl 5 you may have available.
+
+Alternatively, this software may be distributed under the terms of the
+GNU General Public License ("GPL") version 2 as published by the Free
+Software Foundation.
+
+=cut
diff --git a/tools/perf/scripts/perl/Perf-Trace-Util/lib/Perf/Trace/Util.pm b/tools/perf/scripts/perl/Perf-Trace-Util/lib/Perf/Trace/Util.pm
new file mode 100644
index 0000000..0535001
--- /dev/null
+++ b/tools/perf/scripts/perl/Perf-Trace-Util/lib/Perf/Trace/Util.pm
@@ -0,0 +1,94 @@
+package Perf::Trace::Util;
+
+use 5.010000;
+use strict;
+use warnings;
+
+require Exporter;
+
+our @ISA = qw(Exporter);
+
+our %EXPORT_TAGS = ( 'all' => [ qw(
+) ] );
+
+our @EXPORT_OK = ( @{ $EXPORT_TAGS{'all'} } );
+
+our @EXPORT = qw(
+avg nsecs nsecs_secs nsecs_nsecs nsecs_usecs print_nsecs
+clear_term
+);
+
+our $VERSION = '0.01';
+
+sub avg
+{
+ my ($total, $n) = @_;
+
+ return $total / $n;
+}
+
+my $NSECS_PER_SEC = 1000000000;
+
+sub nsecs
+{
+ my ($secs, $nsecs) = @_;
+
+ return $secs * $NSECS_PER_SEC + $nsecs;
+}
+
+sub nsecs_secs {
+ my ($nsecs) = @_;
+
+ return $nsecs / $NSECS_PER_SEC;
+}
+
+sub nsecs_nsecs {
+ my ($nsecs) = @_;
+
+ return $nsecs % $NSECS_PER_SEC;
+}
+
+sub nsecs_str {
+ my ($nsecs) = @_;
+
+ my $str = sprintf("%5u.%09u", nsecs_secs($nsecs), nsecs_nsecs($nsecs));
+
+ return $str;
+}
+
+sub clear_term
+{
+ print "\x1b[H\x1b[2J";
+}
+
+1;
+__END__
+=head1 NAME
+
+Perf::Trace::Util - Perl extension for perf script
+
+=head1 SYNOPSIS
+
+ use Perf::Trace::Util;
+
+=head1 SEE ALSO
+
+Perf (script) documentation
+
+=head1 AUTHOR
+
+Tom Zanussi, E<lt>tzanussi@gmail.com<gt>
+
+=head1 COPYRIGHT AND LICENSE
+
+Copyright (C) 2009 by Tom Zanussi
+
+This library is free software; you can redistribute it and/or modify
+it under the same terms as Perl itself, either Perl version 5.10.0 or,
+at your option, any later version of Perl 5 you may have available.
+
+Alternatively, this software may be distributed under the terms of the
+GNU General Public License ("GPL") version 2 as published by the Free
+Software Foundation.
+
+=cut
diff --git a/tools/perf/scripts/perl/Perf-Trace-Util/typemap b/tools/perf/scripts/perl/Perf-Trace-Util/typemap
new file mode 100644
index 0000000..8408368
--- /dev/null
+++ b/tools/perf/scripts/perl/Perf-Trace-Util/typemap
@@ -0,0 +1 @@
+struct scripting_context * T_PTR
diff --git a/tools/perf/scripts/perl/bin/check-perf-trace-record b/tools/perf/scripts/perl/bin/check-perf-trace-record
new file mode 100644
index 0000000..423ad6a
--- /dev/null
+++ b/tools/perf/scripts/perl/bin/check-perf-trace-record
@@ -0,0 +1,2 @@
+#!/bin/bash
+perf record -a -e kmem:kmalloc -e irq:softirq_entry -e kmem:kfree
diff --git a/tools/perf/scripts/perl/bin/failed-syscalls-record b/tools/perf/scripts/perl/bin/failed-syscalls-record
new file mode 100644
index 0000000..74685f3
--- /dev/null
+++ b/tools/perf/scripts/perl/bin/failed-syscalls-record
@@ -0,0 +1,3 @@
+#!/bin/bash
+(perf record -e raw_syscalls:sys_exit $@ || \
+ perf record -e syscalls:sys_exit $@) 2> /dev/null
diff --git a/tools/perf/scripts/perl/bin/failed-syscalls-report b/tools/perf/scripts/perl/bin/failed-syscalls-report
new file mode 100644
index 0000000..9f83cc1
--- /dev/null
+++ b/tools/perf/scripts/perl/bin/failed-syscalls-report
@@ -0,0 +1,10 @@
+#!/bin/bash
+# description: system-wide failed syscalls
+# args: [comm]
+if [ $# -gt 0 ] ; then
+ if ! expr match "$1" "-" > /dev/null ; then
+ comm=$1
+ shift
+ fi
+fi
+perf script $@ -s "$PERF_EXEC_PATH"/scripts/perl/failed-syscalls.pl $comm
diff --git a/tools/perf/scripts/perl/bin/rw-by-file-record b/tools/perf/scripts/perl/bin/rw-by-file-record
new file mode 100644
index 0000000..33efc86
--- /dev/null
+++ b/tools/perf/scripts/perl/bin/rw-by-file-record
@@ -0,0 +1,3 @@
+#!/bin/bash
+perf record -e syscalls:sys_enter_read -e syscalls:sys_enter_write $@
+
diff --git a/tools/perf/scripts/perl/bin/rw-by-file-report b/tools/perf/scripts/perl/bin/rw-by-file-report
new file mode 100644
index 0000000..77200b3
--- /dev/null
+++ b/tools/perf/scripts/perl/bin/rw-by-file-report
@@ -0,0 +1,10 @@
+#!/bin/bash
+# description: r/w activity for a program, by file
+# args: <comm>
+if [ $# -lt 1 ] ; then
+ echo "usage: rw-by-file <comm>"
+ exit
+fi
+comm=$1
+shift
+perf script $@ -s "$PERF_EXEC_PATH"/scripts/perl/rw-by-file.pl $comm
diff --git a/tools/perf/scripts/perl/bin/rw-by-pid-record b/tools/perf/scripts/perl/bin/rw-by-pid-record
new file mode 100644
index 0000000..7cb9db2
--- /dev/null
+++ b/tools/perf/scripts/perl/bin/rw-by-pid-record
@@ -0,0 +1,2 @@
+#!/bin/bash
+perf record -e syscalls:sys_enter_read -e syscalls:sys_exit_read -e syscalls:sys_enter_write -e syscalls:sys_exit_write $@
diff --git a/tools/perf/scripts/perl/bin/rw-by-pid-report b/tools/perf/scripts/perl/bin/rw-by-pid-report
new file mode 100644
index 0000000..a27b9f3
--- /dev/null
+++ b/tools/perf/scripts/perl/bin/rw-by-pid-report
@@ -0,0 +1,3 @@
+#!/bin/bash
+# description: system-wide r/w activity
+perf script $@ -s "$PERF_EXEC_PATH"/scripts/perl/rw-by-pid.pl
diff --git a/tools/perf/scripts/perl/bin/rwtop-record b/tools/perf/scripts/perl/bin/rwtop-record
new file mode 100644
index 0000000..7cb9db2
--- /dev/null
+++ b/tools/perf/scripts/perl/bin/rwtop-record
@@ -0,0 +1,2 @@
+#!/bin/bash
+perf record -e syscalls:sys_enter_read -e syscalls:sys_exit_read -e syscalls:sys_enter_write -e syscalls:sys_exit_write $@
diff --git a/tools/perf/scripts/perl/bin/rwtop-report b/tools/perf/scripts/perl/bin/rwtop-report
new file mode 100644
index 0000000..83e11ec
--- /dev/null
+++ b/tools/perf/scripts/perl/bin/rwtop-report
@@ -0,0 +1,20 @@
+#!/bin/bash
+# description: system-wide r/w top
+# args: [interval]
+n_args=0
+for i in "$@"
+do
+ if expr match "$i" "-" > /dev/null ; then
+ break
+ fi
+ n_args=$(( $n_args + 1 ))
+done
+if [ "$n_args" -gt 1 ] ; then
+ echo "usage: rwtop-report [interval]"
+ exit
+fi
+if [ "$n_args" -gt 0 ] ; then
+ interval=$1
+ shift
+fi
+perf script $@ -s "$PERF_EXEC_PATH"/scripts/perl/rwtop.pl $interval
diff --git a/tools/perf/scripts/perl/bin/wakeup-latency-record b/tools/perf/scripts/perl/bin/wakeup-latency-record
new file mode 100644
index 0000000..464251a
--- /dev/null
+++ b/tools/perf/scripts/perl/bin/wakeup-latency-record
@@ -0,0 +1,6 @@
+#!/bin/bash
+perf record -e sched:sched_switch -e sched:sched_wakeup $@
+
+
+
+
diff --git a/tools/perf/scripts/perl/bin/wakeup-latency-report b/tools/perf/scripts/perl/bin/wakeup-latency-report
new file mode 100644
index 0000000..889e813
--- /dev/null
+++ b/tools/perf/scripts/perl/bin/wakeup-latency-report
@@ -0,0 +1,3 @@
+#!/bin/bash
+# description: system-wide min/max/avg wakeup latency
+perf script $@ -s "$PERF_EXEC_PATH"/scripts/perl/wakeup-latency.pl
diff --git a/tools/perf/scripts/perl/check-perf-trace.pl b/tools/perf/scripts/perl/check-perf-trace.pl
new file mode 100644
index 0000000..4e7076c
--- /dev/null
+++ b/tools/perf/scripts/perl/check-perf-trace.pl
@@ -0,0 +1,106 @@
+# perf script event handlers, generated by perf script -g perl
+# (c) 2009, Tom Zanussi <tzanussi@gmail.com>
+# Licensed under the terms of the GNU GPL License version 2
+
+# This script tests basic functionality such as flag and symbol
+# strings, common_xxx() calls back into perf, begin, end, unhandled
+# events, etc. Basically, if this script runs successfully and
+# displays expected results, perl scripting support should be ok.
+
+use lib "$ENV{'PERF_EXEC_PATH'}/scripts/perl/Perf-Trace-Util/lib";
+use lib "./Perf-Trace-Util/lib";
+use Perf::Trace::Core;
+use Perf::Trace::Context;
+use Perf::Trace::Util;
+
+sub trace_begin
+{
+ print "trace_begin\n";
+}
+
+sub trace_end
+{
+ print "trace_end\n";
+
+ print_unhandled();
+}
+
+sub irq::softirq_entry
+{
+ my ($event_name, $context, $common_cpu, $common_secs, $common_nsecs,
+ $common_pid, $common_comm,
+ $vec) = @_;
+
+ print_header($event_name, $common_cpu, $common_secs, $common_nsecs,
+ $common_pid, $common_comm);
+
+ print_uncommon($context);
+
+ printf("vec=%s\n",
+ symbol_str("irq::softirq_entry", "vec", $vec));
+}
+
+sub kmem::kmalloc
+{
+ my ($event_name, $context, $common_cpu, $common_secs, $common_nsecs,
+ $common_pid, $common_comm,
+ $call_site, $ptr, $bytes_req, $bytes_alloc,
+ $gfp_flags) = @_;
+
+ print_header($event_name, $common_cpu, $common_secs, $common_nsecs,
+ $common_pid, $common_comm);
+
+ print_uncommon($context);
+
+ printf("call_site=%p, ptr=%p, bytes_req=%u, bytes_alloc=%u, ".
+ "gfp_flags=%s\n",
+ $call_site, $ptr, $bytes_req, $bytes_alloc,
+
+ flag_str("kmem::kmalloc", "gfp_flags", $gfp_flags));
+}
+
+# print trace fields not included in handler args
+sub print_uncommon
+{
+ my ($context) = @_;
+
+ printf("common_preempt_count=%d, common_flags=%s, common_lock_depth=%d, ",
+ common_pc($context), trace_flag_str(common_flags($context)),
+ common_lock_depth($context));
+
+}
+
+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}++;
+}
+
+sub print_header
+{
+ my ($event_name, $cpu, $secs, $nsecs, $pid, $comm) = @_;
+
+ printf("%-20s %5u %05u.%09u %8u %-20s ",
+ $event_name, $cpu, $secs, $nsecs, $pid, $comm);
+}
diff --git a/tools/perf/scripts/perl/failed-syscalls.pl b/tools/perf/scripts/perl/failed-syscalls.pl
new file mode 100644
index 0000000..55e7ae4
--- /dev/null
+++ b/tools/perf/scripts/perl/failed-syscalls.pl
@@ -0,0 +1,47 @@
+# failed system call counts
+# (c) 2010, Tom Zanussi <tzanussi@gmail.com>
+# Licensed under the terms of the GNU GPL License version 2
+#
+# Displays system-wide failed system call totals
+# If a [comm] arg is specified, only syscalls called by [comm] are displayed.
+
+use lib "$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,
+ $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});
+ }
+}
diff --git a/tools/perf/scripts/perl/rw-by-file.pl b/tools/perf/scripts/perl/rw-by-file.pl
new file mode 100644
index 0000000..74844ee
--- /dev/null
+++ b/tools/perf/scripts/perl/rw-by-file.pl
@@ -0,0 +1,106 @@
+#!/usr/bin/perl -w
+# (c) 2009, Tom Zanussi <tzanussi@gmail.com>
+# Licensed under the terms of the GNU GPL License version 2
+
+# Display r/w activity for files read/written to for a given program
+
+# 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 $usage = "perf script -s rw-by-file.pl <comm>\n";
+
+my $for_comm = shift or die $usage;
+
+my %reads;
+my %writes;
+
+sub syscalls::sys_enter_read
+{
+ my ($event_name, $context, $common_cpu, $common_secs, $common_nsecs,
+ $common_pid, $common_comm, $nr, $fd, $buf, $count) = @_;
+
+ if ($common_comm eq $for_comm) {
+ $reads{$fd}{bytes_requested} += $count;
+ $reads{$fd}{total_reads}++;
+ }
+}
+
+sub syscalls::sys_enter_write
+{
+ my ($event_name, $context, $common_cpu, $common_secs, $common_nsecs,
+ $common_pid, $common_comm, $nr, $fd, $buf, $count) = @_;
+
+ if ($common_comm eq $for_comm) {
+ $writes{$fd}{bytes_written} += $count;
+ $writes{$fd}{total_writes}++;
+ }
+}
+
+sub trace_end
+{
+ printf("file read counts for $for_comm:\n\n");
+
+ printf("%6s %10s %10s\n", "fd", "# reads", "bytes_requested");
+ printf("%6s %10s %10s\n", "------", "----------", "-----------");
+
+ foreach my $fd (sort {$reads{$b}{bytes_requested} <=>
+ $reads{$a}{bytes_requested}} keys %reads) {
+ my $total_reads = $reads{$fd}{total_reads};
+ my $bytes_requested = $reads{$fd}{bytes_requested};
+ printf("%6u %10u %10u\n", $fd, $total_reads, $bytes_requested);
+ }
+
+ printf("\nfile write counts for $for_comm:\n\n");
+
+ printf("%6s %10s %10s\n", "fd", "# writes", "bytes_written");
+ printf("%6s %10s %10s\n", "------", "----------", "-----------");
+
+ foreach my $fd (sort {$writes{$b}{bytes_written} <=>
+ $writes{$a}{bytes_written}} keys %writes) {
+ my $total_writes = $writes{$fd}{total_writes};
+ my $bytes_written = $writes{$fd}{bytes_written};
+ printf("%6u %10u %10u\n", $fd, $total_writes, $bytes_written);
+ }
+
+ 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}++;
+}
+
+
diff --git a/tools/perf/scripts/perl/rw-by-pid.pl b/tools/perf/scripts/perl/rw-by-pid.pl
new file mode 100644
index 0000000..9db23c9
--- /dev/null
+++ b/tools/perf/scripts/perl/rw-by-pid.pl
@@ -0,0 +1,184 @@
+#!/usr/bin/perl -w
+# (c) 2009, Tom Zanussi <tzanussi@gmail.com>
+# Licensed under the terms of the GNU GPL License version 2
+
+# 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_*().
+
+use 5.010000;
+use strict;
+use warnings;
+
+use lib "$ENV{'PERF_EXEC_PATH'}/scripts/perl/Perf-Trace-Util/lib";
+use lib "./Perf-Trace-Util/lib";
+use Perf::Trace::Core;
+use Perf::Trace::Util;
+
+my %reads;
+my %writes;
+
+sub syscalls::sys_exit_read
+{
+ my ($event_name, $context, $common_cpu, $common_secs, $common_nsecs,
+ $common_pid, $common_comm,
+ $nr, $ret) = @_;
+
+ if ($ret > 0) {
+ $reads{$common_pid}{bytes_read} += $ret;
+ } else {
+ if (!defined ($reads{$common_pid}{bytes_read})) {
+ $reads{$common_pid}{bytes_read} = 0;
+ }
+ $reads{$common_pid}{errors}{$ret}++;
+ }
+}
+
+sub syscalls::sys_enter_read
+{
+ my ($event_name, $context, $common_cpu, $common_secs, $common_nsecs,
+ $common_pid, $common_comm,
+ $nr, $fd, $buf, $count) = @_;
+
+ $reads{$common_pid}{bytes_requested} += $count;
+ $reads{$common_pid}{total_reads}++;
+ $reads{$common_pid}{comm} = $common_comm;
+}
+
+sub syscalls::sys_exit_write
+{
+ my ($event_name, $context, $common_cpu, $common_secs, $common_nsecs,
+ $common_pid, $common_comm,
+ $nr, $ret) = @_;
+
+ if ($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{$b}{bytes_read} || 0) <=>
+ ($reads{$a}{bytes_read} || 0) } keys %reads) {
+ my $comm = $reads{$pid}{comm} || "";
+ my $total_reads = $reads{$pid}{total_reads} || 0;
+ my $bytes_requested = $reads{$pid}{bytes_requested} || 0;
+ my $bytes_read = $reads{$pid}{bytes_read} || 0;
+
+ 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", "------", "--------------------",
+ "------", "----------");
+
+ my @errcounts = ();
+
+ foreach my $pid (keys %reads) {
+ foreach my $error (keys %{$reads{$pid}{errors}}) {
+ my $comm = $reads{$pid}{comm} || "";
+ my $errcount = $reads{$pid}{errors}{$error} || 0;
+ push @errcounts, [$pid, $comm, $error, $errcount];
+ }
+ }
+
+ @errcounts = sort { $b->[3] <=> $a->[3] } @errcounts;
+
+ for my $i (0 .. $#errcounts) {
+ printf("%6d %-20s %6d %10s\n", $errcounts[$i][0],
+ $errcounts[$i][1], $errcounts[$i][2], $errcounts[$i][3]);
+ }
+
+ 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{$b}{bytes_written} || 0) <=>
+ ($writes{$a}{bytes_written} || 0)} keys %writes) {
+ my $comm = $writes{$pid}{comm} || "";
+ my $total_writes = $writes{$pid}{total_writes} || 0;
+ my $bytes_written = $writes{$pid}{bytes_written} || 0;
+
+ 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", "------", "--------------------",
+ "------", "----------");
+
+ @errcounts = ();
+
+ foreach my $pid (keys %writes) {
+ foreach my $error (keys %{$writes{$pid}{errors}}) {
+ my $comm = $writes{$pid}{comm} || "";
+ my $errcount = $writes{$pid}{errors}{$error} || 0;
+ push @errcounts, [$pid, $comm, $error, $errcount];
+ }
+ }
+
+ @errcounts = sort { $b->[3] <=> $a->[3] } @errcounts;
+
+ for my $i (0 .. $#errcounts) {
+ printf("%6d %-20s %6d %10s\n", $errcounts[$i][0],
+ $errcounts[$i][1], $errcounts[$i][2], $errcounts[$i][3]);
+ }
+
+ 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}++;
+}
diff --git a/tools/perf/scripts/perl/rwtop.pl b/tools/perf/scripts/perl/rwtop.pl
new file mode 100644
index 0000000..8b20787
--- /dev/null
+++ b/tools/perf/scripts/perl/rwtop.pl
@@ -0,0 +1,203 @@
+#!/usr/bin/perl -w
+# (c) 2010, Tom Zanussi <tzanussi@gmail.com>
+# Licensed under the terms of the GNU GPL License version 2
+
+# read/write top
+#
+# Periodically displays system-wide r/w call activity, broken down by
+# pid. If an [interval] arg is specified, the display will be
+# refreshed every [interval] seconds. The default interval is 3
+# seconds.
+
+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;
+use POSIX qw/SIGALRM SA_RESTART/;
+
+my $default_interval = 3;
+my $nlines = 20;
+my $print_thread;
+my $print_pending = 0;
+
+my %reads;
+my %writes;
+
+my $interval = shift;
+if (!$interval) {
+ $interval = $default_interval;
+}
+
+sub syscalls::sys_exit_read
+{
+ my ($event_name, $context, $common_cpu, $common_secs, $common_nsecs,
+ $common_pid, $common_comm,
+ $nr, $ret) = @_;
+
+ print_check();
+
+ if ($ret > 0) {
+ $reads{$common_pid}{bytes_read} += $ret;
+ } else {
+ if (!defined ($reads{$common_pid}{bytes_read})) {
+ $reads{$common_pid}{bytes_read} = 0;
+ }
+ $reads{$common_pid}{errors}{$ret}++;
+ }
+}
+
+sub syscalls::sys_enter_read
+{
+ my ($event_name, $context, $common_cpu, $common_secs, $common_nsecs,
+ $common_pid, $common_comm,
+ $nr, $fd, $buf, $count) = @_;
+
+ print_check();
+
+ $reads{$common_pid}{bytes_requested} += $count;
+ $reads{$common_pid}{total_reads}++;
+ $reads{$common_pid}{comm} = $common_comm;
+}
+
+sub syscalls::sys_exit_write
+{
+ my ($event_name, $context, $common_cpu, $common_secs, $common_nsecs,
+ $common_pid, $common_comm,
+ $nr, $ret) = @_;
+
+ print_check();
+
+ if ($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) = @_;
+
+ print_check();
+
+ $writes{$common_pid}{bytes_written} += $count;
+ $writes{$common_pid}{total_writes}++;
+ $writes{$common_pid}{comm} = $common_comm;
+}
+
+sub trace_begin
+{
+ my $sa = POSIX::SigAction->new(\&set_print_pending);
+ $sa->flags(SA_RESTART);
+ $sa->safe(1);
+ POSIX::sigaction(SIGALRM, $sa) or die "Can't set SIGALRM handler: $!\n";
+ alarm 1;
+}
+
+sub trace_end
+{
+ print_unhandled();
+ print_totals();
+}
+
+sub print_check()
+{
+ if ($print_pending == 1) {
+ $print_pending = 0;
+ print_totals();
+ }
+}
+
+sub set_print_pending()
+{
+ $print_pending = 1;
+ alarm $interval;
+}
+
+sub print_totals
+{
+ my $count;
+
+ $count = 0;
+
+ clear_term();
+
+ printf("\nread counts by pid:\n\n");
+
+ printf("%6s %20s %10s %10s %10s\n", "pid", "comm",
+ "# reads", "bytes_req", "bytes_read");
+ printf("%6s %-20s %10s %10s %10s\n", "------", "--------------------",
+ "----------", "----------", "----------");
+
+ foreach my $pid (sort { ($reads{$b}{bytes_read} || 0) <=>
+ ($reads{$a}{bytes_read} || 0) } keys %reads) {
+ my $comm = $reads{$pid}{comm} || "";
+ my $total_reads = $reads{$pid}{total_reads} || 0;
+ my $bytes_requested = $reads{$pid}{bytes_requested} || 0;
+ my $bytes_read = $reads{$pid}{bytes_read} || 0;
+
+ printf("%6s %-20s %10s %10s %10s\n", $pid, $comm,
+ $total_reads, $bytes_requested, $bytes_read);
+
+ if (++$count == $nlines) {
+ last;
+ }
+ }
+
+ $count = 0;
+
+ printf("\nwrite counts by pid:\n\n");
+
+ printf("%6s %20s %10s %13s\n", "pid", "comm",
+ "# writes", "bytes_written");
+ printf("%6s %-20s %10s %13s\n", "------", "--------------------",
+ "----------", "-------------");
+
+ foreach my $pid (sort { ($writes{$b}{bytes_written} || 0) <=>
+ ($writes{$a}{bytes_written} || 0)} keys %writes) {
+ my $comm = $writes{$pid}{comm} || "";
+ my $total_writes = $writes{$pid}{total_writes} || 0;
+ my $bytes_written = $writes{$pid}{bytes_written} || 0;
+
+ printf("%6s %-20s %10s %13s\n", $pid, $comm,
+ $total_writes, $bytes_written);
+
+ if (++$count == $nlines) {
+ last;
+ }
+ }
+
+ %reads = ();
+ %writes = ();
+}
+
+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}++;
+}
diff --git a/tools/perf/scripts/perl/wakeup-latency.pl b/tools/perf/scripts/perl/wakeup-latency.pl
new file mode 100644
index 0000000..d9143dc
--- /dev/null
+++ b/tools/perf/scripts/perl/wakeup-latency.pl
@@ -0,0 +1,107 @@
+#!/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 = 0;
+my $total_wakeups = 0;
+
+sub sched::sched_switch
+{
+ my ($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: $total_wakeups\n";
+ if ($total_wakeups) {
+ printf("avg_wakeup_latency (ns): %u\n",
+ avg($total_wakeup_latency, $total_wakeups));
+ } else {
+ printf("avg_wakeup_latency (ns): N/A\n");
+ }
+ 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}++;
+}