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-rw-r--r--tools/perf/scripts/perl/workqueue-stats.pl129
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diff --git a/tools/perf/scripts/perl/workqueue-stats.pl b/tools/perf/scripts/perl/workqueue-stats.pl
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+#!/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}++;
+}
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