| // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| /** |
| * @fileoverview Parses cpufreq events in the Linux event trace format. |
| */ |
| base.require('linux_perf_parser'); |
| base.exportTo('tracing', function() { |
| |
| var LinuxPerfParser = tracing.LinuxPerfParser; |
| |
| /** |
| * Parses linux cpufreq trace events. |
| * @constructor |
| */ |
| function LinuxPerfCpufreqParser(importer) { |
| LinuxPerfParser.call(this, importer); |
| |
| importer.registerEventHandler('cpufreq_interactive_up', |
| LinuxPerfCpufreqParser.prototype.cpufreqUpDownEvent.bind(this)); |
| importer.registerEventHandler('cpufreq_interactive_down', |
| LinuxPerfCpufreqParser.prototype.cpufreqUpDownEvent.bind(this)); |
| importer.registerEventHandler('cpufreq_interactive_already', |
| LinuxPerfCpufreqParser.prototype.cpufreqTargetEvent.bind(this)); |
| importer.registerEventHandler('cpufreq_interactive_notyet', |
| LinuxPerfCpufreqParser.prototype.cpufreqTargetEvent.bind(this)); |
| importer.registerEventHandler('cpufreq_interactive_target', |
| LinuxPerfCpufreqParser.prototype.cpufreqTargetEvent.bind(this)); |
| importer.registerEventHandler('cpufreq_interactive_boost', |
| LinuxPerfCpufreqParser.prototype.cpufreqBoostUnboostEvent.bind(this)); |
| importer.registerEventHandler('cpufreq_interactive_unboost', |
| LinuxPerfCpufreqParser.prototype.cpufreqBoostUnboostEvent.bind(this)); |
| } |
| |
| LinuxPerfCpufreqParser.prototype = { |
| __proto__: LinuxPerfParser.prototype, |
| |
| cpufreqSlice: function(ts, eventName, cpu, args) { |
| // TODO(sleffler) should be per-cpu |
| var kthread = this.importer.getOrCreatePseudoThread('cpufreq'); |
| kthread.openSlice = eventName; |
| var slice = new tracing.TimelineSlice('', kthread.openSlice, |
| tracing.getStringColorId(kthread.openSlice), ts, args, 0); |
| |
| kthread.thread.pushSlice(slice); |
| }, |
| |
| cpufreqBoostSlice: function(ts, eventName, args) { |
| var kthread = this.importer.getOrCreatePseudoThread('cpufreq_boost'); |
| kthread.openSlice = eventName; |
| var slice = new tracing.TimelineSlice('', kthread.openSlice, |
| tracing.getStringColorId(kthread.openSlice), ts, args, 0); |
| |
| kthread.thread.pushSlice(slice); |
| }, |
| |
| /** |
| * Parses cpufreq events and sets up state in the importer. |
| */ |
| cpufreqUpDownEvent: function(eventName, cpuNumber, pid, ts, eventBase) { |
| var event = /cpu=(\d+) targ=(\d+) actual=(\d+)/.exec(eventBase[5]); |
| if (!event) |
| return false; |
| |
| // TODO(sleffler) split by cpu |
| var cpu = parseInt(event[1]); |
| var targ = parseInt(event[2]); |
| var actual = parseInt(event[3]); |
| this.cpufreqSlice(ts, eventName, cpu, |
| { |
| cpu: cpu, |
| targ: targ, |
| actual: actual |
| }); |
| return true; |
| }, |
| |
| cpufreqTargetEvent: function(eventName, cpuNumber, pid, ts, |
| eventBase) { |
| var event = /cpu=(\d+) load=(\d+) cur=(\d+) targ=(\d+)/ |
| .exec(eventBase[5]); |
| if (!event) |
| return false; |
| |
| // TODO(sleffler) split by cpu |
| var cpu = parseInt(event[1]); |
| var load = parseInt(event[2]); |
| var cur = parseInt(event[3]); |
| var targ = parseInt(event[4]); |
| this.cpufreqSlice(ts, eventName, cpu, |
| { |
| cpu: cpu, |
| load: load, |
| cur: cur, |
| targ: targ |
| }); |
| return true; |
| }, |
| |
| cpufreqBoostUnboostEvent: function(eventName, cpuNumber, pid, ts, |
| eventBase) { |
| this.cpufreqBoostSlice(ts, eventName, |
| { |
| type: eventBase[5] |
| }); |
| return true; |
| } |
| }; |
| |
| LinuxPerfParser.registerSubtype(LinuxPerfCpufreqParser); |
| |
| return { |
| LinuxPerfCpufreqParser: LinuxPerfCpufreqParser |
| }; |
| }); |