1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 'use strict'; 6 7 /** 8 * @fileoverview Parses trace_marker events that were inserted in the trace by 9 * userland. 10 */ 11 base.require('tracing.importer.linux_perf.parser'); 12 base.require('tracing.trace_model.counter_series'); 13 14 base.exportTo('tracing.importer.linux_perf', function() { 15 16 var Parser = tracing.importer.linux_perf.Parser; 17 18 /** 19 * Parses linux trace mark events that were inserted in the trace by userland. 20 * @constructor 21 */ 22 function BusParser(importer) { 23 Parser.call(this, importer); 24 25 importer.registerEventHandler('memory_bus_usage', 26 BusParser.prototype.traceMarkWriteBusEvent.bind(this)); 27 28 this.model_ = importer.model_; 29 this.ppids_ = {}; 30 } 31 32 BusParser.prototype = { 33 __proto__: Parser.prototype, 34 35 traceMarkWriteBusEvent: function(eventName, cpuNumber, pid, ts, 36 eventBase, threadName) { 37 var re = new RegExp('bus=(\\S+) rw_bytes=(\\d+) r_bytes=(\\d+) ' + 38 'w_bytes=(\\d+) cycles=(\\d+) ns=(\\d+)'); 39 var event = re.exec(eventBase.details); 40 41 var name = event[1]; 42 var rw_bytes = parseInt(event[2]); 43 var r_bytes = parseInt(event[3]); 44 var w_bytes = parseInt(event[4]); 45 var cycles = parseInt(event[5]); 46 var ns = parseInt(event[6]); 47 48 // BW in MB/s 49 var r_bw = r_bytes * 1000000000 / ns; 50 r_bw /= 1024 * 1024; 51 var w_bw = w_bytes * 1000000000 / ns; 52 w_bw /= 1024 * 1024; 53 54 var ctr = this.model_.getOrCreateProcess(0) 55 .getOrCreateCounter(null, 'bus ' + name + ' read'); 56 if (ctr.numSeries === 0) { 57 ctr.addSeries(new tracing.trace_model.CounterSeries('value', 58 tracing.getStringColorId(ctr.name + '.' + 'value'))); 59 } 60 ctr.series.forEach(function(series) { 61 series.addSample(ts, r_bw); 62 }); 63 64 ctr = this.model_.getOrCreateProcess(0) 65 .getOrCreateCounter(null, 'bus ' + name + ' write'); 66 if (ctr.numSeries === 0) { 67 ctr.addSeries(new tracing.trace_model.CounterSeries('value', 68 tracing.getStringColorId(ctr.name + '.' + 'value'))); 69 } 70 ctr.series.forEach(function(series) { 71 series.addSample(ts, r_bw); 72 }); 73 74 return true; 75 } 76 }; 77 78 Parser.registerSubtype(BusParser); 79 80 return { 81 BusParser: BusParser 82 }; 83 }); 84
