Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1 | // Copyright 2013 the V8 project authors. All rights reserved. |
| 2 | // Redistribution and use in source and binary forms, with or without |
| 3 | // modification, are permitted provided that the following conditions are |
| 4 | // met: |
| 5 | // |
| 6 | // * Redistributions of source code must retain the above copyright |
| 7 | // notice, this list of conditions and the following disclaimer. |
| 8 | // * Redistributions in binary form must reproduce the above |
| 9 | // copyright notice, this list of conditions and the following |
| 10 | // disclaimer in the documentation and/or other materials provided |
| 11 | // with the distribution. |
| 12 | // * Neither the name of Google Inc. nor the names of its |
| 13 | // contributors may be used to endorse or promote products derived |
| 14 | // from this software without specific prior written permission. |
| 15 | // |
| 16 | // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 17 | // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 18 | // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| 19 | // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| 20 | // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 21 | // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| 22 | // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 23 | // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 24 | // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 25 | // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| 26 | // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 27 | |
| 28 | var delegateList = { |
| 29 | "load scripts" : load_scripts, |
| 30 | "run" : run, |
| 31 | } |
| 32 | |
| 33 | self.addEventListener("message", function(event) { |
| 34 | var call = delegateList[event.data["call"]]; |
| 35 | var result = call(event.data["args"]); |
| 36 | }, false); |
| 37 | |
| 38 | |
| 39 | function log(text) { |
| 40 | self.postMessage({ "call" : "log", "args" : text }); |
| 41 | } |
| 42 | |
| 43 | |
| 44 | function displayplot(content) { |
| 45 | self.postMessage({ "call" : "displayplot", "args" : content}); |
| 46 | } |
| 47 | |
| 48 | |
| 49 | function displayprof(content) { |
| 50 | self.postMessage({ "call" : "displayprof", "args" : content}); |
| 51 | } |
| 52 | |
| 53 | |
| 54 | function setRange(start, end) { |
| 55 | self.postMessage({ "call" : "range", |
| 56 | "args" : { "start" : start, "end" : end } }); |
| 57 | } |
| 58 | |
| 59 | |
| 60 | function time(name, fun) { |
| 61 | log(name + "..."); |
| 62 | var start = Date.now(); |
| 63 | fun(); |
| 64 | log(" took " + (Date.now() - start) / 1000 + "s.\n"); |
| 65 | } |
| 66 | |
| 67 | |
| 68 | function load_scripts(scripts) { |
| 69 | time("Loading scripts", |
| 70 | function() { for (var i in scripts) importScripts(scripts[i]); }); |
| 71 | self.postMessage({ "call" : "script" }); |
| 72 | } |
| 73 | |
| 74 | |
| 75 | function log_error(text) { |
| 76 | self.postMessage({"call": "error", "args": text}); |
| 77 | self.postMessage({"call": "reset"}); |
| 78 | } |
| 79 | |
| 80 | |
| 81 | function run(args) { |
| 82 | var file = args["file"]; |
| 83 | var resx = args["resx"]; |
| 84 | var resy = args["resy"]; |
| 85 | var distortion = args["distortion"]; |
| 86 | var range_start_override = args["range_start"]; |
| 87 | var range_end_override = args["range_end"]; |
| 88 | |
| 89 | var reader = new FileReaderSync(); |
| 90 | var content_lines; |
| 91 | |
| 92 | time("Reading log file (" + (file.size / 1024).toFixed(1) + " kB)", |
| 93 | function() { |
| 94 | var content = reader.readAsText(file); |
| 95 | content_lines = content.split("\n"); |
| 96 | }); |
| 97 | |
| 98 | time("Producing statistical profile", |
| 99 | function() { |
| 100 | var profile = ""; |
| 101 | print = function(text) { profile += text + "\n"; }; |
| 102 | // Dummy entries provider, as we cannot call nm. |
| 103 | var entriesProvider = new UnixCppEntriesProvider("", ""); |
| 104 | var targetRootFS = ""; |
| 105 | var separateIc = false; |
| 106 | var callGraphSize = 5; |
| 107 | var ignoreUnknown = true; |
| 108 | var stateFilter = null; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 109 | var range = range_start_override + "," + range_end_override; |
| 110 | |
| 111 | var tickProcessor = new TickProcessor(entriesProvider, |
| 112 | separateIc, |
| 113 | callGraphSize, |
| 114 | ignoreUnknown, |
| 115 | stateFilter, |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 116 | distortion, |
| 117 | range); |
| 118 | for (var i = 0; i < content_lines.length; i++) { |
| 119 | tickProcessor.processLogLine(content_lines[i]); |
| 120 | } |
| 121 | tickProcessor.printStatistics(); |
| 122 | displayprof(profile); |
| 123 | }); |
| 124 | |
| 125 | var input_file_name = "input_temp"; |
| 126 | var output_file_name = "output.svg"; |
| 127 | |
| 128 | var psc = new PlotScriptComposer(resx, resy, log_error); |
| 129 | var objects = 0; |
| 130 | |
| 131 | time("Collecting events (" + content_lines.length + " entries)", |
| 132 | function() { |
| 133 | var line_cursor = 0; |
| 134 | var input = function() { return content_lines[line_cursor++]; }; |
| 135 | psc.collectData(input, distortion); |
| 136 | psc.findPlotRange(range_start_override, |
| 137 | range_end_override, |
| 138 | setRange); |
| 139 | }); |
| 140 | |
| 141 | time("Assembling plot script", |
| 142 | function() { |
| 143 | var plot_script = ""; |
| 144 | var output = function(text) { plot_script += text + "\n"; }; |
| 145 | output("set terminal svg size " + resx + "," + resy + |
| 146 | " enhanced font \"Helvetica,10\""); |
| 147 | output("set output \""+ output_file_name + "\""); |
| 148 | objects = psc.assembleOutput(output); |
| 149 | if (FS.findObject(input_file_name)) { |
| 150 | FS.deleteFile(input_file_name); |
| 151 | } |
| 152 | var arrc = Module["intArrayFromString"](plot_script, true); |
| 153 | FS.createDataFile("/", input_file_name, arrc); |
| 154 | }); |
| 155 | |
| 156 | time("Running gnuplot (" + objects + " objects)", |
| 157 | function() { Module.run([input_file_name]); }); |
| 158 | |
| 159 | displayplot(FS.findObject(output_file_name)); |
| 160 | } |
| 161 | |
| 162 | |
| 163 | var Module = { |
| 164 | "noInitialRun": true, |
| 165 | print: function(text) { |
| 166 | self.postMessage({"call": "error", "args": text}); |
| 167 | }, |
| 168 | printErr: function(text) { |
| 169 | self.postMessage({"call": "error", "args": text}); |
| 170 | }, |
| 171 | }; |