1 <!DOCTYPE html> 2 <!-- Copyright 2012 the V8 project authors. 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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 <html lang="en"> 29 <head> 30 <meta charset="utf-8"/> 31 <title>V8 Tick Processor</title> 32 33 <style type="text/css"> 34 body { 35 font-family: Verdana, Arial, Helvetica, sans-serif; 36 font-size: 10pt; 37 } 38 h4 { 39 margin-bottom: 0px; 40 } 41 p { 42 margin-top: 0px; 43 } 44 </style> 45 46 <script src="splaytree.js"></script> 47 <script src="codemap.js"></script> 48 <script src="csvparser.js"></script> 49 <script src="consarray.js"></script> 50 <script src="profile.js"></script> 51 <script src="profile_view.js"></script> 52 <script src="logreader.js"></script> 53 <script src="tickprocessor.js"></script> 54 55 <script type="text/javascript"> 56 57 var v8log_content; 58 var textout; 59 60 function load_logfile(evt) { 61 textout.value = ""; 62 var f = evt.target.files[0]; 63 if (f) { 64 var reader = new FileReader(); 65 reader.onload = function(event) { 66 v8log_content = event.target.result; 67 start_process(); 68 }; 69 reader.onerror = function(event) { 70 console.error("File could not be read! Code " + event.target.error.code); 71 }; 72 reader.readAsText(f); 73 } else { 74 alert("Failed to load file"); 75 } 76 } 77 78 function print(arg) { 79 textout.value+=arg+"\n"; 80 } 81 82 function start_process() { 83 ArgumentsProcessor.DEFAULTS = { 84 logFileName: 'v8.log', 85 snapshotLogFileName: null, 86 platform: 'unix', 87 stateFilter: null, 88 callGraphSize: 5, 89 ignoreUnknown: false, 90 separateIc: false, 91 targetRootFS: '', 92 nm: 'nm' 93 }; 94 95 var entriesProviders = { 96 'unix': UnixCppEntriesProvider, 97 'windows': WindowsCppEntriesProvider, 98 'mac': MacCppEntriesProvider 99 }; 100 101 var snapshotLogProcessor; // not used 102 103 var tickProcessor = new TickProcessor( 104 new (entriesProviders[ArgumentsProcessor.DEFAULTS.platform])( 105 ArgumentsProcessor.DEFAULTS.nm, 106 ArgumentsProcessor.DEFAULTS.targetRootFS), 107 ArgumentsProcessor.DEFAULTS.separateIc, 108 ArgumentsProcessor.DEFAULTS.callGraphSize, 109 ArgumentsProcessor.DEFAULTS.ignoreUnknown, 110 ArgumentsProcessor.DEFAULTS.stateFilter, 111 snapshotLogProcessor); 112 113 tickProcessor.processLogChunk(v8log_content); 114 tickProcessor.printStatistics(); 115 } 116 117 function Load() { 118 document.getElementById('fileinput').addEventListener( 119 'change', load_logfile, false); 120 textout = document.getElementById('textout'); 121 } 122 </script> 123 </head> 124 <body onLoad="Load()"> 125 126 <h3 style="margin-top: 2px;"> 127 Chrome V8 profiling log processor 128 </h3> 129 <p> 130 Process V8's profiling information log (sampling profiler tick information) 131 in your browser. Particularly useful if you don't have the V8 shell (d8) 132 at hand on your system. You still have to run Chrome with the appropriate 133 <a href="https://code.google.com/p/v8/wiki/ProfilingChromiumWithV8"> 134 command line flags</a> 135 to produce the profiling log. 136 </p> 137 <h4>Usage:</h4> 138 <p> 139 Click on the button and browse to the profiling log file (usually, v8.log). 140 Process will start automatically and the output will be visible in the below 141 text area. 142 </p> 143 <h4>Limitations and disclaimer:</h4> 144 <p> 145 This page offers a subset of the functionalities of the command-line tick 146 processor utility in the V8 repository. In particular, this page cannot 147 access the command-line utility that provides library symbol information, 148 hence the [C++] section of the output stays empty. Also consider that this 149 web-based tool is provided only for convenience and quick reference, you 150 should refer to the 151 <a href="https://code.google.com/p/v8/wiki/V8Profiler"> 152 command-line</a> 153 version for full output. 154 </p> 155 <p> 156 <input type="file" id="fileinput" /> 157 </p> 158 <p> 159 <textarea name="myTextArea" cols="120" rows="40" wrap="off" id="textout" 160 readonly="yes"></textarea> 161 </p> 162 <p style="font-style:italic;"> 163 Copyright the V8 Authors - Last change to this page: 12/12/2012 164 </p> 165 166 167 </body> 168 </html> 169
