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