1 <html> 2 <head> 3 <title>V8 Benchmark Suite Revisions</title> 4 <link type="text/css" rel="stylesheet" href="style.css" /> 5 </head> 6 <body> 7 <div> 8 <div class="title"><h1>V8 Benchmark Suite Revisions</h1></div> 9 <table> 10 <tr> 11 <td class="contents"> 12 13 <p> 14 15 The V8 benchmark suite is changed from time to time as we fix bugs or 16 expand the scope of the benchmarks. Here is a list of revisions, with 17 a description of the changes made. Note that benchmark results are 18 not comparable unless both results are run with the same revision of 19 the benchmark suite. 20 21 </p> 22 23 <div class="subtitle"><h3>Version 5 (<a href="http://v8.googlecode.com/svn/data/benchmarks/v5/run.html">link</a>)</h3></div> 24 25 <p>Removed duplicate line in random seed code, and changed the name of 26 the Object.prototype.inherits function in the DeltaBlue benchmark to 27 inheritsFrom to avoid name clashes when running in Chromium with 28 extensions enabled. 29 </p> 30 31 <div class="subtitle"><h3>Version 4 (<a href="http://v8.googlecode.com/svn/data/benchmarks/v4/run.html">link</a>)</h3></div> 32 33 <p>The <i>Splay</i> benchmark is a newcomer in version 4. It 34 manipulates a splay tree by adding and removing data nodes, thus 35 exercising the memory management subsystem of the JavaScript engine. 36 </p> 37 38 <p> 39 Furthermore, all the unused parts of the Prototype library were 40 removed from the RayTrace benchmark. This does not affect the running 41 of the benchmark. 42 </p> 43 44 45 <div class="subtitle"><h3>Version 3 (<a href="http://v8.googlecode.com/svn/data/benchmarks/v3/run.html">link</a>)</h3></div> 46 47 <p>Version 3 adds a new benchmark, <i>RegExp</i>. The RegExp 48 benchmark is generated by loading 50 of the most popular pages on the 49 web and logging all regexp operations performed. Each operation is 50 given a weight that is calculated from an estimate of the popularity 51 of the pages where it occurs and the number of times it is executed 52 while loading each page. Finally the literal letters in the data are 53 encoded using ROT13 in a way that does not affect how the regexps 54 match their input. 55 </p> 56 57 58 <div class="subtitle"><h3>Version 2 (<a href="http://v8.googlecode.com/svn/data/benchmarks/v2/run.html">link</a>)</h3></div> 59 60 <p>For version 2 the Crypto benchmark was fixed. Previously, the 61 decryption stage was given plaintext as input, which resulted in an 62 error. Now, the decryption stage is given the output of the 63 encryption stage as input. The result is checked against the original 64 plaintext. For this to give the correct results the crypto objects 65 are reset for each iteration of the benchmark. In addition, the size 66 of the plain text has been increased a little and the use of 67 Math.random() and new Date() to build an RNG pool has been 68 removed. </p> 69 70 <p>Other benchmarks were fixed to do elementary verification of the 71 results of their calculations. This is to avoid accidentally 72 obtaining scores that are the result of an incorrect JavaScript engine 73 optimization.</p> 74 75 76 <div class="subtitle"><h3>Version 1 (<a href="http://v8.googlecode.com/svn/data/benchmarks/v1/run.html">link</a>)</h3></div> 77 78 <p>Initial release.</p> 79 80 </td><td style="text-align: center"> 81 </td></tr></table> 82 83 </div> 84 85 </body> 86 </html> 87
