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| 1 <html> | 1 <html> |
| 2 <head> | 2 <head> |
| 3 <title>V8 Benchmark Suite Revisions</title> | 3 <title>V8 Benchmark Suite Revisions</title> |
| 4 <link type="text/css" rel="stylesheet" href="style.css"></link> | 4 <link type="text/css" rel="stylesheet" href="style.css"></link> |
| 5 </head> | 5 </head> |
| 6 <body> | 6 <body> |
| 7 <div> | 7 <div> |
| 8 <div class="title"><h1>V8 Benchmark Suite Revisions</h1></div> | 8 <div class="title"><h1>V8 Benchmark Suite Revisions</h1></div> |
| 9 <table> | 9 <table> |
| 10 <tr> | 10 <tr> |
| 11 <td class="contents"> | 11 <td class="contents"> |
| 12 | 12 |
| 13 <p> | 13 <p> |
| 14 | 14 |
| 15 The V8 benchmark suite is changed from time to time as we fix bugs or | 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 | 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 | 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 | 18 not comparable unless both results are run with the same revision of |
| 19 the benchmark suite. | 19 the benchmark suite. |
| 20 | 20 |
| 21 </p> | 21 </p> |
| 22 | 22 |
| 23 <div class="subtitle"><h3>Version 3 (<a href="http://v8.googlecode.com/svn/data/
benchmarks/v3/run.html">link</a>)</h3></div> |
| 24 |
| 25 <p>Version 3 adds a new benchmark, <i>RegExp</i>. The RegExp |
| 26 benchmark is generated by loading 50 of the most popular pages on the |
| 27 web and logging all regexp operations performed. Each operation is |
| 28 given a weight that is calculated from an estimate of the popularity |
| 29 of the pages where it occurs and the number of times it is executed |
| 30 while loading each page. Finally the literal letters in the data are |
| 31 encoded using ROT13 in a way that does not affect how the regexps |
| 32 match their input. |
| 33 </p> |
| 34 |
| 23 <div class="subtitle"><h3>Version 2 (<a href="http://v8.googlecode.com/svn/data/
benchmarks/v2/run.html">link</a>)</h3></div> | 35 <div class="subtitle"><h3>Version 2 (<a href="http://v8.googlecode.com/svn/data/
benchmarks/v2/run.html">link</a>)</h3></div> |
| 24 | 36 |
| 25 <p>For version 2 the crypto benchmark was fixed. Previously, the | 37 <p>For version 2 the crypto benchmark was fixed. Previously, the |
| 26 decryption stage was given plaintext as input, which resulted in an | 38 decryption stage was given plaintext as input, which resulted in an |
| 27 error. Now, the decryption stage is given the output of the | 39 error. Now, the decryption stage is given the output of the |
| 28 encryption stage as input. The result is checked against the original | 40 encryption stage as input. The result is checked against the original |
| 29 plaintext. For this to give the correct results the crypto objects | 41 plaintext. For this to give the correct results the crypto objects |
| 30 are reset for each iteration of the benchmark. In addition, the size | 42 are reset for each iteration of the benchmark. In addition, the size |
| 31 of the plain text has been increased a little and the use of | 43 of the plain text has been increased a little and the use of |
| 32 Math.random() and new Date() to build an RNG pool has been | 44 Math.random() and new Date() to build an RNG pool has been |
| 33 removed. </p> | 45 removed. </p> |
| 34 | 46 |
| 35 <p>Other benchmarks were fixed to do elementary verification of the | 47 <p>Other benchmarks were fixed to do elementary verification of the |
| 36 results of their calculations. This is to avoid accidentally | 48 results of their calculations. This is to avoid accidentally |
| 37 obtaining scores that are the result of an incorrect JavaScript engine | 49 obtaining scores that are the result of an incorrect JavaScript engine |
| 38 optimization.</p> | 50 optimization.</p> |
| 39 | 51 |
| 40 <div class="subtitle"><h3>Version 1 (<a href="http://v8.googlecode.com/svn/data/
benchmarks/v1/run.html">link</a>)</h3></div> | 52 <div class="subtitle"><h3>Version 1 (<a href="http://v8.googlecode.com/svn/data/
benchmarks/v1/run.html">link</a>)</h3></div> |
| 41 | 53 |
| 42 <p>Initial release.</p> | 54 <p>Initial release.</p> |
| 43 | 55 |
| 44 </td><td style="text-align: center"> | 56 </td><td style="text-align: center"> |
| 45 </td></tr></table> | 57 </td></tr></table> |
| 46 | 58 |
| 47 </div> | 59 </div> |
| 48 | 60 |
| 49 </body> | 61 </body> |
| 50 </html> | 62 </html> |
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Chromium Code Reviews
Issue 18497:
Don't insert .*? at the beginning of anchored expressions. (Closed)
