| OLD | NEW |
|---|
| 1 <!DOCTYPE html> | 1 <!DOCTYPE html> |
| 2 <html> | 2 <html> |
| 3 <head> | 3 <head> |
| 4 <script src="../resources/runner.js"></script> | 4 <script src="../resources/runner.js"></script> |
| 5 </head> | 5 </head> |
| 6 <body> | 6 <body> |
| 7 <iframe></iframe> | 7 <iframe></iframe> |
| 8 </body> | 8 </body> |
| 9 <script> | 9 <script> |
| 10 | 10 |
| 11 function setup() { | 11 function setup() { |
| 12 var frame = document.getElementsByTagName("iframe")[0]; | 12 var frame = document.getElementsByTagName("iframe")[0]; |
| 13 var testDoc = frame.contentDocument; | 13 var testDoc = frame.contentDocument; |
| 14 var docText = ""; | 14 var docText = ""; |
| 15 docText += "<body><style>.foo {color:red}</style>"; | 15 docText += "<body><style>.foo {color:red}</style>"; |
| 16 docText += "<div class='bar'>Foo</div>"; | 16 docText += "<div class='bar'>Foo</div>"; |
| 17 for (var i = 0; i < 10000; ++i) | 17 for (var i = 0; i < 10000; ++i) |
| 18 docText += "<div class='foo'>Foo</div>"; | 18 docText += "<div class='foo'>Foo</div>"; |
| 19 testDoc.body.innerHTML = docText; | 19 testDoc.body.innerHTML = docText; |
| 20 return testDoc; | 20 return testDoc; |
| 21 } | 21 } |
| 22 | 22 |
| 23 PerfTestRunner.measureTime({run:function() { | 23 PerfTestRunner.measureTime({ |
| 24 var testDoc = setup(); | 24 description: "Measures performance of inserting 50 large style elements into
an iframe.", |
| 25 var start = PerfTestRunner.now(); | 25 run:function() { |
| 26 testDoc.body.offsetTop; | 26 var testDoc = setup(); |
| 27 for (var i = 0; i < 50; i++) { | 27 var start = PerfTestRunner.now(); |
| 28 var styleElem = testDoc.createElement("style"); | 28 testDoc.body.offsetTop; |
| 29 styleElem.innerText = ".bar {color:green}"; | 29 for (var i = 0; i < 50; i++) { |
| 30 testDoc.body.insertBefore(styleElem, testDoc.body.firstChild); | 30 var styleElem = testDoc.createElement("style"); |
| 31 styleElem.innerText = ".bar {color:green}"; |
| 32 testDoc.body.insertBefore(styleElem, testDoc.body.firstChild); |
| 33 } |
| 34 testDoc.body.offsetTop; |
| 35 return PerfTestRunner.now() - start; |
| 31 } | 36 } |
| 32 testDoc.body.offsetTop; | 37 }); |
| 33 return PerfTestRunner.now() - start; | |
| 34 }}); | |
| 35 </script> | 38 </script> |
| 36 </html> | 39 </html> |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 478003002:
Fill in descriptions on relevant blink_perf tests (Closed)
Base URL: https://chromium.googlesource.com/chromium/blink.git@master