RESOLVED WONTFIX 92224
[PerfTest] Add performance tests for preload scanning 
https://bugs.webkit.org/show_bug.cgi?id=92224
Summary [PerfTest] Add performance tests for preload scanning
Kwang Yul Seo
Reported 2012-07-25 00:29:29 PDT
We need performance tests for preload scanning to improve PreloadScanner.
Attachments
Add attachment proposed patch, testcase, etc.
Kwang Yul Seo
Comment 1 2012-07-25 00:37:03 PDT
There was an attempt to improve the performance of preload scanner by running the scanner off-the-main thread. See Bug 63531. It seems people used html5-parser benchmark. But I think html5-parser is not suitable to measure the performance of preload scanning because this benchmark is intended to measure the parser throughput.
Kwang Yul Seo
Comment 2 2012-07-26 22:01:11 PDT
Is it possible to delay the loading of elements in perf tests? For example, I'd like to delay dummy.js loading for 1 second to give enough time for the preload scanner to scan the rest of input stream and request preloads. <script src="dummy.js"></script>... It seems web-page-replay used for replay performance tests performs a similar function though the delay is recorded, not manually specified.
Eric Seidel (no email)
Comment 3 2013-03-05 02:05:55 PST
I'm not sure how we'd do this?
Adam Barth
Comment 4 2013-03-05 09:40:49 PST
IMHO, we should just use the PLT to measure this sort of thing. That's really the end-to-end metric that we'd like to move with the preload scanner.
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