Bug 100991

Summary:

Refactor ReplayPerfTest and PageLoadingPerfTest

Product:

WebKit

Reporter:

Zoltan Horvath <zoltan>

Component:

Tools / Tests

Assignee:

Zoltan Horvath <zoltan>

Status:

NEW ---

Severity:

Normal

CC:

rniwa

Priority:

Version:

528+ (Nightly build)

Hardware:

Unspecified

OS:

Unspecified

Bug Depends on:

111027

Bug Blocks:

77037

Attachments:

Description	Flags
Work in progress	none
Demonstrates interesting cache-dependent behavior	none

Description Zoltan Horvath 2012-11-01 14:49:17 PDT

Since we removed the PageLoadingPerfTest conception we don't need that class, but ReplayPerfTest uses it, so it's time to do some cleanup.

Comment 1 Ryosuke Niwa 2012-11-01 15:16:24 PDT

I think we can change ReplayPerfTest to use the same iframe approach.

Comment 2 Zoltan Horvath 2012-11-01 16:05:22 PDT

(In reply to comment #1)
> I think we can change ReplayPerfTest to use the same iframe approach.

Good point and it makes sense, since it would be really interesting to measure the memory usage after a page loads. I'll do it with this in mind.

Comment 3 Ryosuke Niwa 2012-11-07 01:08:41 PST

I think we can make ReplayPerfTest inherit from PerfTest and use the same iframe approach.

Comment 4 Ryosuke Niwa 2012-11-07 01:09:52 PST

Created attachment 172732 [details]
Work in progress

Here's a snippet of code that turns replay tests into an iframe-based tests.

Comment 5 Ryosuke Niwa 2012-11-07 01:12:38 PST

Created attachment 172733 [details]
Demonstrates interesting cache-dependent behavior

For some reason, immediately changing iframe's src makes subsequent page loads really fast. Delaying it with 50ms or so will make the results more uniform across iterations. I'm not sure whether this behavior is caused by WebCore or web-page-replay.