[Webkit-unassigned] [Bug 68160] New: curl backend has horrible performance

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=68160

           Summary: curl backend has horrible performance
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Unspecified
        OS/Version: Unspecified
            Status: UNCONFIRMED
          Severity: Normal
          Priority: P2
         Component: WebKit EFL
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: o.gorter at activevideo.com
                CC: demarchi at webkit.org, gyuyoung.kim at webkit.org


Created an attachment (id=107496)
 --> (https://bugs.webkit.org/attachment.cgi?id=107496&action=review)
fix

The curl backend always uses a poll timer, and worse, doesn't fully read all kernel buffers when there is work to do. Instead it always defers more work to the next poll interval. Loading large images takes a lot longer then it should. Attached is a fix that:

* schedule work immediately and not using poll timeout
* never wait in select, just ask kernel for activity
* if select was useful, do work and immediately try select again
* only if there is nothing more to do but wait on network traffic, poll every 0.02 seconds

-- 
Configure bugmail: https://bugs.webkit.org/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are the assignee for the bug.