[Webkit-unassigned] [Bug 126049] New: Remove a significant source of memory allocations during CSS parsing

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=126049

           Summary: Remove a significant source of memory allocations
                    during CSS parsing
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Unspecified
        OS/Version: Unspecified
            Status: NEW
          Keywords: BlinkMergeCandidate
          Severity: Normal
          Priority: P2
         Component: CSS
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: rniwa at webkit.org
                CC: koivisto at iki.fi, barraclough at apple.com,
                    benjamin at webkit.org, akling at apple.com


Consider merging https://chromium.googlesource.com/chromium/blink/+/3d1744e53a3540be9bdb385deadec60469e6019c
or come up with a similar improvement

This is about +2% on Parser/css-parser-yui.html locally.

Previously, we were allocating and freeing small vector buffers (most commonly
24 or 72 byte allocations on 64-bit), only to immediately throw them away.

Note that uncheckedAppend has an ASSERT that will cleanly catch any future
problems with sizing.

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