[Webkit-unassigned] [Bug 31051] New: [v8] control external memory retention due to V8 objects

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=31051

           Summary: [v8] control external memory retention due to V8
                    objects
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: All
        OS/Version: All
            Status: UNCONFIRMED
          Severity: Normal
          Priority: P2
         Component: WebKit Misc.
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: antonm at chromium.org


There are cases when small V8 handlers (too small to force V8 GC) retain a lot
of DOM objects and thus Chromium could run out of memory even though those
objects are semantic garbage.

This patch adds some checks and if overall memory usage is high, attempts to
release the memory.

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