[Webkit-unassigned] [Bug 62675] New: Minimize memory due to layer backing stores for pages in the Page Cache

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=62675

           Summary: Minimize memory due to layer backing stores for pages
                    in the Page Cache
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Unspecified
        OS/Version: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: WebCore Misc.
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: joepeck at webkit.org
                CC: simon.fraser at apple.com, cmarrin at apple.com


Pages in the PageCache preserve their layers and backing stores and
can consume a lot of memory. In situations where we need to handle
low memory conditions we can still keep the Document in memory if
we save enough memory by just clearing the backing stores + layers.
This can also be done proactively when a page enters the PageCache.

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