[Webkit-unassigned] [Bug 195895] New: [BMalloc] Scavenger should react to recent memory activity

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=195895

            Bug ID: 195895
           Summary: [BMalloc] Scavenger should react to recent memory
                    activity
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: bmalloc
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: msaboff at apple.com
                CC: ggaren at apple.com

The current bmalloc scavenging code code uses fixed timeouts to schedule scavenging.  It has two scavenging modes, a full scavenge and a partial scavenge.  The partial scavenge only frees LargeRanges, while the full scavenge will free objects of various sizes.

We have discussed changing the scavenger so that it adapts to the current sizes of the various freelists as well as not freeing items on a freelist if it has been recently used.

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