[Webkit-unassigned] [Bug 171289] New: Call bmalloc scavenger first when handling a memory pressure event
bugzilla-daemon at webkit.org
bugzilla-daemon at webkit.org
Tue Apr 25 14:04:43 PDT 2017
https://bugs.webkit.org/show_bug.cgi?id=171289
Bug ID: 171289
Summary: Call bmalloc scavenger first when handling a memory
pressure event
Product: WebKit
Version: WebKit Nightly Build
Hardware: Unspecified
OS: Unspecified
Status: NEW
Severity: Normal
Priority: P2
Component: JavaScriptCore
Assignee: webkit-unassigned at lists.webkit.org
Reporter: msaboff at apple.com
When we are responding to a memory pressure notification, we free up invoke the release memory handlers for various subsystems and then call the bmalloc scavenger synchronously to free pages back to the OS. There is a very good chance that when we receieve the low memory event that we already have physical free pages that we can immediately return to the OS for use. Therefore we should invoke the bmalloc scavenger first in the release memory handler as well as at the end as we currently do.
<rdar://problem/31820242>
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