[Webkit-unassigned] [Bug 211633] New: bmalloc should have per-cpu locking mechanism

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=211633

            Bug ID: 211633
           Summary: bmalloc should have per-cpu locking mechanism
           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: ysuzuki at apple.com
                CC: ggaren at apple.com

We are taking a global lock easily. We should not.
Talked with Phil, and current plan is introducing per-cpu locking mechanism.
Each SmallPage have Mutex*, which could point to per-cpu lock or SmallPage's fine-grained lock.
We switch them based on contention and keep deallocation fast without taking a global lock.

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