[Webkit-unassigned] [Bug 147841] New: Convert all locking and condition variables in WebKit to use fast ParkingLot-based locks and condition variables

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=147841

            Bug ID: 147841
           Summary: Convert all locking and condition variables in WebKit
                    to use fast ParkingLot-based locks and condition
                    variables
    Classification: Unclassified
           Product: WebKit
           Version: 528+ (Nightly build)
          Hardware: All
                OS: All
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Web Template Framework
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: fpizlo at apple.com

The grand plan is:

- Make Lock use atomic increments on the fast path and ParkingLot on the slow path.  This will make the fast path a lot better and will reduce the memory usage of Lock.

- Give Lock and ByteLock the ability to act as their own condition variables.

- Create a separate Condition that uses one byte and some ParkingLot magic, for those cases where a separate condition variable is needed.

Then we can remove all uses of std::mutex, std::condition_variable, WTF::Mutex, and WTF::ThreadCondition.

-- 
You are receiving this mail because:
You are the assignee for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.webkit.org/pipermail/webkit-unassigned/attachments/20150810/e5ce6f81/attachment-0001.html>