• Ulan Degenbaev's avatar
    Reland "[heap] Optimize MemoryChunk::FromAnyPointerAddress" · c0994d3f
    Ulan Degenbaev authored
    This is a reland of fd49c8bb
    
    Original change's description:
    > [heap] Optimize MemoryChunk::FromAnyPointerAddress
    > 
    > Currently this function requires the caller to hold a mutex for the
    > large page chunk hashtable and performs a hashtable lookup.
    > 
    > This patch adds a header sentinel field in each MemoryChunk. The field
    > is then used to distinguish large object slots from ordinary slots.
    > 
    > Bug: chromium:915233
    > Change-Id: I9fbeeb4f07f49573d0a21f9a2cc934370e417d68
    > Reviewed-on: https://chromium-review.googlesource.com/c/1391752
    > Commit-Queue: Ulan Degenbaev <ulan@chromium.org>
    > Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
    > Cr-Commit-Position: refs/heads/master@{#58732}
    
    Bug: chromium:915233
    Change-Id: I10d23a928328169a2dc6bab78d2b7d2c5d00ebb6
    Reviewed-on: https://chromium-review.googlesource.com/c/1406672
    Commit-Queue: Ulan Degenbaev <ulan@chromium.org>
    Reviewed-by: 's avatarMichael Lippautz <mlippautz@chromium.org>
    Cr-Commit-Position: refs/heads/master@{#58876}
    c0994d3f
v8heapconst.py 19.3 KB