• Camillo Bruni's avatar
    Reland "[runtime] Improve for-in performance" · 827e6d12
    Camillo Bruni authored
    This is a reland of 8fa7f9ed
    
    Original change's description:
    > [runtime] Improve for-in performance
    > 
    > - Add fast-path String conversion for Smi (which is the most common case)
    >   This improves for-in by ~10% on non-initialized enum-caches
    > - Don't use the NumberStringCache for large indices to not overflow the cache
    >   during key collection. This improves worst-case performance by ~2.5x
    > - Drop number_to_string_native and number_to_string_runtime counters
    > 
    > Bug: v8:7717
    > Change-Id: Ic1ff385e3374e6a7e7e7bdb9ae75fb8c238105d1
    > Reviewed-on: https://chromium-review.googlesource.com/1167049
    > Reviewed-by: Toon Verwaest <verwaest@chromium.org>
    > Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
    > Commit-Queue: Camillo Bruni <cbruni@chromium.org>
    > Cr-Commit-Position: refs/heads/master@{#55233}
    
    Bug: v8:7717
    Change-Id: Ie29041b20ca4a06b8e74a4378e7c1118373072ae
    Reviewed-on: https://chromium-review.googlesource.com/1183721
    Commit-Queue: Camillo Bruni <cbruni@chromium.org>
    Reviewed-by: 's avatarUlan Degenbaev <ulan@chromium.org>
    Reviewed-by: 's avatarToon Verwaest <verwaest@chromium.org>
    Cr-Commit-Position: refs/heads/master@{#55316}
    827e6d12
heap-inl.h 22.2 KB