1. 20 Apr, 2017 1 commit
    • kozyatinskiy's avatar
      [inspector] removed kDebugPromiseCollected event · 189ffd94
      kozyatinskiy authored
      With recent CLs we always store maximum N async stack traces and when we reach limit we drop half of them.
      Current promise collected event requires creating weak handle:
      - it takes time,
      - it consumes memory.
      Since async task id distribution for promises is uniform (each new promise has last_async_task_id + 1 as an id) our hash map is good enough to handle any amount of async task ids, following time of executing 1 000 000 000 of lookups:
      - for empty hash map: 1.45 seconds,
      - for hash map with one entry: 14.95 seconds
      - 1024 entries: 15.03 seconds
      - 1024 * 1024 entries: 14.82 seconds
      - 1024 * 1024 * 1024: 17.9 seconds
      
      BUG=v8:6189
      R=dgozman@chromium.org,yangguo@chromium.org
      
      Review-Url: https://codereview.chromium.org/2819423005
      Cr-Commit-Position: refs/heads/master@{#44750}
      189ffd94
  2. 18 Dec, 2016 1 commit