Status: New
Owner: ----
New issue 3337 by [email protected]: Not caching map transitions when
using SetIndexedPropertiesToExternalArrayData()
http://code.google.com/p/v8/issues/detail?id=3337
Commit https://github.com/v8/v8/commit/a101c7c introduced a bug where each
use of SetIndexedPropertiesToExternalArrayData() creates a new map.
For reference here's a flame graph from before that commit:
https://i.cloudup.com/3izdGPouy7.svg
And one after: https://i.cloudup.com/iF5DoL92rB.svg
You'll see a massive increase in StorIC_Miss and LoadIC_Miss.
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