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Andrei Shikov 290dae9df5 Move preallocation calls to background under MC 
Summary:
Preallocation can take 10-20% of time when creating new nodes. (according to systrace measurements). At the moment, we are executing all preallocation calls in JS thread, potentially slowing down the progress there. Moving them to bg thread is a simple micro-optimization that ensures we return the node to JS as soon as possible.

Changelog: [Internal]

Reviewed By: sammy-SC

Differential Revision: D32677843

fbshipit-source-id: 3df47ae9aa365a8db720d71e2423c87659e9128c
2021-11-30 09:17:39 -08:00
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com/facebook
Move preallocation calls to background under MC
2021-11-30 09:17:39 -08:00