Cache V8 heap stats instead of querying them on every call#4778
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joshua-spacetime wants to merge 1 commit intomasterfrom
Open
Cache V8 heap stats instead of querying them on every call#4778joshua-spacetime wants to merge 1 commit intomasterfrom
joshua-spacetime wants to merge 1 commit intomasterfrom
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Description of Changes
Previously we would invoke V8's
GetHeapStatisticson every reducer call in order to compute thememory_allocationpart of itsExecutionStats. We already sample heap statistics periodically, so now we cache the result after each sample and just read the cached value after each call. Memory allocation is used for energy tracking and so eventual consistency is fine.API and ABI breaking changes
None
Expected complexity level and risk
1
Testing
Refactor/optimization