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Type:
Sub-task
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Status: Resolved
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Priority:
Critical
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Resolution: Fixed
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Affects Version/s: None
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Component/s: nodemanager, resourcemanager
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Labels:None
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Target Version/s:
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Hadoop Flags:Reviewed
This JIRA is plan to add following misc perf improvements:
1) Use final int in Resources/ResourceCalculator to cache #known-resource-types. (Significant improvement).
2) Catch Java's ArrayOutOfBound Exception instead of checking array.length every time. (Significant improvement).
3) Avoid setUnit validation (which is a HashSet lookup) when initialize default Memory/VCores ResourceInformation (Significant improvement).
4) Avoid unnecessary loop array in Resource#toString/hashCode. (Some improvement).
5) Removed readOnlyResources in BaseResource. (Minor improvement).
6) Removed enum: MandatoryResources, use final integer instead. (Minor improvement).
