Wilfred Spiegelenburg created YUNIKORN-2840:
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Summary: sortQueues: fair max performance and correctness change
Key: YUNIKORN-2840
URL: https://issues.apache.org/jira/browse/YUNIKORN-2840
Project: Apache YuniKorn
Issue Type: Improvement
Components: core - scheduler
Reporter: Wilfred Spiegelenburg
In YUNIKORN-2678 the fair queue sorting was improved to take guaranteed quota
into account correctly. During the review there were two minor points left over
that would need improving:
* performance
* correctness on change
Currently {{GetFairMaxResource()}} gets called for each child this does a
recursive call back up the queue hierarchy. This is a performance loss
specially when sorting a deep hierarchy or a larger number of children.
The parent details for a real fair comparison between the children should also
not change. When they do, as in the current implementation, two children might
use different inputs when sorted.
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