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Posted to dev@yunikorn.apache.org by "Wilfred Spiegelenburg (Jira)" <ji...@apache.org> on 2026/10/08 02:03:00 UTC

[jira] [Created] (YUNIKORN-3503) Improve pre-allocate for slices

Wilfred Spiegelenburg created YUNIKORN-3503:
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             Summary: Improve pre-allocate for slices
                 Key: YUNIKORN-3503
                 URL: https://issues.apache.org/jira/browse/YUNIKORN-3503
             Project: Apache YuniKorn
          Issue Type: Improvement
          Components: core - common, shim - kubernetes
            Reporter: Wilfred Spiegelenburg
            Assignee: Shree Govind Mishra


change slice pre-allocation from 2 to 3 parameters to improve performance:

Lots of slices use a call like `make([]type, 0)` and then iterate over a map or other slice to copy a known max number of objects and add them using `append()` we should use the 3 parameter option to limit the re-allocations: make([]type, 0, len(rangeObj))`



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