Add an option to disable disable measuring kudo buffer copy. #2759
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Signed-off-by: Renjie Liu <[email protected]>
Signed-off-by: Renjie Liu <[email protected]>
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When used in shuffle cases with large partition numbers, each call to
System.nanoTimeis still quite expensive compared with a small memory copy. This pr adds an option to disable this measurement and disable it by default.