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A comment on Hidden latency in the Linux network stack. Parent comment
Increasing the hash size doesn't fix the unhappy bucket, but it does reduce chance that packets will ever hit it. So yes, traversal of this bucket will be slow, but it will be hit less often.
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Increasing the hash size doesn't fix the unhappy bucket, but it does reduce chance that packets will ever hit it. So yes, traversal of this bucket will be slow, but it will be hit less often.