I’m not a Java expert, but potentially due to the CPU/memory OS scheduler? Try r... | Hacker News

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		plasma on Feb 5, 2022 \| parent \| context \| favorite \| on: Java BitSet performance-flicker mystery I’m not a Java expert, but potentially due to the CPU/memory OS scheduler? Try running the workload with pinned CPUs assigned and not across NUMA nodes.

myrryr on Feb 6, 2022 [–]

Try running the workload with pinned CPUs assigned ^^^--- it will be this.

I've run into the same weirdness on other things and this always solves it. Some cores are better at some things than others.

cospaia on Feb 6, 2022 | [–]

It was indeed this.

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