Re:Java BitSet performance-flicker mystery
by cospaia on Sunday February 06, 2022 @11:42AM
(#30234131)
That's some pretty impressive results. Not seen the sieve perform on that level before.
Re:Java BitSet performance-flicker mystery
by Codeguard on Sunday February 06, 2022 @09:28AM
(#30232755)
Can you see the problem at all when Docker is NOT involved?
Re:Java BitSet performance-flicker mystery
by cospaia on Sunday February 06, 2022 @11:41AM
(#30234118)
No, I haven't seen this particular thing happening without Docker. It seems to be a NUMA issue, btw, see https://news.ycombinator.com/item?id=30231945
Results: Time: 14010, Passes: 10000, count: 78498, Valid: true Time: 14208, Passes: 10000, count: 78498, Valid: true Time: 14111, Passes: 10000, count: 78498, Valid: true Time: 13869, Passes: 10000, count: 78498, Valid: true Time: 14119, Passes: 10000, count: 78498, Valid: true Time: 13916, Passes: 10000, count: 78498, Valid: true Time: 13903, Passes: 10000, count: 78498, Valid: true Time: 13890, Passes: 10000, count: 78498, Valid: true Time: 14024, Passes: 10000, count: 78498, Valid: true Time: 13924, Passes: 10000, count: 78498, Valid: true Time: 14180, Passes: 10000, count: 78498, Valid: true Time: 13980, Passes: 10000, count: 78498, Valid: true Time: 13825, Passes: 10000, count: 78498, Valid: true Time: 13800, Passes: 10000, count: 78498, Valid: true Time: 14041, Passes: 10000, count: 78498, Valid: true Time: 13941, Passes: 10000, count: 78498, Valid: true
Running on: JDK 11.0.8 on Windows, with somewhat old Intel Core i7-3740QM
[1] https://github.com/PEZ/ghost-chase-condition/tree/master/tes...