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Linux 6.16 Performance Regression Tracked Down In New Futex Code

@faun ・ Jul 07,2025

Linux 6.16 Performance Regression Tracked Down In New Futex Code

Linux 6.16 takes a 36% performance nosedive on AMD EPYC 9005 all thanks to FUTEXPRIVATEHASH. The quick fix? Yank it. Engineers scramble for a smarter solution.

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Trusted by developers at
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