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Linux 6.16.1 Fixes A Large Intel GPU Driver Performance Regression - Up To 30%
Released on Friday were the Linux 6.16.1 and Linux 6.15.10 stable kernel point releases
The good news is this regression is now fixed by this patch that made it into the stable Linux kernel releases on Friday: "After commit acd7ccb284b8 ("mm: shmem: add large folio support for tmpfs"), we extend the 'huge=' option to allow any sized large folios for tmpfs, which means tmpfs will allow getting a highest order hint based on the size of write() and fallocate() paths, and then will try each allowable large order. : In my tests, the performance drop ranges from a few percent up to 13% in Unigine Superposition under heavy memory usage on the CPU Core Ultra 155H with the Xe 128 EU GPU.
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