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Intel Spots A 3888.9% Performance Improvement In The Linux Kernel From One Line Of Code
Intel's Linux kernel test robot has reported a 3888.9% performance improvement in the mainline Linux kernel as of this past week.
The commit in question causing this massive uplift to performance is mm, mmap: limit THP alignment of anonymous mappings to PMD-aligned sizes. The patch message confirms it will fix some prior performance regressions and deliver some major uplift in specialized cases. I'll be firing up some benchmarks on my side to look for any other real-world workloads seeing any measurable shift in performance with this latest Linux kernel code beyond the smaller synthetic test cases.
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