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AVX-512 xor_gen Continues To Look Exciting For Helping Linux RAID With Modern CPUs

16 août 2026 à 10:54
Google engineer Eric Biggers back in June posted an AVX-512 optimization for Linux RAID yielding up to a 41% improvement on a modern AMD Ryzen 9 9950X (Zen 5) processor. A revised patch then put it as much as a 43% improvement for this AVX-512 optimized xor_gen() function. The code hasn't yet been merged to mainline but an updated version of it is now available...

Linux 7.3 binfmt_misc To Allow BPF Programs To Dynamically Choose Execution Environments

16 août 2026 à 10:37
The Linux kernel's binfmt_misc functionality allows non-native/custom files to be run directly such as for Windows EXE files to be handled by Wine or JAR files to be handled by the Java runtime. For the upcoming Linux 7.3 merge window, the miscellaneous binary formats support is being extended so a binary type can be matched programmatically and the interpreter determined on a per-exec basis. BPF programs can also then be attached to dynamically choosing an execution environment on a per-binary basis...
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