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Phoronix0 Hot0 comments1 min read
Arm Working On "TLBID" For Linux To Increase Performance On High Core Count CPUs
Arm has sent an initial set of Linux kernel patches to support TLBI Domains (TLBID), a mechanism that lets Translation Lookaside Buffer invalidation target only the CPU cores where a process actually ran instead of flushing the TLB system-wide. This is aimed at reducing overhead on high core count Arm server CPUs. No performance numbers have been published, TLBID is not yet part of the Arm Architecture Reference Manual, and the feature also requires LLVM 23+ or GNU Binutils 2.46+ for instruction support, meaning real silicon support is likely still far off.
Source: https://www.phoronix.com/news/ARM64-Linux-TLBI-Domains. 8 Sync News only summarizes and links out; content copyright belongs to the authors and original sources.
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