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AMD INVLPGB Linux Patches Updated For Broadcast TLB Invalidation
Right before Christmas Mesa engineer Rik van Riel posted Linux kernel patches to make use of the AMD INVLPGB instruction for broadcast TLB invalidation
Right before Christmas Mesa engineer Rik van Riel posted Linux kernel patches to make use of the AMD INVLPGB instruction for broadcast TLB invalidation. INVLPGB is present in AMD Ryzen and EPYC processors since Zen 3 and early data showed by Rik indicated nice improvement. Those wanting to try out these patches for some New Year fun can find them on the Linux kernel mailing list where they continue undergoing review.
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