Messages in this thread |  | | Date | Wed, 1 Apr 2026 15:10:55 +0100 | | From | Pedro Falcato <> | | Subject | Re: [PATCH v2 0/2] mm/mprotect: micro-optimization work |
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On Mon, Mar 30, 2026 at 03:55:51PM -0400, Luke Yang wrote: > Hi Pedro, > > Thanks for working on this. I just wanted to share that we've created a > test kernel with your patches and tested on the following CPUs: > > --- aarch64 --- > Ampere Altra > Ampere Altra Max > > --- x86_64 --- > AMD EPYC 7713 > AMD EPYC 7351 > AMD EPYC 7542 > AMD EPYC 7573X > AMD EPYC 7702 > AMD EPYC 9754 > Intel Xeon Gold 6126 > Into Xeon Gold 6330 > Intel Xeon Gold 6530 > Intel Xeon Platinum 8351N > Intel Core i7-6820HQ > > --- ppc64le --- > IBM Power 10 > > On average, we see improvements ranging from a minimum of 5% to a > maximum of 55%, with most improvements showing around a 25% speed up in > the libmicro/mprot_tw4m micro benchmark.
Nice! Thanks for the tests. I'm wondering, what CPU saw 5% and what CPU saw 55%? Or was it just inter-run variance?
-- Pedro
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