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charset=UTF-8 Content-Transfer-Encoding: 7bit X-Rspamd-Server: rspam11 X-Rspamd-Queue-Id: 59B06180010 X-Stat-Signature: 7znhfgb4jx14ut615yorfahajs77oq98 X-Rspam-User: X-HE-Tag: 1743083203-416702 X-HE-Meta: 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 UyG8trUB KqbjnPnuKskpo6GzUzpQiwVJRCeHKMtaVZeBLOvSYM6rDoG+P21/+w+UNvv3sIR3vPBMSqH2Of55B2b/L9utFqwFDEJbKzTiPAPN2tEe0WvqmM7SZtTQ/tPnlqGicmOg5z3kXpIxahsJpZFIjgeAjWluxQw== X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On 27/03/2025 08:16, Uladzislau Rezki wrote: > On Tue, Mar 04, 2025 at 03:04:30PM +0000, Ryan Roberts wrote: >> Hi All, >> >> This is v3 of a series to improve performance for hugetlb and vmalloc on arm64. >> Although some of these patches are core-mm, advice from Andrew was to go via the >> arm64 tree. Hopefully I can get some ACKs from mm folks. >> >> The 2 key performance improvements are 1) enabling the use of contpte-mapped >> blocks in the vmalloc space when appropriate (which reduces TLB pressure). There >> were already hooks for this (used by powerpc) but they required some tidying and >> extending for arm64. And 2) batching up barriers when modifying the vmalloc >> address space for upto 30% reduction in time taken in vmalloc(). >> >> vmalloc() performance was measured using the test_vmalloc.ko module. Tested on >> Apple M2 and Ampere Altra. Each test had loop count set to 500000 and the whole >> test was repeated 10 times. >> > I will have a look and review just give me some time :) Thanks for the reviews - appreciate it! > > -- > Uladzislau Rezki