linux-kernel - Re: [PATCH] mm: page_alloc: Skip regions with hugetlbfs pages when allocating 1G pages

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Fri, 14 Apr 2023 12:46:17 -0700
From:   Andrew Morton <akpm@...ux-foundation.org>
To:     Mel Gorman <mgorman@...hsingularity.net>
Cc:     Vlastimil Babka <vbabka@...e.cz>, Michal Hocko <mhocko@...e.com>,
        Oscar Salvador <OSalvador@...e.com>,
        Yuanxi Liu <y.liu@...uida.com>,
        David Hildenbrand <david@...hat.com>,
        Matthew Wilcox <willy@...radead.org>,
        Linux-MM <linux-mm@...ck.org>,
        LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] mm: page_alloc: Skip regions with hugetlbfs pages when
 allocating 1G pages

On Fri, 14 Apr 2023 15:14:29 +0100 Mel Gorman <mgorman@...hsingularity.net> wrote:

> A bug was reported by Yuanxi Liu where allocating 1G pages at runtime is
> taking an excessive amount of time for large amounts of memory.
>
> ...
>
>                    6.3.0-rc6   6.3.0-rc6   6.3.0-rc6
>                      vanilla   revert-v1   hugeallocfix-v2
> Duration User           0.28        0.27        0.30
> Duration System       808.66       17.77       35.99
> Duration Elapsed      830.87       18.08       36.33
> 

I'll put a cc:stable on this.