linux-kernel - Re: [PATCH] Increase default MLOCK

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Date:   Mon, 22 Nov 2021 20:03:30 +0000
From:   Matthew Wilcox <willy@...radead.org>
To:     Jens Axboe <axboe@...nel.dk>
Cc:     David Hildenbrand <david@...hat.com>,
        Andrew Dona-Couch <andrew@...acou.ch>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Drew DeVault <sir@...wn.com>,
        Ammar Faizi <ammarfaizi2@...weeb.org>,
        linux-kernel@...r.kernel.org, linux-api@...r.kernel.org,
        io_uring Mailing List <io-uring@...r.kernel.org>,
        Pavel Begunkov <asml.silence@...il.com>, linux-mm@...ck.org
Subject: Re: [PATCH] Increase default MLOCK_LIMIT to 8 MiB

On Mon, Nov 22, 2021 at 12:53:31PM -0700, Jens Axboe wrote:
> We should just make this 0.1% of RAM (min(0.1% ram, 64KB)) or something
> like what was suggested, if that will help move things forward. IMHO the
> 32MB machine is mostly a theoretical case, but whatever .

I think you mean max(0.1% ram, 64KB).  with that change, I agree.