linux-kernel - Re: Is it possible to implement the per-node page cache for programs/libraries?

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]

Message-ID: <YS8HpUz9FUcFWt0V@zeniv-ca.linux.org.uk>
Date:   Wed, 1 Sep 2021 04:55:01 +0000
From:   Al Viro <viro@...iv.linux.org.uk>
To:     Shijie Huang <shijie@...eremail.onmicrosoft.com>
Cc:     torvalds@...ux-foundation.org, akpm@...ux-foundation.org,
        linux-mm@...ck.org, song.bao.hua@...ilicon.com,
        linux-kernel@...r.kernel.org,
        Frank Wang <zwang@...erecomputing.com>
Subject: Re: Is it possible to implement the per-node page cache for
 programs/libraries?

On Wed, Sep 01, 2021 at 11:07:41AM +0800, Shijie Huang wrote:
> Hi Everyone,
> 
>     In the NUMA, we only have one page cache for each file. For the
> program/shared libraries, the
> 
> remote-access delays longer then the  local-access.
> 
> So, is it possible to implement the per-node page cache for
> programs/libraries?

What do you mean, per-node page cache?  Multiple pages for the same
area of file?  That'd be bloody awful on coherency...