linux-kernel - Re: [PATCH][V2] nbd: add multi-connection support

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: <20161007183656.GE19976@amd>
Date:   Fri, 7 Oct 2016 20:36:56 +0200
From:   Pavel Machek <pavel@....cz>
To:     Josef Bacik <jbacik@...com>
Cc:     axboe@...com, linux-block@...r.kernel.org,
        linux-kernel@...r.kernel.org, kernel-team@...com,
        nbd-general@...ts.sourceforge.net, w@...r.be, hch@...radead.org
Subject: Re: [PATCH][V2] nbd: add multi-connection support

On Thu 2016-09-15 10:43:54, Josef Bacik wrote:
> NBD can become contended on its single connection.  We have to serialize all
> writes and we can only process one read response at a time.  Fix this by
> allowing userspace to provide multiple connections to a single nbd device.  This
> coupled with block-mq drastically increases performance in multi-process cases.
> Thanks,
> 
> Signed-off-by: Josef Bacik <jbacik@...com>

Idea is that it can now use multiple CPUs concurrently...?

Do you have a diff for the nbd-server, too?
									Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html

Download attachment "signature.asc" of type "application/pgp-signature" (182 bytes)