From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from atrey.karlin.mff.cuni.cz ([195.113.26.193]:56333 "EHLO atrey.karlin.mff.cuni.cz" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932141AbcJGShA (ORCPT ); Fri, 7 Oct 2016 14:37:00 -0400 Date: Fri, 7 Oct 2016 20:36:56 +0200 From: Pavel Machek To: Josef Bacik Cc: axboe@fb.com, linux-block@vger.kernel.org, linux-kernel@vger.kernel.org, kernel-team@fb.com, nbd-general@lists.sourceforge.net, w@uter.be, hch@infradead.org Subject: Re: [PATCH][V2] nbd: add multi-connection support Message-ID: <20161007183656.GE19976@amd> References: <1473950634-4299-1-git-send-email-jbacik@fb.com> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="MIdTMoZhcV1D07fI" In-Reply-To: <1473950634-4299-1-git-send-email-jbacik@fb.com> Sender: linux-block-owner@vger.kernel.org List-Id: linux-block@vger.kernel.org --MIdTMoZhcV1D07fI Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable 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= =2E This > coupled with block-mq drastically increases performance in multi-process = cases. > Thanks, >=20 > Signed-off-by: Josef Bacik Idea is that it can now use multiple CPUs concurrently...? Do you have a diff for the nbd-server, too? Pavel --=20 (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blo= g.html --MIdTMoZhcV1D07fI Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iEYEARECAAYFAlf360gACgkQMOfwapXb+vJqtgCgh/vAYn7Tzx2BkolV9tixHVL4 j4UAoJ8mNl8IsKP7QHnI8xj7QMNi74Qz =rfFB -----END PGP SIGNATURE----- --MIdTMoZhcV1D07fI--