From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: virtio-return-2819-cohuck=redhat.com@lists.oasis-open.org Sender: List-Post: List-Help: List-Unsubscribe: List-Subscribe: Date: Wed, 10 Jan 2018 11:47:20 +0100 From: Cornelia Huck Message-ID: <20180110114720.3d5079e6.cohuck@redhat.com> In-Reply-To: <1515577653-9336-5-git-send-email-mst@redhat.com> References: <1515577653-9336-1-git-send-email-mst@redhat.com> <1515577653-9336-5-git-send-email-mst@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Subject: Re: [virtio] [PATCH v6 4/5] packed virtqueues: more efficient virtqueue layout To: "Michael S. Tsirkin" Cc: virtio@lists.oasis-open.org, virtio-dev@lists.oasis-open.org List-ID: On Wed, 10 Jan 2018 11:47:58 +0200 "Michael S. Tsirkin" wrote: > Performance analysis of this is in my kvm forum 2016 presentation. The > idea is to have a r/w descriptor in a ring structure, replacing the used > and available ring, index and descriptor buffer. > > This is also easier for devices to implement than the 1.0 layout. > Several more enhancements will be necessary to actually make this > efficient for devices to use. > > Signed-off-by: Michael S. Tsirkin > --- > content.tex | 36 ++- > packed-ring.tex | 668 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++ > 2 files changed, 701 insertions(+), 3 deletions(-) > create mode 100644 packed-ring.tex Some minor gripes by git am: .git/rebase-apply/patch:288: trailing whitespace. Buffer ID is included in the last descriptor in the list. .git/rebase-apply/patch:342: trailing whitespace. are reserved and are ignored by the device. --------------------------------------------------------------------- To unsubscribe from this mail list, you must leave the OASIS TC that generates this mail. Follow this link to all your TCs in OASIS at: https://www.oasis-open.org/apps/org/workgroup/portal/my_workgroups.php