This is an archived copy of the Xen.org mailing list, which we have preserved to ensure that existing links to archives are not broken. The live archive, which contains the latest emails, can be found at http://lists.xen.org/
Home Products Support Community News


Re: [Xen-devel] [PATCH] Add DOM0_GETDOMAININFOLIST op for bulk retrieval

To: xen-devel@xxxxxxxxxxxxxxxxxxx
Subject: Re: [Xen-devel] [PATCH] Add DOM0_GETDOMAININFOLIST op for bulk retrieval of domain info
From: Josh Triplett <josht@xxxxxxxxxx>
Date: Fri, 24 Jun 2005 16:09:25 -0700
Delivery-date: Fri, 24 Jun 2005 23:08:25 +0000
Envelope-to: www-data@xxxxxxxxxxxxxxxxxxx
In-reply-to: <1119654457.6721.14.camel@xxxxxxxxxxxxxxxxxxxxx>
List-help: <mailto:xen-devel-request@lists.xensource.com?subject=help>
List-id: Xen developer discussion <xen-devel.lists.xensource.com>
List-post: <mailto:xen-devel@lists.xensource.com>
List-subscribe: <http://lists.xensource.com/cgi-bin/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xensource.com?subject=subscribe>
List-unsubscribe: <http://lists.xensource.com/cgi-bin/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xensource.com?subject=unsubscribe>
References: <1119654457.6721.14.camel@xxxxxxxxxxxxxxxxxxxxx>
Sender: xen-devel-bounces@xxxxxxxxxxxxxxxxxxx
On Fri, 2005-06-24 at 16:07 -0700, Josh Triplett wrote:
> The attached patch adds a new dom0_op, DOM0_GETDOMAININFOLIST.  This
> operation allows retrieval of the domain info structures for all domains
> in one hypercall.
> Using a small test program, on a system with 97 domains with
> non-contiguous domain IDs, I found that with this hypercall I could
> retrieve the full array of info structures 12840 times per second, an
> improvement from 2380 times per second with the DOM0_GETDOMAININFO op.
> The patch also adds a libxc wrapper for this new hypercall.

Forgot to add that this patch is
Signed-off-by: Josh Triplett <josht@xxxxxxxxxx>

- Josh Triplett

Xen-devel mailing list

<Prev in Thread] Current Thread [Next in Thread>