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] Re: [PATCH] Allow removing writable mappings from splint

To: deshantm@xxxxxxxxx
Subject: Re: [Xen-devel] Re: [PATCH] Allow removing writable mappings from splintered page tables.
From: "George Dunlap" <George.Dunlap@xxxxxxxxxxxxx>
Date: Mon, 15 Sep 2008 18:03:33 +0100
Cc: Gianluca Guida <gianluca.guida@xxxxxxxxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx>
Delivery-date: Mon, 15 Sep 2008 10:03:59 -0700
Dkim-signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:received:received:message-id:date:from:sender :to:subject:cc:in-reply-to:mime-version:content-type :content-transfer-encoding:content-disposition:references :x-google-sender-auth; bh=uFQUBcoUygKdN+Dhf3R0b+VtRDdeJ8J9KzwbBLvQOs8=; b=hAhU5FJYH+LYyaDTBJCQv0FaBOuT61DJwRH5zIHmQEo5anwWbYgpPhD8Hrkhen7x36 Rn1aN6Rz163xkRklSDzMcELuwEdNbSR6QZ3ZA3Hk8Oyu9IN6vODoIsxxuHd1asg4LJ0g ZB87Codmc2RPDxwD/EimU/3wC2GTftY7c0jFo=
Domainkey-signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:sender:to:subject:cc:in-reply-to:mime-version :content-type:content-transfer-encoding:content-disposition :references:x-google-sender-auth; b=KCAwDbSyYlpmcAJS0G3xv5Duk7fuzAvvz7wbASYwC0dkSEb8SaeMHcVk/XbyNqYHId Y4COcQ0nRdatdusz0Ip8yCwNuL7Ez46hLUuAo56YG3ofs8QBsd2cmJhwgFRLXqgfAX5n 68coE3z6MispUqPXjKcVqYTH4GxczETywCDSg=
Envelope-to: www-data@xxxxxxxxxxxxxxxxxxx
In-reply-to: <1e16a9ed0809150930jc3b10c6i4af96161fe0860b@xxxxxxxxxxxxxx>
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/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xensource.com?subject=subscribe>
List-unsubscribe: <http://lists.xensource.com/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xensource.com?subject=unsubscribe>
References: <48CA9E19.2030201@xxxxxxxxxxxxx> <1e16a9ed0809121008q66f8d6b8w53337d6157fc0542@xxxxxxxxxxxxxx> <48CAA369.7020205@xxxxxxxxxxxxx> <1e16a9ed0809121252v254889e5x6ea046865c66cd95@xxxxxxxxxxxxxx> <de76405a0809150338x71d89418sa3fe659756d35fe5@xxxxxxxxxxxxxx> <1e16a9ed0809150930jc3b10c6i4af96161fe0860b@xxxxxxxxxxxxxx>
Sender: xen-devel-bounces@xxxxxxxxxxxxxxxxxxx
Heh... the blatant copying is flattering and annoying at the same
time. :-)  Ah, the beauty of open-source...

I've got your trace, and I'll take a look at it tomorrow. Thanks!


On Mon, Sep 15, 2008 at 5:30 PM, Todd Deshane <deshantm@xxxxxxxxx> wrote:
> On Mon, Sep 15, 2008 at 6:38 AM, George Dunlap
> <George.Dunlap@xxxxxxxxxxxxx> wrote:
>> And your original numbers showed elapsed time to be 527s for KVM, so
>> now Xen is 8 seconds in the lead for HVM Linux. :-)  Thanks for the
>> help tracking this down!
> KVM is also working on improved page table algorithms
> http://www.mail-archive.com/kvm@xxxxxxxxxxxxxxx/msg03562.html
> I think the competition is a good thing.
>> If you have time, could you take another 30-second trace with the new
>> changes in, just for fun?  I'll take a quick look and see if there's
>> any other low-hanging fruit to grab.
> Sent the trace to you with another service called sendspace, since, for
> some reason, the trace file was much bigger.
> Todd
> --
> Todd Deshane
> http://todddeshane.net
> check out our book: http://runningxen.com
> _______________________________________________
> Xen-devel mailing list
> Xen-devel@xxxxxxxxxxxxxxxxxxx
> http://lists.xensource.com/xen-devel

Xen-devel mailing list