WARNING - OLD ARCHIVES

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/
   
 
 
Xen 
 
Home Products Support Community News
 
   
 

xen-devel

Re: [SPAM] Re: [Xen-devel] [SPAM] About the differences between Version

To: Fang Yuming <fangyuming@xxxxxxxxxxxxxxxxxx>
Subject: Re: [SPAM] Re: [Xen-devel] [SPAM] About the differences between Version 3.3 and Version 3.0
From: Samuel Thibault <samuel.thibault@xxxxxxxxxxxxx>
Date: Thu, 28 Aug 2008 14:56:32 +0100
Cc: xen-devel@xxxxxxxxxxxxxxxxxxx
Delivery-date: Thu, 28 Aug 2008 06:57:14 -0700
Envelope-to: www-data@xxxxxxxxxxxxxxxxxxx
In-reply-to: <6138CCD83C6244738B8327DCAC94CECF@ff76d11953be449>
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>
Mail-followup-to: Samuel Thibault <samuel.thibault@xxxxxxxxxxxxx>, Fang Yuming <fangyuming@xxxxxxxxxxxxxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxx
References: <419869332.17872@xxxxxxxxxxx> <7820E802F3B24CF3B3D1BCBB1F907793@ff76d11953be449> <419931538.27194@xxxxxxxxxxx> <6138CCD83C6244738B8327DCAC94CECF@ff76d11953be449>
Sender: xen-devel-bounces@xxxxxxxxxxxxxxxxxxx
User-agent: Mutt/1.5.12-2006-07-14
Fang Yuming, le Thu 28 Aug 2008 21:49:29 +0800, a écrit :
> >> Do these codes include the algorithm processing disk requests from
> >> different domains?
> > 
> > No, Xen just lets linux do that, in block/*iosched.c
> 
> Does this mean that I should modify the dom0(linux) kernel( in 
> block/*iosched.c) if I want to do some experiments 
> about the disk scheduling algorithm of virtual disk scheduling algorithm?

Since that's the component that does it, yes.

> >> 3. I found the newest Version is Version 3.3, can anyone tell me the 
> >> majors differences between 
> >> Version 3.3 and Version 3.0?
> > 
> > See the announces of 3.1, 3.2 and 3.3.
> > 
> >> And is there any change in the part of virtual disk, especially the
> >> scheduling alogithm of different disk requests from domains?
> > 
> > Again, that's just dom0's Linux matter.
> 
> From your answers, I know that if I want to do some research on virtual disk 
> schedling algorithm, I should 
> modify the disk scheduling part of linux kernel and it is no need to change 
> other parts of Xen?

Indeed. You may want to make the block backend provide the domid to the
io scheduler for e.q. better fairness, however.

Samuel

_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel

<Prev in Thread] Current Thread [Next in Thread>
  • Re: [SPAM] Re: [Xen-devel] [SPAM] About the differences between Version 3.3 and Version 3.0, Samuel Thibault <=