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


[Xen-devel] Re: A proposal - binary

To: Adrian Bunk <bunk@xxxxxxxxx>
Subject: [Xen-devel] Re: A proposal - binary
From: Andi Kleen <ak@xxxxxxx>
Date: Sat, 5 Aug 2006 13:57:09 +0200
Cc: Zachary Amsden <zach@xxxxxxxxxx>, Andrew Morton <akpm@xxxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxx, Christoph Hellwig <hch@xxxxxxxxxxxxx>, Jack Lo <jlo@xxxxxxxxxx>, Greg KH <greg@xxxxxxxxx>, Rusty Russell <rusty@xxxxxxxxxxxxxxx>, Linux Kernel Mailing List <linux-kernel@xxxxxxxxxxxxxxx>, Chris Wright <chrisw@xxxxxxxxxxxx>, virtualization@xxxxxxxxxxxxxx, Linus Torvalds <torvalds@xxxxxxxx>, James.Bottomley@xxxxxxxxxxxx, pazke@xxxxxxxxx
Delivery-date: Sat, 05 Aug 2006 04:58:12 -0700
Envelope-to: www-data@xxxxxxxxxxxxxxxxxx
In-reply-to: <20060805104735.GS25692@xxxxxxxxx>
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: <44D1CC7D.4010600@xxxxxxxxxx> <200608050001.52535.ak@xxxxxxx> <20060805104735.GS25692@xxxxxxxxx>
Sender: xen-devel-bounces@xxxxxxxxxxxxxxxxxxx
User-agent: KMail/1.9.3
> Has anyone measured the performance impact of rutime CLOCK_TICK_RATE 
> switching (since this will no longer allow some compile time 
> optimizations in jiffies.h)?

SUSE shipped a kernel briefly that had runtime switchable jiffies
and there were some benchmarks done and they didn't show noticeable

But with hr timers it should be pretty much obsolete anyways.


Xen-devel mailing list