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-bugs

[Xen-bugs] [Bug 537] Xen0 bogomips has a lot of differences with Native

To: xen-bugs@xxxxxxxxxxxxxxxxxxx
Subject: [Xen-bugs] [Bug 537] Xen0 bogomips has a lot of differences with Native Linux.
From: bugzilla-daemon@xxxxxxxxxxxxxxxxxxx
Date: Mon, 20 Feb 2006 13:22:17 +0000
Delivery-date: Mon, 20 Feb 2006 13:47:42 +0000
Envelope-to: www-data@xxxxxxxxxxxxxxxxxxx
List-help: <mailto:xen-bugs-request@lists.xensource.com?subject=help>
List-id: Xen Bugzilla <xen-bugs.lists.xensource.com>
List-post: <mailto:xen-bugs@lists.xensource.com>
List-subscribe: <http://lists.xensource.com/cgi-bin/mailman/listinfo/xen-bugs>, <mailto:xen-bugs-request@lists.xensource.com?subject=subscribe>
List-unsubscribe: <http://lists.xensource.com/cgi-bin/mailman/listinfo/xen-bugs>, <mailto:xen-bugs-request@lists.xensource.com?subject=unsubscribe>
Reply-to: bugs@xxxxxxxxxxxxxxxxxx
Sender: xen-bugs-bounces@xxxxxxxxxxxxxxxxxxx
http://bugzilla.xensource.com/bugzilla/show_bug.cgi?id=537


vincent.hanquez@xxxxxxxxxxxx changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|                            |FIXED




------- Additional Comments From vincent.hanquez@xxxxxxxxxxxx  2006-02-20 13:22 
-------
The default HZ of xen guest kernels has always been 100 (before the upgrade to
2.6.13).
The hypervisor is always running with HZ = 100 (see
xen/include/asm-x86/config.h), even if you change the kernel on top of it to
have a different HZ.

so the guest expect to run at HZ=250 but is actually running at HZ=100, which
give some weirdness (totally minor though)

BTW, bogomips (Bogus MIPS) doesn't give any real performance value, that just
for kernel internals to time the hardware. and the value has change over
different vanilla kernel too (comparing a vanilla 2.6.9 and vanilla 2.6.16 is
like comparing apples and oranges)

-- 
Configure bugmail: 
http://bugzilla.xensource.com/bugzilla/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are the assignee for the bug, or are watching the assignee.

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