lkml.org 
[lkml]   [2008]   [Sep]   [24]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: [PATCH 1/2] VMware guest detection for x86 and x86-64
From
Date
On Wed, 2008-09-24 at 22:23 +0800, Yan Li wrote: 
> On Wed, Sep 24, 2008 at 05:10:24PM +0300, Cristi Magherusan wrote:
> > On Wed, 2008-09-24 at 20:22 +0800, Yan Li wrote:
> > > Detects whether we are running as a VMware guest or not. Detection is
> > > based upon DMI vendor string.
> > >
> > > It provides a function:
> > > int is_vmware_guest(void)
> > > that can be used easily to detect if we are running as a VMware guest
> > > or not.
> >
> > We can also use this feature to force the HZ value to 100 or 250 at most
> > when running in a virtual environment, since VirtualBox had some issues
> > with this by taking a lot of CPU time when the HZ was set to 1000.
>
> That's good. But this function is used for detecting VMware guest
> only. Do you think VMware also suffers from this problem?
>
I don't know for sure about VMware, but someone who has it installed can
try it. I had this issue with a CentOS 5-server virtual machine
downloaded from http://www.thoughtpolice.co.uk/vmware/

The fix consisted in using a kernel compiled with the HZ value set to
100 instead of the default which was 1000.

Cristi

--
Cristi Măgherușan,
Inginer de sistem/retea
Universitatea Tehnică din Cluj-Napoca
Centrul de Comunicații "Pusztai Kalman"
Tel. 0264/401247 http://cc.utcluj.ro
[unhandled content-type:application/pgp-signature]
\
 
 \ /
  Last update: 2008-09-24 20:17    [W:0.053 / U:0.816 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site