RE: questions about DVFS in saving energy

2009-05-14 Thread Tomas L. Byrnes
ilto:k...@theangryangel.co.uk] >Sent: Thursday, May 14, 2009 1:10 AM >To: Tomas L. Byrnes >Cc: na...@merit.edu >Subject: Re: questions about DVFS in saving energy > >Tomas L. Byrnes wrote: >> Basically the CPU scaling on the host makes the guest OS fall apart. >> >Apologi

Re: questions about DVFS in saving energy

2009-05-14 Thread Karl Southern
Tomas L. Byrnes wrote: Basically the CPU scaling on the host makes the guest OS fall apart. Apologies for the general noise (and even more apologies for stepping outside of the nanog scope), but if it's timing related issues does /usepmtimer not resolve this issue for the VMs? It certainly d

RE: questions about DVFS in saving energy

2009-05-13 Thread Tomas L. Byrnes
o:neno...@systeminplace.net] >Sent: Wednesday, May 13, 2009 3:20 PM >To: Tomas L. Byrnes; Kai Chen; na...@merit.edu >Subject: Re: questions about DVFS in saving energy > >Xen handles the AMD HE CPUs just fine here. What sort of breakage are >you experiencing? > >William >--Original Mes

Re: questions about DVFS in saving energy

2009-05-13 Thread William Pitcock
Xen handles the AMD HE CPUs just fine here. What sort of breakage are you experiencing? William --Original Message-- From: Tomas L. Byrnes To: Kai Chen To: na...@merit.edu Subject: RE: questions about DVFS in saving energy Sent: May 13, 2009 2:31 PM -Original Message- From: Kai

RE: questions about DVFS in saving energy

2009-05-13 Thread Tomas L. Byrnes
-Original Message- From: Kai Chen [mailto:kch...@eecs.northwestern.edu] Sent: Wednesday, May 13, 2009 12:25 PM To: na...@merit.edu Subject: questions about DVFS in saving energy Hi, could anyone here have some idea of the following questions about Dynamic Voltage/Frequency Scaling techni