Hans-Christian Andersen
hans.andersen at phulse.com
Tue Nov 22 22:59:10 CST 2011
John, This could also be a sign of heavy IO utilisation that is only being measured in ring 0. Best regards, Hans-Christian Andersen On 22 Nov 2011, at 19:25, jwcolby <jwcolby at colbyconsulting.com> wrote: > I think I have found the answer to the question, which is that the "host" windows system is not in fact the host system, Hyper-V is the host system. And Hyper-V is in fact showing 6% usage which is one out of 16 cores. > > Sorry for the ring. > > John W. Colby > Colby Consulting > > Reality is what refuses to go away > when you do not believe in it > > On 11/22/2011 10:05 PM, jwcolby wrote: >> I decided to try moving my VMs to Azul server, my "big" server. I figured with 16 cores and 64 gigs >> it could handle the load. The sole purpose of one of the VMs is to host a third party application. >> When this app is running the VM says that the single core I assign to it is pegged, 100% >> utilization. However none of the host machine cores shows any significant usage, and the total >> server usage bounces between 0 and 1%. >> >> So I'm wondering what the heck is going on? The application on the dedicated VM server was >> processing about 8-9 million records per hour on a 3.5 GHz AMD quad core, and on that host machine >> one of the cores would appear to be maxed out and the server would say 25% usage. On the mongo >> server the CPUs are 2 GHz 8 core and no core says it is busy and I'm only getting about 4 million >> records / hour. I expected one core to max and the total to say 1/16th total usage. >> >> Any ideas why this VM says it is using 100% of its virtual CPU but the host server says it is not >> busy at all? >> > _______________________________________________ > dba-VB mailing list > dba-VB at databaseadvisors.com > http://databaseadvisors.com/mailman/listinfo/dba-vb > http://www.databaseadvisors.com >