Hi, Dan > Perhaps we need to support both.. > Well, I think so. I consider this correction again because I think that priority is low. Thanks, Masayuki Sunou. -------------------------------------------------------------------- > On Thu, Feb 22, 2007 at 03:44:12PM +0900, Masayuki Sunou wrote: > > Hi, > > > > I have a question about CPU Usage of virt-manager. > > > > Virt-manager calculates CPU Usage based on physical CPU. > > Because of that, when the host has many CPU, guest's CPU Usage is difficult > > to know. (SMP etc.) > > > > example: > > When the host has 32 CPU, and guest's CPU Usage is 100%, virt-manager > > displays CPU Usage as 3%. > > --> 100%/32CPU=3% > > > > Therefore, I think that virt-manager should calculate CPU Usage based on > > virtual CPU.(like "xentop") > > > > Because "Xentop" calculates CPU Usage based on virtual CPU, I think that > > virt-manager should also calculate CPU Usage based on virtual CPU. > > The reason for calculating usage based on physical CPU is to illustrate > what % of the host machine's resources are being used by a particular > machine. eg it makes is very easy to see that 'Guest X' is taking up 50% > of the host's compute cycles. Simiarly memory is calculated against > physical RAM. While calculating CPU usage based on virtual CPUs would > make it easier to see how much of its own allocation a guest is using, it > would be harder to visualize overall host utilization. > > Perhaps we need to support both.. > > Dan. > -- > |=- Red Hat, Engineering, Emerging Technologies, Boston. +1 978 392 2496 -=| > |=- Perl modules: http://search.cpan.org/~danberr/ -=| > |=- Projects: http://freshmeat.net/~danielpb/ -=| > |=- GnuPG: 7D3B9505 F3C9 553F A1DA 4AC2 5648 23C1 B3DF F742 7D3B 9505 -=| > > _______________________________________________ > et-mgmt-tools mailing list > et-mgmt-tools@xxxxxxxxxx > https://www.redhat.com/mailman/listinfo/et-mgmt-tools >
