> Is it possible to limit cpu usage be VM when using qemu+kvm? > First thing you can do is to only provide one or two virtual CPUs to a VM. This is normally a not to bad way to limit CPU usage. But maybe cgroups can help you more: http://www.mjmwired.net/kernel/Documentation/cgroups.txt > I need one server to run a lot of VMs (much more than cpu cores I > have). Each VM must have it's guaranted cpu time or time slice it must > use. > > Is it possible to make such limits? Is it possible to modify > /proc/cpuinfo of VMs? > > You can start Qemu/KVM with different "-cpu" parameter: bern:~ # qemu-kvm -cpu ? x86 qemu64 x86 phenom x86 core2duo x86 kvm64 x86 qemu32 x86 coreduo x86 486 x86 pentium x86 pentium2 x86 pentium3 x86 athlon x86 n270 Or just provied "-cpu host". Then you get the same output inside the guest as the host. - Robert -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
