[Qemu-devel] Question about RNG virtio device

2017-11-27 Thread Dennis Chen
Hello QEMU developers, We all know that there is a virtio-rng device can be para-virtualised from the host to guest in case of a real RNG HW exists in the host, my question is: Can we get some performance gain to use the 'virtio-rng' device if there isn't a real RNG HW in host, in this case, what'

Re: [Qemu-devel] CPU utilization between physical CPU and virtual CPU in KVM

2012-10-15 Thread Dennis Chen
Any body can be help about this or a little bit clues? Thanks! On Mon, Oct 8, 2012 at 3:01 PM, Dennis Chen wrote: > Hi All, > > I am confused by the following observed scenario: > > In my 4-CPU (KVM supported, 2 core with 2 thread for each) host > machine box, I create only

[Qemu-devel] CPU utilization between physical CPU and virtual CPU in KVM

2012-10-08 Thread Dennis Chen
Hi All, I am confused by the following observed scenario: In my 4-CPU (KVM supported, 2 core with 2 thread for each) host machine box, I create only one VM with 3-vCPU through virsh/libvirt tools and also I pin this VM process to the physical processor 3. I guess the CPU utilization for the proce