Thank you my friend! On Wed, Jun 12, 2019 at 12:48 PM Alex Bennée <alex.ben...@linaro.org> wrote:
> You've actually contacted the development list but I can answer the > question. > > QEMU is multi-threaded so there will be a thread per KVM based vCPU > (and also for TCG based vCPUs where MTTCG is enabled). There will also > be a number of additional threads created including at least one for > the main monitor thread and potentially additional threads for > servicing IO requests. So expect to see $SMP + 1 + n threads for each > QEMU instance. > > On Wed, 12 Jun 2019 at 16:32, Ryan Boyce <ryanpboyc...@gmail.com> wrote: > > > > Hi Stefan, > > > > I am a big fan of your blog! In relation to your blog post, > > > http://blog.vmsplice.net/2011/03/qemu-internals-big-picture-overview.html, > > I have a question I am really hoping you can answer: > > > > When I start a VM, I see that the qemu-kvm processes start and run as > > "qemu-kvm..... -name "something1"...." > > My issue, though, is I see multiple processes running as "qemu-kvm..... > > -name "something1"...." and each of these processes has memory/cpu/disk > > mapped to it. > > Does qemu-kvm run VMs on a one-to-one VM-to-host process basis? Or does > > each virtual cpu on the guest get its own process on the host? > > For example, If I have a VM that has 4 virtual cpus, will I see 4 > processes > > (PIDs) on the host or should I see just see one for the VM itself. > > > > Any help you can give would be GREATLY appreciated. Thank you! > > > > Ryan > > > > -- > Alex Bennée > KVM/QEMU Hacker for Linaro >
