Re: [kvm-devel] kvm & dyntick

2007-01-14 Thread Ingo Molnar
* Dor Laor <[EMAIL PROTECTED]> wrote: > Afterwards we'll need to compensate the lost alarm signals to the > guests by using one of > - hrtimers to inject the lost interrupts for specific guests. The > problem this will increase the overall load. > - Injecting several virtual irq to the guests

Re: [kvm-devel] kvm & dyntick

2007-01-12 Thread Thomas Gleixner
On Fri, 2007-01-12 at 15:25 -0800, Dor Laor wrote: > This is great news for PV guests. > > Never-the-less we still need to improve our full virtualized guest > support. Full virtualized guests, which have their own dyntick support, are fine as long as we provide local apic emulation for them. I

RE: [kvm-devel] kvm & dyntick

2007-01-12 Thread Dor Laor
>* Ingo Molnar <[EMAIL PROTECTED]> wrote: > >> > dyntick-enabled guest: >> > - reduce the load on the host when the guest is idling >> > (currently an idle guest consumes a few percent cpu) >> >> yeah. KVM under -rt already works with dynticks enabled on both the >> host and the guest. (but it's