Re: [Qemu-devel] MTTCG Tasks (kvmforum summary)

2015-09-04 Thread Lluís Vilanova
dovgaluk writes: > Lluís Vilanova писал 2015-09-04 16:00: >> Mark Burton writes: >> [...] >> * What to do about icount? >> >> What is the impact of multi-thread on icount? Do we need to disable it >> for MTTCG or can it be correct per-cpu? Can it be updated lock-step? >> >>>

Re: [Qemu-devel] MTTCG Tasks (kvmforum summary)

2015-09-04 Thread dovgaluk
Lluís Vilanova писал 2015-09-04 16:00: Mark Burton writes: [...] * What to do about icount? What is the impact of multi-thread on icount? Do we need to disable it for MTTCG or can it be correct per-cpu? Can it be updated lock-step? We need some input from the guys that use icount the most.

Re: [Qemu-devel] MTTCG Tasks (kvmforum summary)

2015-09-04 Thread dovgaluk
Hi! Alex Bennée писал 2015-09-04 10:49: * What to do about icount? What is the impact of multi-thread on icount? Do we need to disable it for MTTCG or can it be correct per-cpu? Can it be updated lock-step? Why can't we have separate icount for each CPU? Then virtual timer will be assigned to

Re: [Qemu-devel] MTTCG Tasks (kvmforum summary)

2015-09-04 Thread Lluís Vilanova
Mark Burton writes: [...] * What to do about icount? What is the impact of multi-thread on icount? Do we need to disable it for MTTCG or can it be correct per-cpu? Can it be updated lock-step? We need some input from the guys that use icount the most. >>> >>> That m

Re: [Qemu-devel] MTTCG Tasks (kvmforum summary)

2015-09-04 Thread Mark Burton
> On 4 Sep 2015, at 14:38, Lluís Vilanova wrote: > > dovgaluk writes: > >> Hi! >> Alex Bennée писал 2015-09-04 10:49: >>> * What to do about icount? >>> >>> What is the impact of multi-thread on icount? Do we need to disable it >>> for MTTCG or can it be correct per-cpu? Can it be updated loc

Re: [Qemu-devel] MTTCG Tasks (kvmforum summary)

2015-09-04 Thread Lluís Vilanova
dovgaluk writes: > Hi! > Alex Bennée писал 2015-09-04 10:49: >> * What to do about icount? >> >> What is the impact of multi-thread on icount? Do we need to disable it >> for MTTCG or can it be correct per-cpu? Can it be updated lock-step? > Why can't we have separate icount for each CPU? > The

Re: [Qemu-devel] MTTCG Tasks (kvmforum summary)

2015-09-04 Thread Mark Burton
> On 4 Sep 2015, at 11:41, Edgar E. Iglesias wrote: > > On Fri, Sep 04, 2015 at 11:25:33AM +0200, Paolo Bonzini wrote: >> >> >> On 04/09/2015 09:49, Alex Bennée wrote: >>> * Signal free qemu_cpu_kick (Paolo) >>> >>> I don't know much about this patch set but I assume this avoids the need >>>

Re: [Qemu-devel] MTTCG Tasks (kvmforum summary)

2015-09-04 Thread Edgar E. Iglesias
On Fri, Sep 04, 2015 at 11:25:33AM +0200, Paolo Bonzini wrote: > > > On 04/09/2015 09:49, Alex Bennée wrote: > > * Signal free qemu_cpu_kick (Paolo) > > > > I don't know much about this patch set but I assume this avoids the need > > to catch signals and longjmp about just to wake up? > > It wa

Re: [Qemu-devel] MTTCG Tasks (kvmforum summary)

2015-09-04 Thread Paolo Bonzini
On 04/09/2015 09:49, Alex Bennée wrote: > * Signal free qemu_cpu_kick (Paolo) > > I don't know much about this patch set but I assume this avoids the need > to catch signals and longjmp about just to wake up? It was part of Fred's patches, so I've extracted it to its own series. Removing 150 li

Re: [Qemu-devel] MTTCG Tasks (kvmforum summary)

2015-09-04 Thread Frederic Konrad
Hi Alex, On 04/09/2015 09:49, Alex Bennée wrote: Hi, At KVM Forum I sat down with Paolo and Frederic and we came up with the current outstanding tasks on MTTCG. This is not comprehensive but hopefully covers the big areas. They are sorted in rough order we'd like to get them up-streamed. * lin

[Qemu-devel] MTTCG Tasks (kvmforum summary)

2015-09-04 Thread Alex Bennée
Hi, At KVM Forum I sat down with Paolo and Frederic and we came up with the current outstanding tasks on MTTCG. This is not comprehensive but hopefully covers the big areas. They are sorted in rough order we'd like to get them up-streamed. * linux-user patches (Paolo) Paolo has already grabbed a