>>> On 30.07.15 at 20:26, wrote:
> On Thu, 2015-07-30 at 02:04 +, Wu, Feng wrote:
>> > -Original Message-
>> > From: Dario Faggioli [mailto:dario.faggi...@citrix.com]
>> > Since this is one of the differences
>> > between the two, was it the cause of the issues you were seeing? If yes,
> -Original Message-
> From: Dario Faggioli [mailto:dario.faggi...@citrix.com]
> Sent: Monday, August 03, 2015 6:02 PM
> To: Wu, Feng
> Cc: xen-devel@lists.xen.org; Keir Fraser; Jan Beulich; Andrew Cooper; Tian,
> Kevin; George Dunlap
> Subject: Re: [v4 16/17] vmx: Add some scheduler hook
On Mon, 2015-08-03 at 01:36 +, Wu, Feng wrote:
> > -Original Message-
> > From: Dario Faggioli [mailto:dario.faggi...@citrix.com]
> > It's safe in any case. In fact, the spinlock will prevent both the
> > vcpu's processor to schedule, as well as any other processors to steal
> > the w
> -Original Message-
> From: Dario Faggioli [mailto:dario.faggi...@citrix.com]
> Sent: Friday, July 31, 2015 2:27 AM
> To: Wu, Feng
> Cc: xen-devel@lists.xen.org; Keir Fraser; Jan Beulich; Andrew Cooper; Tian,
> Kevin; George Dunlap
> Subject: Re: [v4 16/17] vmx: Add some scheduler hooks
On Thu, 2015-07-30 at 02:04 +, Wu, Feng wrote:
> > -Original Message-
> > From: Dario Faggioli [mailto:dario.faggi...@citrix.com]
> > > --- a/xen/arch/x86/domain.c
> > > +++ b/xen/arch/x86/domain.c
> > > @@ -1550,9 +1550,19 @@ void context_switch(struct vcpu *prev, struct
> > vcpu *nex
> -Original Message-
> From: Dario Faggioli [mailto:dario.faggi...@citrix.com]
> Sent: Tuesday, July 28, 2015 10:16 PM
> To: Wu, Feng
> Cc: xen-devel@lists.xen.org; Keir Fraser; Jan Beulich; Andrew Cooper; Tian,
> Kevin; George Dunlap
> Subject: Re: [v4 16/17] vmx: Add some scheduler hook
On Thu, 2015-07-23 at 19:35 +0800, Feng Wu wrote:
> This patch adds the following arch hooks in scheduler:
> - vmx_pre_ctx_switch_pi():
> It is called before context switch, we update the posted
> interrupt descriptor when the vCPU is preempted, go to sleep,
> or is blocked.
>
> - vmx_post_ctx_swi
> -Original Message-
> From: Dario Faggioli [mailto:dario.faggi...@citrix.com]
> Sent: Thursday, July 23, 2015 8:50 PM
> To: Wu, Feng
> Cc: xen-devel@lists.xen.org; Tian, Kevin; Keir Fraser; George Dunlap; Andrew
> Cooper; Jan Beulich
> Subject: Re: [Xen-devel] [v4
On Thu, 2015-07-23 at 19:35 +0800, Feng Wu wrote:
> This patch adds the following arch hooks in scheduler:
>
So, preliminary question: does this mean that you have identified (and
fixed) the differences in behavior wrt the runstate based model, which
was causing performance issue?
I've been sidetr
This patch adds the following arch hooks in scheduler:
- vmx_pre_ctx_switch_pi():
It is called before context switch, we update the posted
interrupt descriptor when the vCPU is preempted, go to sleep,
or is blocked.
- vmx_post_ctx_switch_pi()
It is called after context switch, we update the posted
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