On Mon, Nov 26, 2012 at 05:38:04PM +0530, Raghavendra K T wrote:
> From: Raghavendra K T
>
> yield_to returns -ESRCH, When source and target of yield_to
> run queue length is one. When we see three successive failures of
> yield_to we assume we are in potential undercommit case and abort
> from P
On Mon, Nov 26, 2012 at 05:37:54PM +0530, Raghavendra K T wrote:
> From: Peter Zijlstra
>
> In case of undercomitted scenarios, especially in large guests
> yield_to overhead is significantly high. when run queue length of
> source and target is one, take an opportunity to bail out and return
> -
On 05.11.2012, at 04:40, Paul Mackerras wrote:
> Here are some fixes for PR-style KVM. With these I can successfully
> run a pseries (PAPR) guest under PR KVM on a POWER7. (This is all
> running inside a HV KVM virtual machine.) The patches are against
> Alex Graf's kvm-ppc-next branch.
Thank
On 23.11.2012, at 22:42, Paul Mackerras wrote:
> On Fri, Nov 23, 2012 at 03:13:09PM +0100, Alexander Graf wrote:
>>
>> On 22.11.2012, at 10:25, Paul Mackerras wrote:
>>
>>> + /* Do they have an SLB shadow buffer registered? */
>>> + slb = vcpu->arch.slb_shadow.pinned_addr;
>>> + if (!slb)
https://bugzilla.kernel.org/show_bug.cgi?id=50921
--- Comment #13 from Lucio Crusca 2012-11-26 13:13:56 ---
@Alan: see comment #5, since then I've always tested with and without vbox
modules.
@Gleb: can't run on 3.5.0 right now, I'll take the stack trace ASAP.
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On 23.11.2012, at 23:07, Paul Mackerras wrote:
> On Fri, Nov 23, 2012 at 04:43:03PM +0100, Alexander Graf wrote:
>>
>> On 22.11.2012, at 10:28, Paul Mackerras wrote:
>>
>>> - With the possibility of the host paging out guest pages, the use of
>>> H_LOCAL by an SMP guest is dangerous since the g
On 24.11.2012, at 10:32, Paul Mackerras wrote:
> On Sat, Nov 24, 2012 at 10:05:37AM +0100, Alexander Graf wrote:
>>
>>
>> On 23.11.2012, at 23:13, Paul Mackerras wrote:
>>
>>> On Fri, Nov 23, 2012 at 04:47:45PM +0100, Alexander Graf wrote:
On 22.11.2012, at 10:28, Paul Mackerras wr
Gleb Natapov wrote on 2012-11-26:
> On Mon, Nov 26, 2012 at 03:51:04AM +, Zhang, Yang Z wrote:
>> Gleb Natapov wrote on 2012-11-25:
>>> On Wed, Nov 21, 2012 at 04:09:39PM +0800, Yang Zhang wrote:
Posted Interrupt allows vAPICV interrupts to inject into guest directly
without any vmexi
From: Raghavendra K T
yield_to returns -ESRCH, When source and target of yield_to
run queue length is one. When we see three successive failures of
yield_to we assume we are in potential undercommit case and abort
from PLE handler.
The assumption is backed by low probability of wrong decision
for
From: Peter Zijlstra
In case of undercomitted scenarios, especially in large guests
yield_to overhead is significantly high. when run queue length of
source and target is one, take an opportunity to bail out and return
-ESRCH. This return condition can be further exploited to quickly come
out of
In some special scenarios like #vcpu <= #pcpu, PLE handler may
prove very costly, because there is no need to iterate over vcpus
and do unsuccessful yield_to burning CPU.
The first patch optimizes all the yield_to by bailing out when there
is no need to continue in yield_to (i.e., when there is
https://bugzilla.kernel.org/show_bug.cgi?id=50921
Alan changed:
What|Removed |Added
CC||a...@lxorguk.ukuu.org.uk
--- Comment #12 from
On Sat, Nov 24, 2012 at 06:40:39PM +0200, Shlomi Tsadok wrote:
> I'm looking for a way to configure the guest networking(including IP)
> dynamically, using a custom script, right after VM creation.
>
> Is there a similar feature in KVM/Libvirt as the Invoke-VMScript in of
> VMware's PowerCLI?
> It
Hi Marcelo,
(2012/11/24 7:46), Marcelo Tosatti wrote:
On Thu, Nov 22, 2012 at 02:21:20PM +0900, Yoshihiro YUNOMAE wrote:
Hi Marcelo,
(2012/11/21 7:51), Marcelo Tosatti wrote:
On Tue, Nov 20, 2012 at 07:36:33PM +0900, Yoshihiro YUNOMAE wrote:
Hi Marcelo,
Sorry for the late reply.
(2012/11/1
On Fri, Nov 23, 2012 at 10:34:16AM -0800, Vincent Li wrote:
> On Thu, Nov 22, 2012 at 11:29 PM, Stefan Hajnoczi wrote:
> > On Wed, Nov 21, 2012 at 03:36:50PM -0800, Vincent Li wrote:
> >> We have users running on redhat based distro (Kernel
> >> 2.6.32-131.21.1.el6.x86_64 ) with kvm, when customer
On Fri, Nov 23, 2012 at 08:24:32PM +0100, Nikola Ciprich wrote:
> > Please also post the exact package version you are using - the line
> > numbers change between releases and depend on which patches have been
> > applied to the source tree. The distro exact package version allows me
> > to downlo
On Mon, Nov 26, 2012 at 03:51:04AM +, Zhang, Yang Z wrote:
> Gleb Natapov wrote on 2012-11-25:
> > On Wed, Nov 21, 2012 at 04:09:39PM +0800, Yang Zhang wrote:
> >> Posted Interrupt allows vAPICV interrupts to inject into guest directly
> >> without any vmexit.
> >>
> >> - When delivering a int
Hi
Please send in any agenda topics you are interested in.
Later, Juan.
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On Mon, Nov 26, 2012 at 05:44:29AM +, Zhang, Yang Z wrote:
> Avi Kivity wrote on 2012-11-25:
> > On 11/25/2012 03:03 PM, Gleb Natapov wrote:
> >> On Sun, Nov 25, 2012 at 02:55:26PM +0200, Avi Kivity wrote:
> >>> On 11/22/2012 05:22 PM, Gleb Natapov wrote:
> On Wed, Nov 21, 2012 at 04:09:38
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