Dario Faggioli writes:
> On Fri, 2017-02-17 at 19:44 +, Julien Grall wrote:
>> On 02/17/2017 06:40 PM, Dario Faggioli wrote:
>> > Does ARM
>> > have frequency scaling (I did remember something on xen-devel, but
>> > I am
>> > not sure whether it landed upstream)?
>>
>> I guess you mean the s
On Mon, 2017-02-20 at 11:04 +, George Dunlap wrote:
> On 18/02/17 00:41, Stefano Stabellini wrote:
> >
> > On Fri, 17 Feb 2017, Dario Faggioli wrote:
> > > cyclictest 1us cyclictest 1ms cyclictest
> > > 100ms
> > > (cycles) Credit1 Credit2 Credit1 Cred
> > >
On 18/02/17 00:41, Stefano Stabellini wrote:
> On Fri, 17 Feb 2017, Dario Faggioli wrote:
>> On Thu, 2017-02-09 at 16:54 -0800, Stefano Stabellini wrote:
>>> These are the results, in nanosec:
>>>
>>> AVG MIN MAX WARM MAX
>>>
>>> NODEBUG no WFI 18901
On Fri, 2017-02-17 at 19:44 +, Julien Grall wrote:
> On 02/17/2017 06:40 PM, Dario Faggioli wrote:
> > Does ARM
> > have frequency scaling (I did remember something on xen-devel, but
> > I am
> > not sure whether it landed upstream)?
>
> I guess you mean the series sent by globallogic ([1])? I
On Fri, 2017-02-17 at 16:02 -0800, Stefano Stabellini wrote:
> On Fri, 17 Feb 2017, Stefano Stabellini wrote:
> >
> > NODEBUG vwfi=idle credit2 fix cpumasks 40002370
> > 45003350
> > NODEBUG vwfi=idle credit1 fix cpumasks 32202180
> > 45004320
>
> Actuall
On Fri, 17 Feb 2017, Dario Faggioli wrote:
> On Thu, 2017-02-09 at 16:54 -0800, Stefano Stabellini wrote:
> > These are the results, in nanosec:
> >
> > AVG MIN MAX WARM MAX
> >
> > NODEBUG no WFI 1890 1800 3170 2070
> > NODEBUG WFI
On Fri, 17 Feb 2017, Stefano Stabellini wrote:
> On Fri, 17 Feb 2017, Julien Grall wrote:
> > Hi,
> >
> > On 02/17/2017 11:02 AM, Dario Faggioli wrote:
> > > Just very quickly...
> > >
> > > On Thu, 2017-02-16 at 15:07 -0800, Stefano Stabellini wrote:
> > > > (XEN) Active queues: 1
> > > > (XEN)
On Fri, 17 Feb 2017, Julien Grall wrote:
> Hi,
>
> On 02/17/2017 11:02 AM, Dario Faggioli wrote:
> > Just very quickly...
> >
> > On Thu, 2017-02-16 at 15:07 -0800, Stefano Stabellini wrote:
> > > (XEN) Active queues: 1
> > > (XEN) default-weight = 256
> > > (XEN) Runqueue 0:
> > > (XEN)
On Fri, 17 Feb 2017, Julien Grall wrote:
> Hi Dario,
>
> On 02/17/2017 06:40 PM, Dario Faggioli wrote:
> > On Thu, 2017-02-09 at 16:54 -0800, Stefano Stabellini wrote:
> > Actually, TSC on this box should be stable and invariant, so I guess I
> > can try with the default governor. Will do that on
Hi Dario,
On 02/17/2017 06:40 PM, Dario Faggioli wrote:
On Thu, 2017-02-09 at 16:54 -0800, Stefano Stabellini wrote:
Actually, TSC on this box should be stable and invariant, so I guess I
can try with the default governor. Will do that on Monday. Does ARM
have frequency scaling (I did remember s
Hi,
On 02/17/2017 11:02 AM, Dario Faggioli wrote:
Just very quickly...
On Thu, 2017-02-16 at 15:07 -0800, Stefano Stabellini wrote:
(XEN) Active queues: 1
(XEN) default-weight = 256
(XEN) Runqueue 0:
(XEN) ncpus = 4
(XEN) cpus = 0-3
(XEN) max_weight
On Thu, 2017-02-09 at 16:54 -0800, Stefano Stabellini wrote:
> These are the results, in nanosec:
>
> AVG MIN MAX WARM MAX
>
> NODEBUG no WFI 1890 1800 3170 2070
> NODEBUG WFI 4850 4810 7030 4980
> NODEBUG no WFI credit2
Just very quickly...
On Thu, 2017-02-16 at 15:07 -0800, Stefano Stabellini wrote:
> (XEN) Active queues: 1
> (XEN) default-weight = 256
> (XEN) Runqueue 0:
> (XEN) ncpus = 4
> (XEN) cpus = 0-3
> (XEN) max_weight = 256
> (XEN) instload = 1
On Thu, 16 Feb 2017, Stefano Stabellini wrote:
> > > > > AVG MIN MAX WARM MAX
> > > > >
> > > > > NODEBUG no WFI 1890 1800 3170 2070
> > > > > NODEBUG WFI 4850 4810 7030 4980
> > > > > NODEBUG no WFI credit2 2217 2090
On Thu, 16 Feb 2017, Dario Faggioli wrote:
> On Fri, 2017-02-10 at 10:32 -0800, Stefano Stabellini wrote:
> > On Fri, 10 Feb 2017, Dario Faggioli wrote:
> > > Right, interesting use case. I'm glad to see there's some interest
> > > in
> > > it, and am happy to help investigating, and trying to make
On Fri, 2017-02-10 at 10:32 -0800, Stefano Stabellini wrote:
> On Fri, 10 Feb 2017, Dario Faggioli wrote:
> > Right, interesting use case. I'm glad to see there's some interest
> > in
> > it, and am happy to help investigating, and trying to make things
> > better.
>
> Thank you!
>
Hey, FYI, I am
On Fri, 10 Feb 2017, Dario Faggioli wrote:
> On Thu, 2017-02-09 at 16:54 -0800, Stefano Stabellini wrote:
> > Hi all,
> >
> Hi,
>
> > I have run some IRQ latency measurements on Xen on ARM on a Xilinx
> > ZynqMP board (four Cortex A53 cores, GICv2).
> >
> > Dom0 has 1 vcpu pinned to cpu0, DomU h
On Thu, 2017-02-09 at 16:54 -0800, Stefano Stabellini wrote:
> Hi all,
>
Hi,
> I have run some IRQ latency measurements on Xen on ARM on a Xilinx
> ZynqMP board (four Cortex A53 cores, GICv2).
>
> Dom0 has 1 vcpu pinned to cpu0, DomU has 1 vcpu pinned to cpu2.
> Dom0 is Ubuntu. DomU is an ad-hoc
Hi all,
I have run some IRQ latency measurements on Xen on ARM on a Xilinx
ZynqMP board (four Cortex A53 cores, GICv2).
Dom0 has 1 vcpu pinned to cpu0, DomU has 1 vcpu pinned to cpu2.
Dom0 is Ubuntu. DomU is an ad-hoc baremetal app to measure interrupt
latency: https://github.com/edgarigl/tbm
I
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