Re: [Xen-devel] [PATCH 0/6] xen: sched: improve scalability of Credit1, and optimize a bit both Credit1 and Credit2

[Dario Faggioli <dario.faggioli@xxxxxxxxxx>]

On Thu, 2017-03-02 at 11:37 +0100, Dario Faggioli wrote:
> Hello,
> 
Hey, George,

About this series. I was re-looking at it, and I figured out that:

> Dario Faggioli (6):
>       xen: credit1: simplify csched_runq_steal() a little bit.
>       xen: credit: (micro) optimize csched_runq_steal().
>       xen: credit1: increase efficiency and scalability of load
> balancing.
>
Here in patch 3, overhead inside __runq_insert() and __runq_remove()
can be reduced.

>       xen: credit1: treat pCPUs more evenly during balancing.
>
And about patch 4, I like it, but I'm currently running more benchmarks
to make sure of its impact, and its cost-vs-benefit ratio.

I will send a v2 shortly, so, maybe, if you're in desperate look for
reviewing something from me, feel free to skip (or just quickly glance
at) this series. :-)

Regards,
Dario
-- 
<<This happens because I choose it to happen!>> (Raistlin Majere)
-----------------------------------------------------------------
Dario Faggioli, Ph.D, http://about.me/dario.faggioli
Senior Software Engineer, Citrix Systems R&D Ltd., Cambridge (UK)

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