Re: sysbench throughput degradation in 4.13+

From: Christian Borntraeger
Date: Tue Oct 10 2017 - 13:41:01 EST




On 10/10/2017 07:26 PM, Ingo Molnar wrote:
>
> * Peter Zijlstra <peterz@xxxxxxxxxxxxx> wrote:
>
>> On Tue, Oct 10, 2017 at 03:51:37PM +0100, Matt Fleming wrote:
>>> On Fri, 06 Oct, at 11:36:23AM, Matt Fleming wrote:
>>>>
>>>> It's a similar story for hackbench-threads-{pipes,sockets}, i.e. pipes
>>>> regress but performance is restored for sockets.
>>>>
>>>> Of course, like a dope, I forgot to re-run netperf with your WA_WEIGHT
>>>> patch. So I've queued that up now and it should be done by tomorrow.
>>>
>>> Yeah, netperf results look fine for either your NO_WA_WEIGHT or
>>> WA_WEIGHT patch.
>>>
>>> Any ETA on when this is going to tip?
>>
>> Just hit a few hours ago :-)
>
> I admit that time machines are really handy!
>
> Thanks,

Are we going to schedule this for 4.13 stable as well?