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Date: Tue, 10 Oct 2017 17:16:15 +0200
From: Peter Zijlstra <peterz@...radead.org>
To: Matt Fleming <matt@...eblueprint.co.uk>
Cc: Rik van Riel <riel@...hat.com>,
Eric Farman <farman@...ux.vnet.ibm.com>,
????????? <jinpuwang@...il.com>,
LKML <linux-kernel@...r.kernel.org>,
Ingo Molnar <mingo@...hat.com>,
Christian Borntraeger <borntraeger@...ibm.com>,
"KVM-ML (kvm@...r.kernel.org)" <kvm@...r.kernel.org>,
vcaputo@...garu.com, Matthew Rosato <mjrosato@...ux.vnet.ibm.com>
Subject: Re: sysbench throughput degradation in 4.13+
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 :-)
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