From: Peter Zijlstra <peterz@infradead.org>
To: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Martin Schwidefsky <schwidefsky@de.ibm.com>,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH 2/2] s390/topology: add drawer scheduling domain level
Date: Mon, 13 Jun 2016 13:33:01 +0200 [thread overview]
Message-ID: <20160613113301.GX30909@twins.programming.kicks-ass.net> (raw)
In-Reply-To: <20160613112553.GC3808@osiris>
On Mon, Jun 13, 2016 at 01:25:53PM +0200, Heiko Carstens wrote:
> On Mon, Jun 13, 2016 at 01:06:21PM +0200, Peter Zijlstra wrote:
> > On Wed, Jun 08, 2016 at 11:09:16AM +0200, Heiko Carstens wrote:
> > > The z13 machine added a fourth level to the cpu topology
> > > information. The new top level is called drawer.
> > >
> > > A drawer contains two books, which used to be the top level.
> > >
> > > Adding this additional scheduling domain did show performance
> > > improvements for some workloads of up to 8%, while there don't
> > > seem to be any workloads impacted in a negative way.
> >
> > Right; so no objection.
> >
> > Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
>
> May I add your ACK also to the sysfs patch?
Not really my area, nor something I've ever looked hard at, but the
patch seems to have the right shape, so sure ;-)
prev parent reply other threads:[~2016-06-13 11:33 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-06-08 9:09 [PATCH 0/2] s390: introduce drawer scheduling domain Heiko Carstens
2016-06-08 9:09 ` [PATCH 1/2] topology/sysfs: provide drawer id and siblings attributes Heiko Carstens
2016-06-08 9:09 ` [PATCH 2/2] s390/topology: add drawer scheduling domain level Heiko Carstens
2016-06-13 11:06 ` Peter Zijlstra
2016-06-13 11:22 ` Heiko Carstens
2016-06-13 13:06 ` Peter Zijlstra
2016-06-13 13:19 ` Martin Schwidefsky
2016-06-13 13:53 ` Peter Zijlstra
2016-06-13 14:37 ` Martin Schwidefsky
2016-06-13 11:25 ` Heiko Carstens
2016-06-13 11:33 ` Peter Zijlstra [this message]
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