From: Sergio Lopez <slp@sinrega.org>
To: Mike Galbraith <efault@gmx.de>, linux-kernel@vger.kernel.org
Cc: mingo@redhat.com, peterz@infradead.org
Subject: Re: [RFC PATCH] sched/fair: Optionally restrict SMT scheduling ("restrict_smt")
Date: Fri, 02 Feb 2018 16:14:01 +0100 [thread overview]
Message-ID: <1517584441.10356.21.camel@sinrega.org> (raw)
In-Reply-To: <1517495872.23787.20.camel@gmx.de>
On Thu, 2018-02-01 at 15:37 +0100, Mike Galbraith wrote:
> On Thu, 2018-02-01 at 13:37 +0100, Sergio Lopez wrote:
> > Compared against "isolcpus", "restrict_smt" presents the following
> > advantages:
> > - Doesn't require prior knowledge of the CPU topology, making it
> > more friendly to both end users and automation tools.
> > - Load balancing is still active for tasks pinned to multiple
> > secondary SMT threads.
>
> This says that everybody and everything in the box is way smarter
> than the admin.
If that's an argument in favor of manual pinning and isolation, I have
to disagree with you. That's an unnecessary burden put on the shoulders
of the admin.
Sergio.
next prev parent reply other threads:[~2018-02-02 15:14 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-02-01 12:37 Sergio Lopez
2018-02-01 14:37 ` Mike Galbraith
2018-02-02 15:14 ` Sergio Lopez [this message]
2018-02-02 17:18 ` Mike Galbraith
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