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From: Matt Fleming <matt@codeblueprint.co.uk>
To: Peter Zijlstra <peterz@infradead.org>
Cc: linux-kernel@vger.kernel.org, "Suthikulpanit,
	Suravee" <Suravee.Suthikulpanit@amd.com>,
	Mel Gorman <mgorman@techsingularity.net>,
	"Lendacky, Thomas" <Thomas.Lendacky@amd.com>,
	Borislav Petkov <bp@alien8.de>
Subject: Re: [PATCH] sched/topology: Improve load balancing on AMD EPYC
Date: Mon, 10 Jun 2019 22:26:20 +0100	[thread overview]
Message-ID: <20190610212620.GA4772@codeblueprint.co.uk> (raw)
In-Reply-To: <20190605180035.GA3402@hirez.programming.kicks-ass.net>

On Wed, 05 Jun, at 08:00:35PM, Peter Zijlstra wrote:
> 
> And then we had two magic values :/
> 
> Should we not 'fix' RECLAIM_DISTANCE for EPYC or something? Because
> surely, if we want to load-balance agressively over 30, then so too
> should we do node_reclaim() I'm thikning.

Yeah we can fix it just for EPYC, Mel suggested that approach originally.

Suravee, Tom, what's the best way to detect these EPYC machines that need to
override RECLAIM_DISTANCE?

  reply	other threads:[~2019-06-10 21:26 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-06-05 15:59 Matt Fleming
2019-06-05 18:00 ` Peter Zijlstra
2019-06-10 21:26   ` Matt Fleming [this message]
2019-06-11 17:22     ` Lendacky, Thomas
2019-06-18 10:43       ` Matt Fleming
2019-06-18 12:33         ` Peter Zijlstra
2019-06-19 21:34           ` Matt Fleming
2019-06-24 14:24             ` Mel Gorman
2019-06-26 21:18               ` Suthikulpanit, Suravee
2019-06-28 15:15                 ` Matt Fleming
2019-07-22 14:11                   ` Suthikulpanit, Suravee

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