linux-kernel - Re: Significant performance difference for postgres w/o sched

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Date:	Thu, 09 Jul 2015 12:35:51 +0200
From:	Mike Galbraith <efault@....de>
To:	Andres Freund <andres@...razel.de>
Cc:	linux-kernel@...r.kernel.org, Ingo Molnar <mingo@...hat.com>,
	Peter Zijlstra <peterz@...radead.org>
Subject: Re: Significant performance difference for postgres w/o
 sched_autogroup

On Thu, 2015-07-09 at 11:28 +0200, Andres Freund wrote:

> That'd make some sense if there were other stuff going on - but here the
> same total budget in both cases leads to a 40% difference in throughput:

When I suspect that what I'm hearing is horse pookey, I instrument the
source and ask my silicon horse pookey detector :)

	-Mike

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