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Message-ID: <1348732552.7059.189.camel@marge.simpson.net>
Date: Thu, 27 Sep 2012 09:55:52 +0200
From: Mike Galbraith <efault@....de>
To: david@...g.hm
Cc: Borislav Petkov <bp@...en8.de>,
Linus Torvalds <torvalds@...ux-foundation.org>,
Peter Zijlstra <a.p.zijlstra@...llo.nl>,
Mel Gorman <mgorman@...e.de>,
Nikolay Ulyanitsky <lystor@...il.com>,
linux-kernel@...r.kernel.org,
Andreas Herrmann <andreas.herrmann3@....com>,
Andrew Morton <akpm@...ux-foundation.org>,
Thomas Gleixner <tglx@...utronix.de>,
Ingo Molnar <mingo@...nel.org>,
Suresh Siddha <suresh.b.siddha@...el.com>
Subject: Re: 20% performance drop on PostgreSQL 9.2 from kernel 3.5.3 to
3.6-rc5 on AMD chipsets - bisected
On Thu, 2012-09-27 at 00:17 -0700, david@...g.hm wrote:
> over the long term, the work lost due to not moving optimally right away
> is probably much less than the work lost due to trying to figure out the
> perfect thing to do.
Yeah, "Perfect is the enemy of good" definitely applies. Once you're
ramped, less is more.
-Mike
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