Message-ID: <4CE44826.2070508@2ndquadrant.com>
Date: Wed, 17 Nov 2010 16:24:54 -0500
From: Greg Smith <greg@2ndquadrant.com>
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To: Scott Carey <scott@richrelevance.com>
CC: Marti Raudsepp <marti@juffo.org>,
	"pgsql-performance@postgresql.org" <pgsql-performance@postgresql.org>
Subject: Re: Defaulting wal_sync_method to fdatasync on Linux for
 9.1?
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	<201011010010.28724.andres@anarazel.de>
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Scott Carey wrote:
> Did you recompile your test on the RHEL6 system? 

On both systems I showed, I checked out a fresh copy of the PostgreSQL 
9.1 HEAD from the git repo, and compiled that on the server, to make 
sure I was pulling in the appropriate kernel headers.  I wasn't aware of 
exactly how the kernel sync stuff was refactored though, thanks for the 
concise update on that.  I can do similar tests on a RHEL5 system, but 
not on the same hardware.  Can only make my laptop boot so many 
operating systems at a time usefully.

-- 
Greg Smith   2ndQuadrant US    greg@2ndQuadrant.com   Baltimore, MD
PostgreSQL Training, Services and Support        www.2ndQuadrant.us
"PostgreSQL 9.0 High Performance": http://www.2ndQuadrant.com/books