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Subject: Re: Migration study, step 1: bulk write performance
From: Csaba Nagy <nagy@ecircle-ag.com>
To: "Jim C. Nasby" <jnasby@pervasive.com>
Cc: Mikael Carneholm <Mikael.Carneholm@WirelessCar.com>,
	postgres performance list <pgsql-performance@postgresql.org>
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> Did you try mounting ext3 whith data=writeback by chance? People have
> found that makes a big difference in performance.

I'm not sure, there's other people here doing the OS stuff - I'm pretty
much ignorant about what "data=writeback" could mean :-D

They knew however that for the data partitions no FS journaling is
needed, and for the WAL partition meta data journaling is enough, so I
guess they tuned ext3 for this.

Cheers,
Csaba.