Re: some longer, larger pgbench tests with various performance-related patches

From: Nathan Boley <npboley(at)gmail(dot)com>
To: Robert Haas <robertmhaas(at)gmail(dot)com>
Cc: Jeff Janes <jeff(dot)janes(at)gmail(dot)com>, pgsql-hackers(at)postgresql(dot)org
Subject: Re: some longer, larger pgbench tests with various performance-related patches
Date: 2012-01-25 20:53:39
Message-ID: CAHetpQTf_i=i5kiWOquAL7N0Ui3FAmiizo0=EfwzFfygz8t3bw@mail.gmail.com
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> I actually don't know much about the I/O subsystem, but, no, WAL is
> not separated from data.  I believe $PGDATA is on a SAN, but I don't
> know anything about its characteristics.

The computer is here:
http://www.supermicro.nl/Aplus/system/2U/2042/AS-2042G-6RF.cfm

$PGDATA is on a 5 disk SATA software raid 5.

Is there anything else that would be useful to know? ( Sorry, this
isn't a subject that I'm very familiar with )

-Nathan

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