From: Josh Berkus <josh@agliodbs.com>
To: Tom Lane <tgl@sss.pgh.pa.us>
Cc: pgsql-performance@postgresql.org, Alvaro Herrera <alvherre@commandprompt.com>
Subject: Re: User concurrency thresholding: where do I look?
Date: Thu, 19 Jul 2007 21:38:39 -0700
Message-ID: <200707192138.39679.josh@agliodbs.com> (raw)
In-Reply-To: <15685.1184895926@sss.pgh.pa.us>
References: <200707190828.59088.josh@agliodbs.com>
<200707191819.13899.josh@agliodbs.com>
<15685.1184895926@sss.pgh.pa.us>
Tom,
> Well, if the load is a lot of short writing transactions then you'd
> expect the throughput to depend on how fast stuff can be pushed down to
> WAL. What have you got wal_buffers set to? Are you using a commit
> delay? What's the I/O system anyway (any BB write cache on the WAL
> disk?) and what wal sync method are you using?
You know, I think Jignesh needs to me on this list so I can stop relaying
questions on a workload I didn't design. Let me get him.
--
Josh Berkus
PostgreSQL @ Sun
San Francisco
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To: pgsql-performance@postgresql.org
Cc: josh@agliodbs.com, tgl@sss.pgh.pa.us, alvherre@commandprompt.com
Subject: Re: User concurrency thresholding: where do I look?
In-Reply-To: <200707192138.39679.josh@agliodbs.com>
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