Re: Filesystem and PG configuration

On Fri, 4 Jun 2010 11:25:55 -0400
RBN <rbn.ggl@gmail.com> wrote:

> Can someone suggest some appropriate initial configuration
> parameters and shared memory settings for the following hardware?
>
> I'm running Debian on a Dell with 4x6 core CPU and 128GB memory and
> writing to  a coraid with 9 x 32GB SSDs RAID 10 using jfs with 8
> drives active and 1 as spare.
>
> I'm considering changing to xfs.  I'm not sure what block size to
> use for the file system, is 8192 appropriate?  The OS page size is
> 4096.
>
> The database is both write and read intensive, with about 750MB of
> new data added per week and old deleted every six months to one
> year.

A good start:

Tuning: http://www.westnet.com/~gsmith/content/postgresql/pgbench-scaling.htm
Benchmark: http://edoceo.com/liber/db-postgresql-benchmark

Here's my benchmark on `m1.medium` instance of Amazon EC2:
    http://gx.viettug.org/zen/kyanh/jobs/pgbench0.jpg.html

Good luck,

--
Anh Ky Huynh