| From: | "Joshua D(dot) Drake" <jd(at)commandprompt(dot)com> |
|---|---|
| To: | mischa(at)ca(dot)sophos(dot)com |
| Cc: | pgsql-performance(at)postgresql(dot)org |
| Subject: | Re: Solaris shared_buffers anomaly? |
| Date: | 2006-06-13 22:55:32 |
| Message-ID: | 448F4264.5030109@commandprompt.com |
| Views: | Raw Message | Whole Thread | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-performance |
> Initially shared_buffers were set to 1000 (8MB).
> Then, we moved all apps but the database server off the box.
>
> Raised shared_buffers to 2000 (16MB).
> Modest improvement in some frequent repeated queries.
>
> Raised shared_buffers to 16000 (128MB).
> DB server dropped to a CRAWL.
Versions below 8.1 normally don't do well with high shared_buffers. 8.1
would do much better. If you dropped that to more like 6k you would
probably continue to see increase over 2k.
Sincerely,
Joshua D. Drake
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