| From: | "Jim C(dot) Nasby" <jim(at)nasby(dot)net> |
|---|---|
| To: | Mark Lonsdale <mark(dot)lonsdale(at)wysdm(dot)com> |
| Cc: | "Joshua D(dot) Drake" <jd(at)commandprompt(dot)com>, Richard Huxton <dev(at)archonet(dot)com>, pgsql-performance(at)postgresql(dot)org |
| Subject: | Re: Configuration Issue ? |
| Date: | 2006-10-26 19:08:38 |
| Message-ID: | 20061026190837.GC26892@nasby.net |
| Views: | Raw Message | Whole Thread | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-performance |
On Wed, Oct 25, 2006 at 05:31:29PM -0400, Mark Lonsdale wrote:
> Set my sort_mem to 8192
You really need to look at what your workload is before trying to tweak
sort_mem. With 8G of memory, sort_mem=400000 (~400MB) with only 10
active connections might be a good setting. It's usually better to get a
sort to fit into memory than spill to disk. Since you never mentioned
what kind of workload you have or how many active connections there are,
it's pretty much impossible to make a recommendation on that setting.
--
Jim Nasby jim(at)nasby(dot)net
EnterpriseDB http://enterprisedb.com 512.569.9461 (cell)
| From | Date | Subject | |
|---|---|---|---|
| Next Message | Jim C. Nasby | 2006-10-26 19:17:29 | Re: VACUUMs take twice as long across all nodes |
| Previous Message | Joshua D. Drake | 2006-10-26 18:32:02 | Re: OT: TCL vs Perl Re: commit so slow program looks frozen |