| From: | Aaron Turner <synfinatic(at)gmail(dot)com> |
|---|---|
| To: | pgsql-performance(at)postgresql(dot)org |
| Cc: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, "Jim C(dot) Nasby" <jnasby(at)pervasive(dot)com>, "Matthew T(dot) O'Connor" <matthew(at)zeut(dot)net>, PFC <lists(at)peufeu(dot)com> |
| Subject: | Re: 10+hrs vs 15min because of just one index |
| Date: | 2006-02-14 23:14:03 |
| Message-ID: | 1ca1c1410602141514w2bcd1401p7c417241030c0778@mail.gmail.com |
| Views: | Raw Message | Whole Thread | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-performance |
Well just a little update:
1) Looks like I'm definately RAM constrained. Just placed an order
for another 4GB.
2) I ended up dropping the primary key too which helped with disk
thrashing a lot (average disk queue wait was between 500ms and 8500ms
before and 250-500ms after)
3) Playing with most of the settings in the postgresql.conf actually
dropped performance significantly. Looks like I'm starving the disk
cache.
4) I'm going to assume going to a bytea helped some (width is 54 vs
66) but nothing really measurable
Thanks everyone for your help!
--
Aaron Turner
http://synfin.net/
| From | Date | Subject | |
|---|---|---|---|
| Next Message | Tomeh, Husam | 2006-02-14 23:40:17 | Re: 0ut of Memory Error during Vacuum Analyze and |
| Previous Message | Adnan DURSUN | 2006-02-14 22:35:59 | Re: SQL Function Performance |