| From: | Josh Berkus <josh(at)agliodbs(dot)com> |
|---|---|
| To: | Pavel Stehule <pavel(dot)stehule(at)gmail(dot)com> |
| Cc: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: 8.2 is 30% better in pgbench than 8.3 |
| Date: | 2007-07-22 15:53:14 |
| Message-ID: | 46A37D6A.5070103@agliodbs.com |
| Views: | Raw Message | Whole Thread | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-hackers |
Pavel Stehule wrote:
> Hello,
>
> I checked my tests again I have different results. Now I tested
> PostgreSQL on dedicated server. Now 8.3 is about 20% faster. I didn't
> see strong impression of autovacuum. All numbers are approximate
> only. I did pgbench 3x for folowing configuration: (autovacuum on,
> autovacuum off, statistics off) and for -tntransaction (100, 1000,
> 4000)
In other news, 8.3 with current HOT is 13% faster than 8.2 at TPCE in
the first 1/2 hour. Performance does not fall over 5 hours of test run,
and most of the main tables never have autovacuum triggered at all.
Unfortnately, we don't yet have a 5-hour 8.2 run to compare
last-half-hour performance.
--Josh
| From | Date | Subject | |
|---|---|---|---|
| Next Message | Florian G. Pflug | 2007-07-22 15:54:13 | Full page images in WAL & Cache Invalidation |
| Previous Message | Pavel Stehule | 2007-07-22 15:27:49 | Re: 8.2 is 30% better in pgbench than 8.3 |