| From: | Greg Smith <gsmith(at)gregsmith(dot)com> |
|---|---|
| To: | alan bryan <alan(dot)bryan(at)gmail(dot)com> |
| Cc: | pgsql-performance(at)postgresql(dot)org |
| Subject: | Re: Performance tuning on FreeBSD |
| Date: | 2008-03-04 10:22:43 |
| Message-ID: | Pine.GSO.4.64.0803040519020.25098@westnet.com |
| Views: | Raw Message | Whole Thread | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-performance |
On Tue, 4 Mar 2008, alan bryan wrote:
> There seems to be something really wrong with disk performance. Here's
> the results from bonnie
So input speed is reasonable but write throughput is miserable--<10MB/s.
I'd suggest taking this to one of the FreeBSD lists; this doesn't look
like a PostgreSQL problem.
> This is on FreeBSD 7.0-Release. I tried ULE and 4BSD schedulers with
> no difference. Maybe I'll try FreeBSD 6.3 to see what that does?
The other thing you might consider is booting with a Linux live CD/DVD
(something like Ubuntu would work) and running bonnie++ from there to see
what you get. Help to sort out whether this ia a server problem or an OS
one.
--
* Greg Smith gsmith(at)gregsmith(dot)com http://www.gregsmith.com Baltimore, MD
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