Re: FreeBSD upgrade causes performance degredation

From: GB Clark II <postgres(at)vsservices(dot)com>
To: "Peter Schmidt" <peterjs(at)home(dot)com>, pgsql-admin(at)postgresql(dot)org
Subject: Re: FreeBSD upgrade causes performance degredation
Date: 2001-11-03 00:53:37
Message-ID: 0111021853371M.82549@prime.vsservices.com
Views: Raw Message | Whole Thread | Download mbox | Resend email
Thread:
Lists: pgsql-admin

On Monday 29 October 2001 09:46, Peter Schmidt wrote:
> FreeBSD 4.1 vs FreeBSD 4.4 on X86
> Postrgesql 7.03
>
> We are experiencing a siginficant drop in performance in some PostgreSQL
> database operations after upgrading FreeBSD 4.1 to FreeBSD 4.4. Database
> connections appear to be twice as slow while calling some of our own
> functions can take 10x longer. Does anyone have any ideas why this is
> occurring?
>
--SNIP--

What type of drives are running? ATA or SCSI? There have been changes to
both systems since 4.1.

Also, try enabling noatime in fstab for the mount and do a tunefs -n enable
/dev/disk_device to enable softupdates.

GB

--
GB Clark II | Roaming FreeBSD Admin
gclarkii(at)VSServices(dot)COM | General Geek
CTHULU for President - Why choose the lesser of two evils?

In response to

Browse pgsql-admin by date

  From Date Subject
Next Message pgsql-admin 2001-11-03 12:50:43 Re: continuing with rserv replication
Previous Message Michael Baker 2001-11-01 19:37:34 problems with starting postpostmaster