Re: odd variances in count(*) times - Mailing list pgsql-performance

From Merlin Moncure
Subject Re: odd variances in count(*) times
Date
Msg-id b42b73150610092330m22dc6a6x7fefcb65bbbdfc51@mail.gmail.com
Whole thread Raw
In response to Re: odd variances in count(*) times  ("Jim C. Nasby" <jim@nasby.net>)
List pgsql-performance
On 10/10/06, Jim C. Nasby <jim@nasby.net> wrote:
> > >Try w/o the explain analyze.  It adds quite a bit of overhead and that
> > >might be inconsistant between the systems (mainly it may have to do with
> > >the gettimeofday() calls being implemented differently between Windows
> > >and Linux..).
> >
> > that was it. amd system now drop to .3 seconds, windows .6. (doing
> > time foo > psql -c bar > file). thanks...
>
> You can also turn timing on in psql.
>
> And FWIW, RAID5 generally isn't a good idea for databases.

thats just our development box here at the office.  production system
runs on something much more extravagent :).

melrin

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