| From: | Sailesh Krishnamurthy <sailesh(at)cs(dot)berkeley(dot)edu> |
|---|---|
| To: | Jordan Henderson <jordan_henders(at)yahoo(dot)com> |
| Cc: | Doug McNaught <doug(at)mcnaught(dot)org>, Christopher Kings-Lynne <chriskl(at)familyhealth(dot)com(dot)au>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: O_DIRECT in freebsd |
| Date: | 2003-10-31 00:59:12 |
| Message-ID: | bxy1xsuxlwf.fsf@datafix.cs.berkeley.edu |
| Views: | Raw Message | Whole Thread | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-hackers |
>>>>> "Jordan" == Jordan Henderson <jordan_henders(at)yahoo(dot)com> writes:
Jordan> significantly better results. I would not say it requires
Jordan> considerable tuning, but an understanding of data, storage
Jordan> and access patterns. Additionally, these features did not
Jordan> cause our group considerable administrative overhead.
I won't dispute the specifics. I have only worked on the DB2 engine -
never written an app for it nor administered it. You're right - the
bottomline is that you can get a significant performance advantage
provided you care enough to understand what's going on.
Anyway, I merely responded to provide a data point. Will PostgreSQL
users/administrators care for additional knobs or is there a
preference for "keep it simple, stupid" ?
--
Pip-pip
Sailesh
http://www.cs.berkeley.edu/~sailesh
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