| From: | Gregory Stark <stark(at)enterprisedb(dot)com> |
|---|---|
| To: | "Mark Wong" <markwkm(at)gmail(dot)com> |
| Cc: | "pgsql-performance\(at)postgresql(dot)org" <pgsql-performance(at)postgresql(dot)org>, "Selena Deckelmann" <selenamarie(at)gmail(dot)com>, "Gabrielle Roth" <gorthx(at)gmail(dot)com> |
| Subject: | Re: dbt-2 tuning results with postgresql-8.3.5 |
| Date: | 2008-12-22 10:35:35 |
| Message-ID: | 878wq8v6o8.fsf@oxford.xeocode.com |
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| Thread: | |
| Lists: | pgsql-performance |
"Mark Wong" <markwkm(at)gmail(dot)com> writes:
>> I'm not sure how bad that is for the benchmarks. The only effect that comes to
>> mind is that it might exaggerate the effects of some i/o intensive operations
>> that under normal conditions might not cause any noticeable impact like wal
>> log file switches or even checkpoints.
>
> I'm not sure I'm following.
All I'm saying is that the performance characteristics won't be the same when
the service wait times are 1-10 seconds rather than the 20-30ms at which alarm
bells would start to ring on a real production system.
I'm not exactly sure what changes it might make though.
--
Gregory Stark
EnterpriseDB http://www.enterprisedb.com
Ask me about EnterpriseDB's RemoteDBA services!
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