Re: dbt-2 tuning results with postgresql-8.3.5

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От Gregory Stark
Тема Re: dbt-2 tuning results with postgresql-8.3.5
Дата
Msg-id 878wq8v6o8.fsf@oxford.xeocode.com
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Ответ на Re: dbt-2 tuning results with postgresql-8.3.5  ("Mark Wong" <markwkm@gmail.com>)
Список pgsql-performance
"Mark Wong" <markwkm@gmail.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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