Re: Prepare enabled pgbench

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От Tatsuo Ishii
Тема Re: Prepare enabled pgbench
Дата
Msg-id 20021113.113235.48534472.t-ishii@sra.co.jp
обсуждение исходный текст
Ответ на Re: Prepare enabled pgbench  (Bruce Momjian <pgman@candle.pha.pa.us>)
Ответы Re: Prepare enabled pgbench  (Bruce Momjian <pgman@candle.pha.pa.us>)
Список pgsql-hackers
> > But one of the purposes of pgbench is examining performance on
> > different environments, doesn't it? I'm afraid hard coded
> > PREPARE/EXECUTE makes it harder.
> 
> I was just thinking that pgbench is for measuring code changes, not for
> testing changes _in_ pgbench.  Once we know the performance difference
> for PERFORM, would we still keep the code in pgbench?  Maybe to test
> later, I guess.

My concern is PREPARE/EXECUTE may NOT always improve the
performance. I guess we have very few data to judge PREPARE/EXECUTE is
good or not. Moreover PREPARE/EXECUTE might be improved in the
future. If that happens, keeping that switch would help examining the
effect, no?
--
Tatsuo Ishii


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