Re: Performance advice
От | Paul Thomas |
---|---|
Тема | Re: Performance advice |
Дата | |
Msg-id | 20030625125221.A11482@bacon обсуждение исходный текст |
Ответ на | Re: Performance advice ("Michael Mattox" <michael.mattox@verideon.com>) |
Список | pgsql-performance |
On 25/06/2003 10:47 Michael Mattox wrote: > I'm using Java Data Objects (JDO) which is an O/R mapper. It generated > the > schema from my object model by default it used a table for a sequence. I > just got finished configuring it to use a real postgres sequence. With > the > way they have it designed, it opens and closes a connection each time it > retrieves a sequence. Would I get a performance increase if I modify > their > code to retrieve multiple sequence numbers in one connection? For > example I > could have it grab 50 at a time, which would replace 50 connections with > 1. For best performance, you really should consider using a connection pool as it removes the overhead of creating and closing connections. -- Paul Thomas +------------------------------+---------------------------------------------+ | Thomas Micro Systems Limited | Software Solutions for the Smaller Business | | Computer Consultants | http://www.thomas-micro-systems-ltd.co.uk | +------------------------------+---------------------------------------------+
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