Re: Maximum reasonable free space map
| От | Grzegorz Jaśkiewicz |
|---|---|
| Тема | Re: Maximum reasonable free space map |
| Дата | |
| Msg-id | 2f4958ff0812161852r2efb3dd6n8119b5c237769e23@mail.gmail.com обсуждение исходный текст |
| Ответ на | Re: Maximum reasonable free space map (Phillip Berry <pberry@stellaconcepts.com>) |
| Список | pgsql-general |
On Wed, Dec 17, 2008 at 2:29 AM, Phillip Berry <pberry@stellaconcepts.com> wrote: > > The data in nearly every table is constantly changing due to a high volume of new data constantly > coming in, processing on the existing data and heavy reporting being done all at once all day and > night. > > So I guess my question is, is there a point where you start to see diminishing returns or even > negative returns by setting the fsm too high? I personally didn't experience anything like that. If the data is updated, but not deleted mostly - you should do something to utilize HOT (if using 8.3). Otherwise, you want FSM to be big enough - so that more and more deleted records could get reused without need for so often vacuum. -- GJ
В списке pgsql-general по дате отправления: