Re: SSI bug?

Поиск
Список
Период
Сортировка
От Dan Ports
Тема Re: SSI bug?
Дата
Msg-id 20110331181216.GF81592@csail.mit.edu
обсуждение исходный текст
Ответ на Re: SSI bug?  ("Kevin Grittner" <Kevin.Grittner@wicourts.gov>)
Ответы Re: SSI bug?  ("Kevin Grittner" <Kevin.Grittner@wicourts.gov>)
Список pgsql-hackers
On Thu, Mar 31, 2011 at 11:06:30AM -0500, Kevin Grittner wrote:
> The only thing I've been on the fence about is whether it
> makes more sense to allocate it all up front or to continue to allow
> incremental allocation but set a hard limit on the number of entries
> allocated for each shared memory HTAB.  Is there a performance-
> related reason to choose one path or the other?

Seems like it would be marginally better to allocate it up front -- then
you don't have the cost of having to split buckets later as it grows.

Dan

-- 
Dan R. K. Ports              MIT CSAIL                http://drkp.net/


В списке pgsql-hackers по дате отправления:

Предыдущее
От: Brendan Jurd
Дата:
Сообщение: Re: [GENERAL] Date conversion using day of week
Следующее
От: Steve Crawford
Дата:
Сообщение: Re: [GENERAL] Date conversion using day of week