Re: Is there a reason _not_ to vacuum continuously?

Поиск
Список
Период
Сортировка
От scott.marlowe
Тема Re: Is there a reason _not_ to vacuum continuously?
Дата
Msg-id Pine.LNX.4.33.0309171353490.8026-100000@css120.ihs.com
обсуждение исходный текст
Ответ на Is there a reason _not_ to vacuum continuously?  ("Matt Clark" <matt@ymogen.net>)
Ответы Re: Is there a reason _not_ to vacuum continuously?  ("Matt Clark" <matt@ymogen.net>)
Список pgsql-performance
On Wed, 17 Sep 2003, Matt Clark wrote:

> *** THE QUESTION(S) ***
> Is there any reason for me not to run continuous sequential vacuum analyzes?
> At least for the 6 tables that see a lot of updates?
> I hear 10% of tuples updated as a good time to vac-an, but does my typical
> count of 3 indexes per table affect that?

Generally, the only time continuous vacuuming is a bad thing is when you
are I/O bound.  If you are CPU bound, then continuous vacuuming is usually
acceptable.


В списке pgsql-performance по дате отправления:

Предыдущее
От: "Matt Clark"
Дата:
Сообщение: Is there a reason _not_ to vacuum continuously?
Следующее
От: Josh Berkus
Дата:
Сообщение: Re: Is there a reason _not_ to vacuum continuously?