Re: Performance on 8CPU's and 32GB of RAM

Поиск
Список
Период
Сортировка
От Alvaro Herrera
Тема Re: Performance on 8CPU's and 32GB of RAM
Дата
Msg-id 20070905160347.GG6102@alvh.no-ip.org
обсуждение исходный текст
Ответ на Re: Performance on 8CPU's and 32GB of RAM  ("Carlo Stonebanks" <stonec.register@sympatico.ca>)
Список pgsql-performance
Carlo Stonebanks wrote:

> >> It sounds like you will need a huge lot of vacuuming effort to keep up.
> Maybe you should lower autovac scale factors so that your tables are
> visited more frequently.  A vacuum_delay of 40 sounds like too much
> though.
> <<
>
> Does autovacuum not impede performance while it is vacuuming a table?

It causes I/O.  Not sure what else you have in mind.  vacuum_delay
throttles the I/O usage, at the expense of longer vacuum times.

--
Alvaro Herrera                                http://www.CommandPrompt.com/
PostgreSQL Replication, Consulting, Custom Development, 24x7 support

В списке pgsql-performance по дате отправления:

Предыдущее
От: "Carlo Stonebanks"
Дата:
Сообщение: Re: Performance on 8CPU's and 32GB of RAM
Следующее
От: "Scott Marlowe"
Дата:
Сообщение: Re: Performance on 8CPU's and 32GB of RAM