Re: Long Running Commits - Not Checkpoints

Поиск
Список
Период
Сортировка
От Brad Nicholson
Тема Re: Long Running Commits - Not Checkpoints
Дата
Msg-id 1189700385.8624.32.camel@bnicholson-desktop
обсуждение исходный текст
Ответ на Re: Long Running Commits - Not Checkpoints  (Greg Smith <gsmith@gregsmith.com>)
Ответы Re: Long Running Commits - Not Checkpoints  (Brad Nicholson <bnichols@ca.afilias.info>)
Re: Long Running Commits - Not Checkpoints  (Greg Smith <gsmith@gregsmith.com>)
Список pgsql-performance
On Thu, 2007-09-13 at 12:12 -0400, Greg Smith wrote:
> On Thu, 13 Sep 2007, Brad Nicholson wrote:

> I'd be curious to see how you've got your background writer configured to
> see if it matches situations like this I've seen in the past.  The
> parameters controlling the all scan are the ones you'd might consider
> turning down, definately the percentage and possibly the maxpages as well.


bgwriter_delay = 50                     # 10-10000 milliseconds between
rounds
bgwriter_lru_percent = 20.0             # 0-100% of LRU buffers
scanned/round
bgwriter_lru_maxpages = 300             # 0-1000 buffers max
written/round
bgwriter_all_percent = 20               # 0-100% of all buffers
scanned/round
bgwriter_all_maxpages = 600             # 0-1000 buffers max
written/round


--
Brad Nicholson  416-673-4106
Database Administrator, Afilias Canada Corp.


В списке pgsql-performance по дате отправления:

Предыдущее
От: Greg Smith
Дата:
Сообщение: Re: Long Running Commits - Not Checkpoints
Следующее
От: "Scott Marlowe"
Дата:
Сообщение: Re: [Again] Postgres performance problem