Re: Very long deletion time on a 200 GB database

Поиск
Список
Период
Сортировка
От Shaun Thomas
Тема Re: Very long deletion time on a 200 GB database
Дата
Msg-id 4F479FDE.1070509@peak6.com
обсуждение исходный текст
Ответ на Re: Very long deletion time on a 200 GB database  ("Reuven M. Lerner" <reuven@lerner.co.il>)
Ответы Re: Very long deletion time on a 200 GB database  ("Reuven M. Lerner" <reuven@lerner.co.il>)
Список pgsql-performance
On 02/24/2012 12:39 AM, Reuven M. Lerner wrote:

> - CPU is virtually idle when running the deletes, using about 1% of
> CPU

I think you found your problem.

See if you can get the Windows admins to give you some info on how busy
the disks are (percent utilization, IOPS, something) the next time you
try this. Increasing your memory settings may help, but a 1% CPU usage
usually suggests it's waiting for disk blocks to be read before it can
actually do something.

--
Shaun Thomas
OptionsHouse | 141 W. Jackson Blvd. | Suite 500 | Chicago IL, 60604
312-444-8534
sthomas@peak6.com

______________________________________________

See http://www.peak6.com/email_disclaimer/ for terms and conditions related to this email

В списке pgsql-performance по дате отправления:

Предыдущее
От: Claudio Freire
Дата:
Сообщение: Re: Very long deletion time on a 200 GB database
Следующее
От: "Reuven M. Lerner"
Дата:
Сообщение: Re: Very long deletion time on a 200 GB database