Re: [seanc@FreeBSD.org: Re: Performance tests I did with

Поиск
Список
Период
Сортировка
От Curt Sampson
Тема Re: [seanc@FreeBSD.org: Re: Performance tests I did with
Дата
Msg-id Pine.NEB.4.51.0308291145270.1359@angelic-vtfw.cvpn.cynic.net
обсуждение исходный текст
Ответ на [seanc@FreeBSD.org: Re: Performance tests I did with FreeBSD, Linux and PostgreSQL]  (Sean Chittenden <sean@chittenden.org>)
Список pgsql-hackers
On Wed, 27 Aug 2003, Sean Chittenden wrote:

> FreeBSD uses 16K blocks for its FS...

Actually, FreeBSD can use 8K blocks as well. The reason for using 16K
blocks is not speeed, but to reduce filesystem overhead and, more
importantly, to allow larger cylinder groups. But for a database with
a lot of random access of small records, your caching will probably
do better if you use 8K filesystem blocks; you're like to be able to
effectively cache more data.

cjs
--
Curt Sampson  <cjs@cynic.net>   +81 90 7737 2974   http://www.NetBSD.org
    Don't you know, in this new Dark Age, we're all light.  --XTC

В списке pgsql-hackers по дате отправления:

Предыдущее
От: Neil Conway
Дата:
Сообщение: Re: Bumping block size to 16K on FreeBSD...
Следующее
От: "Marc G. Fournier"
Дата:
Сообщение: Re: Bumping block size to 16K on FreeBSD...