Re: [HACKERS] Performance while loading data and indexing

Поиск
Список
Период
Сортировка
От Bruce Momjian
Тема Re: [HACKERS] Performance while loading data and indexing
Дата
Msg-id 200209262147.g8QLlhU10159@candle.pha.pa.us
обсуждение исходный текст
Ответы Re: [HACKERS] Performance while loading data and indexing  (Rod Taylor <rbt@rbt.ca>)
Список pgsql-general
Rod Taylor wrote:
> > Yes, before UFS had soft updates, the synchronous nature of UFS made it
> > slower than ext2, but now with soft updates, that performance difference
> > is gone so you have two files systems, ext2 and ufs, similar peformance,
> > but one is crash-safe and the other is not.
>
> Note entirely true.  ufs is both crash-safe and quick-rebootable.  You
> do need to fsck at some point, but not prior to mounting it.  Any
> corrupt blocks are empty, and are easy to avoid.

I am assuming you need to mount the drive as part of the reboot.  Of
course you can boot fast with any file system if you don't have to mount
it.  :-)

--
  Bruce Momjian                        |  http://candle.pha.pa.us
  pgman@candle.pha.pa.us               |  (610) 359-1001
  +  If your life is a hard drive,     |  13 Roberts Road
  +  Christ can be your backup.        |  Newtown Square, Pennsylvania 19073

В списке pgsql-general по дате отправления:

Предыдущее
От: Neil Conway
Дата:
Сообщение: Re: unlock / drop table
Следующее
От: Joe Conway
Дата:
Сообщение: Re: dblink