Re: How filesystems matter with PostgreSQL

Поиск
Список
Период
Сортировка
От Tom Lane
Тема Re: How filesystems matter with PostgreSQL
Дата
Msg-id 2503.1275661530@sss.pgh.pa.us
обсуждение исходный текст
Ответ на Re: How filesystems matter with PostgreSQL  (Andres Freund <andres@anarazel.de>)
Ответы Re: How filesystems matter with PostgreSQL  (Andres Freund <andres@anarazel.de>)
Список pgsql-performance
Andres Freund <andres@anarazel.de> writes:
> On Friday 04 June 2010 14:17:35 Jon Schewe wrote:
>> XFS (logbufs=8): ~4 hours to finish
>> ext4: ~1 hour 50 minutes to finish
>> ext3: 15 minutes to finish
>> ext3 on LVM: 15 minutes to finish

> My guess is that some of the difference comes from barrier differences. ext4
> uses barriers by default, ext3 does not.

Or, to put it more clearly: the reason ext3 is fast is that it's unsafe.

            regards, tom lane

В списке pgsql-performance по дате отправления:

Предыдущее
От: "Kevin Grittner"
Дата:
Сообщение: Re: Performance tuning for postgres
Следующее
От: Andres Freund
Дата:
Сообщение: Re: How filesystems matter with PostgreSQL