Re: Create and drop temp table in 8.3.4
От | Joshua D. Drake |
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Тема | Re: Create and drop temp table in 8.3.4 |
Дата | |
Msg-id | 1225999071.1204.14.camel@jd-laptop.pragmaticzealot.org обсуждение исходный текст |
Ответ на | Re: Create and drop temp table in 8.3.4 ("Kevin Grittner" <Kevin.Grittner@wicourts.gov>) |
Ответы |
Re: Create and drop temp table in 8.3.4
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Список | pgsql-performance |
On Thu, 2008-11-06 at 13:02 -0600, Kevin Grittner wrote: > >>> "Kevin Grittner" <Kevin.Grittner@wicourts.gov> wrote: > > If I find a particular tweak to the background writer or some such > is > > particularly beneficial, I'll post again. > > It turns out that it was not the PostgreSQL version which was > primarily responsible for the performance difference. We updated the > kernel at the same time we rolled out 8.3.4, and the new kernel > defaulted to using write barriers, while the old kernel didn't. Since > we have a BBU RAID controller, we will add nobarrier to the fstab > entries. This makes file creation and unlink each about 20 times > faster. Woah... which version of the kernel was old and new? > > -Kevin > --
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