Re: PostgreSQL disk fragmentation causes performance problems on Windows

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От Joshua D. Drake
Тема Re: PostgreSQL disk fragmentation causes performance problems on Windows
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Msg-id 5540E588.9080507@commandprompt.com
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Ответ на Re: PostgreSQL disk fragmentation causes performance problems on Windows  (Andres Freund <andres@anarazel.de>)
Ответы Re: PostgreSQL disk fragmentation causes performance problems on Windows  ("ktm@rice.edu" <ktm@rice.edu>)
Список pgsql-performance
On 04/29/2015 01:08 AM, Andres Freund wrote:

>> Which OS and filesystem is this done on? Because many halfway modern
>> systems, like e.g ext4 and xfs, implement this in the background as
>> 'delayed allocation'.
>
> Oh, it's in the subject. Stupid me, sorry for that. I'd consider testing
> how much better this behaves under a different operating system, as a
> shorter term relief.

This is a known issue on the Windows platform. It is part of the
limitations of that environment. Linux/Solaris/FreeBSD do not suffer
from this issue in nearly the same manner.

jD




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