| From: | "Joshua D(dot) Drake" <jd(at)commandprompt(dot)com> |
|---|---|
| To: | Andres Freund <andres(at)anarazel(dot)de>, Jan Gunnar Dyrset <jan(dot)g(dot)dyrset(at)cybernetica(dot)no> |
| Cc: | "pgsql-performance(at)postgresql(dot)org" <pgsql-performance(at)postgresql(dot)org> |
| Subject: | Re: PostgreSQL disk fragmentation causes performance problems on Windows |
| Date: | 2015-04-29 14:07:04 |
| Message-ID: | 5540E588.9080507@commandprompt.com |
| Views: | Raw Message | Whole Thread | Download mbox | Resend email |
| Thread: | |
| Lists: | 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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