Re: new journaling system in OSX - Mailing list pgsql-bugs

From Bruce Momjian
Subject Re: new journaling system in OSX
Date
Msg-id 200211151508.gAFF8F825863@candle.pha.pa.us
Whole thread Raw
In response to new journaling system in OSX  (Theodore Petrosky <tedpet5@yahoo.com>)
List pgsql-bugs
Theodore Petrosky wrote:
> I just upgraded to system 10.2.2 for Mac OSX. I saw in
> the documentation that they have added a new
> Journaling File System so on a lark I turned it on.
>
> I see that when postgresql is starting up it now takes
> it quite a while (from about 2 seconds to 12-15
> seconds). I don't see anything else 'weird' however
> does anyone have any experience with this kind of
> behavior?

Wow, that's a pretty dramatic change.  Journalling file systems do cause
extra overhead when we fsync the data to the disk, but I wouldn't expect
that magnitude of change, and I wouldn't expect it to be during startup.

--
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  pgman@candle.pha.pa.us               |  (610) 359-1001
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