| From: | Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us> |
|---|---|
| To: | Theodore Petrosky <tedpet5(at)yahoo(dot)com> |
| Cc: | pgsql-bugs(at)postgresql(dot)org |
| Subject: | Re: new journaling system in OSX |
| Date: | 2002-11-15 15:08:15 |
| Message-ID: | 200211151508.gAFF8F825863@candle.pha.pa.us |
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| Lists: | 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.
--
Bruce Momjian | http://candle.pha.pa.us
pgman(at)candle(dot)pha(dot)pa(dot)us | (610) 359-1001
+ If your life is a hard drive, | 13 Roberts Road
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