Re: wal_sync_methods for AIX

On Feb 19, 2008, at 3:58 PM, Dan Langille wrote:

> Erik Jones wrote:
>> On Feb 15, 2008, at 3:55 PM, Dan Langille wrote:
>>> We're using PostgreSQL 8.1.11 on AIX 5.3 and we've been doing
>>> some playing around
>>> with various settings. So far, we've (I say we, but it's another
>>> guy doing the work) found
>>> that open_datasync seems better than fsync. By how much, we have
>>> not yet determined,
>>> but initial observations are promising.
>> Here's a good explanation (by the Greg Smith) on the different
>> sync methods. It basically says that if you have open_datasync
>> available, it'll probably beat everything else.
>
> Where is that explanation?

Sorry, did I leave off the link? http://www.westnet.com/~gsmith/
content/postgresql/TuningPGWAL.htm

Erik Jones

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