pg_autovacuum is a daemon, not something that get's run twice a day.
I think that's what the question Matthew was getting @. I'm not sure
what would happen to performance if pg_autovacuum was launched twice a
day from cron, but you could end up in an ugly situation if it starts
up.
--brian
On Jul 30, 2004, at 12:11 PM, Dan Langille wrote:
> On Fri, 30 Jul 2004, Matthew T. O'Connor wrote:
>
>> Stephane Tessier wrote:
>>
>>> I think with your help guys I'll do it!
>>>
>>> I'm working on it!
>>>
>>> I'll work on theses issues:
>>>
>>> we have space for more ram(we use 2 gigs on possibility of 3 gigs)
>>> iowait is very high 98% --> look like postgresql wait for io access
>>> raid5 -->raid0 if i'm right raid5 use 4 writes(parity,data, etc) for
>>> each
>>> write on disk
>>> use more transactions (we have a lot of insert/update without
>>> transaction).
>>> cpu look like not running very hard
>>>
>>> *php is not running on the same machine
>>> *redhat enterprise 3.0 ES
>>> *the version of postgresql is 7.3.4(using RHDB from redhat)
>>> *pg_autovacuum running at 12 and 24 hour each day
>>>
>>>
>> What do you mean by "pg_autovacuum running at 12 and 24 hour each
>> day"?
>
> I suspect he means at 1200 and 2400 each day (i.e noon and midnight).
>
> --
> Dan Langille - http://www.langille.org/
>
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