From: Ruben Rubio Rey <ruben@rentalia.com>
To: Jim C. Nasby <jnasby@pervasive.com>
To: pgsql-performance@postgresql.org
Subject: Re: Posrgres speed problem
Date: Tue, 13 Jun 2006 08:37:36 +0200
Message-ID: <448E5D30.6010600@rentalia.com> (raw)
In-Reply-To: <20060612152354.GT34196@pervasive.com>
References: <448D7C81.1000108@rentalia.com>
<20060612150506.GA50764@winnie.fuhr.org>
<20060612152354.GT34196@pervasive.com>
Jim C. Nasby wrote:
>On Mon, Jun 12, 2006 at 09:05:06AM -0600, Michael Fuhr wrote:
>
>
>>On Mon, Jun 12, 2006 at 04:38:57PM +0200, Ruben Rubio Rey wrote:
>>
>>
>>>I have two similar servers, one in production and another for testing
>>>purposes.
>>>Databases are equal (with a difference of some hours)
>>>
>>>In the testing server, an sql sentence takes arround 1 sec.
>>>In production server (low server load) takes arround 50 secs, and uses
>>>too much resources.
>>>
>>>Explain analyze takes too much load, i had to cancel it!
>>>
>>>
>>The EXPLAIN ANALYZE output would be helpful, but if you don't want
>>to run it to completion then please post the output of EXPLAIN
>>ANALYZE for the fast system and EXPLAIN (without ANALYZE) for the
>>slow one.
>>
>>As someone else asked, are you running ANALYZE regularly? What
>>about VACUUM?
>>
>>
>
>For the next vacuum, can you add the -v (verbose) switch and email the
>last few lines of output?
>
>INFO: free space map contains 39 pages in 56 relations
>DETAIL: A total of 896 page slots are in use (including overhead).
>896 page slots are required to track all free space.
>Current limits are: 20000 page slots, 1000 relations, using 223 KB.
>VACUUM
>
>
INFO: free space map contains 1624 pages in 137 relations
DETAIL: A total of 3200 page slots are in use (including overhead).
3200 page slots are required to track all free space.
Current limits are: 20000 page slots, 1000 relations, using 182 KB.
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To: pgsql-performance@postgresql.org
Cc: ruben@rentalia.com, jnasby@pervasive.com
Subject: Re: Posrgres speed problem
In-Reply-To: <448E5D30.6010600@rentalia.com>
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