Re: PERFORMANCE

From: Jean-Michel POURE <jmpoure(at)translationforge(dot)com>
To: <valeria(at)saolucas-se(dot)com(dot)br>
Cc: pgsql-php(at)postgresql(dot)org
Subject: Re: PERFORMANCE
Date: 2002-04-18 20:17:05
Message-ID: 200204182217.06005.jmpoure@translationforge.com
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Le Jeudi 18 Avril 2002 21:54, valeria(at)saolucas-se(dot)com(dot)br a écrit :
> Top result when the server is almost stoping ...
>
> 4:19pm up 2 days, 3:04, 2 users, load average: 4.26, 4.06, 4.59
> 102 processes: 96 sleeping, 6 running, 0 zombie, 0 stopped
> CPU0 states: 83.0% user, 15.0% system, 0.0% nice, 0.1% idle
> CPU1 states: 82.0% user, 16.0% system, 0.0% nice, 0.1% idle
> Mem: 771384K av, 699676K used, 71708K free, 0K shrd, 6488K buff
> Swap: 522232K av, 77420K used, 444812K free

Load avarage is 4.26. A large query seems to overflow the system.
Type command "top" to make sure PostgreSQL is really at stake.

Then, modify /etc/init.d/postgresql to run PostgreSQL in debug mode:
postmaster ... -d debug-level

Restart PostgreSQL service entering:
"service postgresql restart"

This will log all queries and may help you understand what is going on.

Best regards,
Jean-Michel POURE

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