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From: Arjen van der Meijden <acm@tweakers.net>
To: josh@agliodbs.com
To: 'Patrick Hatcher' <PHatcher@macys.com>
To: pgsql-performance@postgresql.org
Subject: Re: Memory question
Date: Fri, 27 Jun 2003 22:49:17 +0200
Message-ID: <004901c33ced$98cf6430$3ac15e91@acm> (raw)
In-Reply-To: <200306271254.51441.josh@agliodbs.com>

> The "used" figure in Top doesn't really tell you anything, 
> since it includes 
> the kernel buffer which tries to take up all available 
> memory.  If you 
> actually look at the list of processes, I think you'll find 
> that you're only 
> using 1-2% of memory for applications.
> 
> I'm not sure what app would show your "real" free memory.

The command 'free' shows what you like to know:
$ free
             total       used       free     shared    buffers
cached
Mem:       1551480    1505656      45824          0     101400
1015540
-/+ buffers/cache:     388716    1162764
Swap:       524264      23088     501176

The used/free amounts on the second line are the interesting ones in
this case.

Arjen






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