Re: Memory reporting on CentOS Linux

From: Jeremy Carroll <jeremy(dot)carroll(at)networkedinsights(dot)com>
To: "reid(dot)thompson(at)ateb(dot)com" <reid(dot)thompson(at)ateb(dot)com>
Cc: "pgsql-performance(at)postgresql(dot)org" <pgsql-performance(at)postgresql(dot)org>
Subject: Re: Memory reporting on CentOS Linux
Date: 2009-08-14 20:20:58
Message-ID: C6AB315A.5EE3%jeremy.carroll@networkedinsights.com
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But the kernel can take back any of the cache memory if it wants to. Therefore it is free memory.

This still does not explain why the top command is reporting ~9GB of resident memory, yet the top command does not suggest that any physical memory is being used.

On 8/14/09 2:43 PM, "Reid Thompson" <reid(dot)thompson(at)ateb(dot)com> wrote:

you're using cached swap in your calculation ( 22825616 ) swap is not
RAM -- it's disk

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