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Date:      Tue, 26 Nov 2013 01:28:38 +0100
From:      Matthias Petermann <>
Subject:   Re: FreeBSD9.2: Tomcat process with very high memory allocation
Message-ID:  <>
In-Reply-To: <>
References:  <> <>

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Hello Anton,

On 11/25/2013 11:08 PM, Anton Sayetsky wrote:

> There is _no_ problem. Tomcat has 9 GiB of virtual memory and 439 MiB
> of resident.
> The actual amount of really used mem is 439 MiB.
> Virtual contains all memory that theoretically can be used (but NOT
> allocated at a point of time in contrast of res) by process, all
> shared libraries that it used etc etc. In practice, virt memory shows
> nothing helpful.
> You should take a look on only resident memory of processes in most cases.

Just for curiosity - is there a way to display all (theoretically) used
virtual memory of a process? So I'd like to understand how it calculates
the total size shown in top.

Many thanks in advance.

Best regards,

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