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References: <ops931hxox17d6mn@nuclight.avtf.net>	<200605261307.06671.kurt@intricatesoftware.com>	<ops955inu24fjv08@nuclight.avtf.net>
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Cc: Vadim Goncharov <vadimnuclight@tpu.ru>,
	Kurt Miller <kurt@intricatesoftware.com>
Subject: Re: diablo 1.5 died after 5 day uptime
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>>> high. Note that the jvm uses more memory then is controlled
>>> by the -Xmx arg. You need to leave some head room for that if
>>> your going to be setting your limits lower.
>> OK, thanx. Is that overhead big?
> 
> It varies depending on what your application does.

The JVM itself uses memory and there is additional area for JIT-compiled 
Java classes and for the young generation of the GC (can control that 
with -Xmn).

> Overall,
> I think you will find there is plenty of information on the
> web about how to tune memory usage of the jvm.

Like http://java.sun.com/docs/hotspot/gc5.0/gc_tuning_5.html