From owner-freebsd-java@FreeBSD.ORG  Fri Nov 10 22:15:57 2006
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Date: Sat, 11 Nov 2006 00:15:01 +0200
From: Nikos Ntarmos <ntarmos@ceid.upatras.gr>
To: freebsd-java@freebsd.org
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Subject: Re: Performance of Java on FBSD vs. others...
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Hi there.

On Fri, Nov 10, 2006 at 10:52:47PM +0100, Arne H. Juul wrote:
> >I was using -Xms256m -Xmx1024m. Tried with -Xms1024m -Xmx1024m, again
> >without any noticeable difference.
> 
> What's "top" look like after running this for a minute or two? You
> said you had 1G = 1024MB of RAM; trying to have a heap of 1024m you
> may be swapping like crazy, if so try with 600m to 800m.

Nope, it's not swap that's killing it... The program i'm running is a
p2p network simulation; first, it generates a number of nodes, then it
populates the resulting overlay with data, then it queries it. During
the node generation part, memory requirements are in the vicinity of
200-300 MBytes, then they go up as data items get added. However, the
difference in performance shows up even in this first stage: ~1000'' for
FreeBSD, ~210'' for win32, ~220 for linux.
 
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