Re: OT: Better Java performance on Linux

[Martin Strand]

You should definitely run the server VM. Check java -version, some linux  
packages are already configured to use the server VM. Otherwise, just pass  
-server to java when you start it.

On Mon, 22 Jan 2007 09:35:25 +0100, Inge Solvoll <[EMAIL PROTECTED]>  
wrote:

Hi

Thanks, that's what I thought. Now I'm not really sure what would be best
for our environment. We run eclipse, jboss and tomcat on our machines,  
and
need the most efficient environment possible for those 3 things. jboss is
restarted 1 or 2 times a day, while tomcat is restarted many times a day.

What would be most efficient on such a setup, a server (EE) or a client  
(SE)
JVM?

On 1/19/07, Mark Stang <[EMAIL PROTECTED]> wrote:

Inge,
The SE should be a client version and designed for quick GUI
start-up.  Whereas the EE version is the "server" version and starts  
slower,
but is designed for long-time running.  They have different garbage
collection strategies.

HTH,

Mark

Mark J. Stang
Senior Engineer/Architect
office: +1 303.468.2900
mobile: +1 303.507.2833
Ping Identity



-----Original Message-----
From: Inge Solvoll [mailto:[EMAIL PROTECTED]
Sent: Fri 1/19/2007 1:37 AM
To: Tapestry users
Subject: Re: OT: Better Java performance on Linux

Thanks for great help to all of you!

When I said "performance gap", I meant for example starting tomcat in 5
sec
instead of 20 sec, much faster eclipse, and so on.

I'm a little confused when downloading JDK from Sun's pages, does it
matter
if I download SE or EE? Does it matter at all what JDK version I  
download,
or is this only a question of configuring it correctly when installed?

I already have tried setting a couple of VM parameters on both eclipse,
tomcat and jboss on startup, and gotten some minor improvements on
OutOfMemory crashes, but I would love to try to increase the actual  
speed
performance as well. I will try to read a bit and get smarter on this
subject :)

For reference, here's my Eclipse startup on my Windows XP machine:

C:\dev\eclipse\eclipse.exe  -data C:\dev\eclipse_workspace -vm
C:\dev\jdk1.6\bin\javaw.exe  -nosplash -vmargs -Xms128m -Xmx256m
-XX:MaxPermSize=128m

Thanks again!

Inge

On 1/16/07, Danny Angus <[EMAIL PROTECTED]> wrote:
>
> "Inge Solvoll" <[EMAIL PROTECTED]> wrote on 16/01/2007 09:53:50:
>
>
> > A friend of mine (big linux fan) told me that tests at his workplace
> > indicated a huge (up to 500%) java performance gap between linux and
> > windows
>
> Of course you have to also ask what he calls performance, what did he
> measure, response time, throughput, resource consumption, transaction
> rates, concurrency, something else?
>
> d.
>
>
>
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