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Posted to users@tomcat.apache.org by kolaloka <ko...@freemail.hu> on 2009/05/20 20:56:31 UTC
tomcat6 executables on Windows Serer
Hi All,
I need to fine-tune GeoServer under Jetty. However, it always eats up
memory, and I've asked the previous developer to give info about his setup
with Tomcat 6 on Windows Server. He wrote that tomcat6.exe uses 225M memory,
while the total system memory usage is 4.3G. I don't know if other services
use the machine, so my question is:
Is tomcat6.exe only a Windows service program that executes a JVM such as
java.exe so tomcat6.exe has not much to do with actual services and
processing?
For me, -ms1024m for my JVM is far too low (physical mem is 1G), I must
investigate the real memory demand of this service.
Thank you in advance.
Best regards: Balázs
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RE: [OT] tomcat6 executables on Windows Serer
Posted by "Caldarale, Charles R" <Ch...@unisys.com>.
> From: André Warnier [mailto:aw@ice-sa.com]
> Subject: Re: [OT] tomcat6 executables on Windows Serer
>
> Now come on, Chuck, be honest !
> When you were in school, they were not even talking about bytes.
Yeah, you're right; we were still using slide rules.
> And the only place they were talking about MegaBytes
> then was in science-fiction novels.
Not even there. You'd need a whole star to power the vacuum tubes...
- Chuck
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Re: [OT] tomcat6 executables on Windows Serer
Posted by André Warnier <aw...@ice-sa.com>.
Caldarale, Charles R wrote:
>
> When I was in school, 1024m == 1G; perhaps things are different now...
>
Now come on, Chuck, be honest !
When you were in school, they were not even talking about bytes.
And the only place they were talking about MegaBytes then was in
science-fiction novels.
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RE: tomcat6 executables on Windows Serer
Posted by "Caldarale, Charles R" <Ch...@unisys.com>.
> From: kolaloka [mailto:kolaloka@freemail.hu]
> Subject: RE: tomcat6 executables on Windows Serer
>
> Well, under Linux, the top lists the "java" process, not an .so
That's because top, ps, and the Windows equivalents show only the initial executable, not the shared library names where the functionality is actually implemented. There are many different launchers that will get you into the JVM, such as java.exe, javaw.exe, javac.exe, jar.exe, jstack.exe, jps.exe, jconsole.exe, etc., including tomcat6.exe.
- Chuck
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RE: tomcat6 executables on Windows Serer
Posted by kolaloka <ko...@freemail.hu>.
Hi Charles,
You are very clever, thanx for teaching...
> Perhaps you should ask on a Jetty list?
I've asked about Tomcat.
> Neither tomcat6.exe nor java.exe are JVMs; an actual JVM on Windows is
> several .dll files plus
> numerous Java classes in various jars. The .exe programs are just
> launchers.
Well, under Linux, the top lists the "java" process, not an .so and writes
its CPU, memory consumption etc. I've just tried under Windows, Task manager
(or whatever it called in English - I have Hungarian Windows) lists
"java.exe" under processes... which definitely contains the JVM based on its
memory and CPU consumption before and after starting calculations. The
information I've got is about "Tomcat6.exe" and I would like to know if it
is only a service launcher and if it definitely start a "java.exe" (listed
separately in Task manager) which would reflect the JVM's actual resource
consumption?
>> For me, -ms1024m for my JVM is far too low (physical mem is 1G)
>When I was in school, 1024m == 1G; perhaps things are different now...
I really know about that equation...
best regards: Balázs
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RE: tomcat6 executables on Windows Serer
Posted by "Caldarale, Charles R" <Ch...@unisys.com>.
> From: kolaloka [mailto:kolaloka@freemail.hu]
> Subject: tomcat6 executables on Windows Serer
>
> I need to fine-tune GeoServer under Jetty.
Perhaps you should ask on a Jetty list?
> Is tomcat6.exe only a Windows service program that executes
> a JVM such as java.exe
Neither tomcat6.exe nor java.exe are JVMs; an actual JVM on Windows is several .dll files plus numerous Java classes in various jars. The .exe programs are just launchers.
> For me, -ms1024m for my JVM is far too low (physical mem is 1G)
When I was in school, 1024m == 1G; perhaps things are different now...
- Chuck
THIS COMMUNICATION MAY CONTAIN CONFIDENTIAL AND/OR OTHERWISE PROPRIETARY MATERIAL and is thus for use only by the intended recipient. If you received this in error, please contact the sender and delete the e-mail and its attachments from all computers.