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List:       openjms-user
Subject:    AW: [openjms-user] 90% cpu-usage and 10 msg/sec.
From:       "Oliver Belikan" <oliver.belikan () doubleSlash ! de>
Date:       2004-02-25 9:37:48
Message-ID: 001601c3fb83$0aabbaa0$9b0aa8c0 () jasad
[Download RAW message or body]

We use exactly the examples SimpleConsumer and SimplePublisher from
0.7.6.

In one shell we start "runpublisher.bat -topic test -mode tcp -count
1000", in another "runconsumer.bat -topic test -mode tcp -count 1000".
The server starts with "startup" in separate shell.


On a 1GB, 3GHz, GentoLinux with sun jdk 1.4.2_03 the consumer gets up to
16 msg/sec. The cpu usage is up to 50 %.

On a 512MB, 2,66GHz, Windows 2000 Server with sun jdk 1.4.1 the consumer
gets nearly 12 msg/sec. The cpu usage is 98 %.

On a 245MB, 2,4GHz, Windows XP with sun jdk 1.3.1 we have 12-14 msg/sec.
cpu-Usage constant 70 %.

On a 512MB, 2,66 GHz, Solaris 8 with sun jdk 1.4.2_03 we get 15 msg/sec
and cpu is up to 65 %.

The publisher runs with 400 msg/sec. fine.


-----Ursprüngliche Nachricht-----
Von: openjms-user-admin@lists.sourceforge.net
[mailto:openjms-user-admin@lists.sourceforge.net] Im Auftrag von Jim
Alateras
Gesendet: Dienstag, 24. Februar 2004 20:13
An: openjms-user@lists.sourceforge.net
Betreff: RE: [openjms-user] 90% cpu-usage and 10 msg/sec.


Additionally,

What version of openjms are you using?

Are consumers using receiver() or onMessage() to receive messages?

> -----Original Message-----
> From: openjms-user-admin@lists.sourceforge.net [mailto:openjms-user- 
> admin@lists.sourceforge.net] On Behalf Of Jim Alateras
> Sent: Wednesday, February 25, 2004 6:09 AM
> To: openjms-user@lists.sourceforge.net
> Subject: RE: [openjms-user] 90% cpu-usage and 10 msg/sec.
> 
> What is the size of the messages you are sending?
> 
> How many subscribers/consumers are you using?
> 
> Are you getting the same throughput on each operating system?
> 
> 
> cheers
> </jima>
> 
> > -----Original Message-----
> > From: openjms-user-admin@lists.sourceforge.net [mailto:openjms-user-

> > admin@lists.sourceforge.net] On Behalf Of Oliver Belikan
> > Sent: Wednesday, February 25, 2004 1:32 AM
> > To: openjms-user@lists.sourceforge.net
> > Subject: [openjms-user] 90% cpu-usage and 10 msg/sec.
> >
> > Hi,
> >
> > We are trying the included examples (runpublisher and runconsumer)
on
> > difffernt OS (Solaris 8, Win32, Linux) with the JREs (1.3.1 and
> 1.4.2).
> > The problem on each environment is the high cpu-usage (50-90%)
> produced
> > from runconsumer. There is no mentionable difference between TCP and

> > RMI. The rate of consumer is only 10 to 14 messages/sec. (for
> NON_PERSISTENT
> > messages).
> >
> > We need approximately up to 200 messages/sec. Any ideas ? Thank you.
> >
> >
> >
> >
> >
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