You can merge results from multiple test runs - actually, JMeter will do
it for you in the listeners.

Bandwidth/IO is absolutely an issue when the client is receiving full
requests from multiple remote servers.  Probably I should just say "IO".
Bandwidth makes people think only of the pipe, not the client machines
ability to read and process all those bytes.

You had mentioned 500 threads only used 35% of cpu and 25% of memory, so
I'm not sure why 1000 is suddenly killing your machine.  java 1.4 and
1.5 can deal with 1000 threads, given the hardware resources.  Have you
bumped up the jvm heap size sufficiently?

You can run multiple instances on the same machine, but I don't expect
things to work better that way.  More likely, it's just a way to use
more memory.

-Mike

On Wed, 2005-06-15 at 17:06 +0300, Yuval wrote:
> Hi Mike,
>  But I want to run load test which will include few jmeter-servers, and if 
> possible, to enjoy the benefit of seeing all the results from one place.
> I'm not sure it's a bandwidth issue. When I define 1000 threads in the 
> thread group, the jmeter-server stops working after few minutes - when I 
> only have 30-40 working threads. 
> Don't you think that it may be that there are too many threads for this 
> process?
> Is it possible to run 2 jmeter servers on the same machine, listening on 
> different ports?
>  Thanks,
>  Y.
> 
>  On 6/15/05, Michael Stover <[EMAIL PROTECTED]> wrote: 
> > 
> > Most likely the problem is bandwidth/IO. The server is forwarding every
> > request to the client JMeter machine. That means the server's IO is
> > doing double duty - receiving all those requests and turning around and
> > sending them all out. If you tried running your test in normal non-gui
> > mode on the solaris, and then import the resulting .jtl file afterward
> > to your gui client, see if that doesn't increase your bounds.
> > 
> > Because JMeter's remoting abilities does nothing to relieve bandwidth
> > limits, I don't use it - it's not actually a useful way currently to
> > scale load testing up. Better is to simply run multiple non-gui
> > instances on multiple machines.
> > 
> > -Mike
> > 
> > On Wed, 2005-06-15 at 10:42 +0300, Yuval wrote:
> > > Hi,
> > > I'm trying to run a load test (web) with the jmeter server running on a
> > > Solaris machine.
> > > The problem is that it seems like I can run only ~500 users, while the 
> > CPU
> > > is only around 35% and the memory is on 25%.
> > > Anyone knows if there's a limitation of the max number of threads per
> > > process on Solaris, or any other cause for this issue?
> > > Thanks,
> > > Y.
> > 
> > 
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