jmeter-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Sonam Chauhan <son...@gmail.com>
Subject Re: Vertically Scaling JMeter
Date Mon, 12 Sep 2011 05:54:11 GMT
Metal.sf.net was written to do just this. Give it a spin to see if it suffices

Sonam

On 12/09/2011, at 10:12 AM, sebb <sebbaz@gmail.com> wrote:

> On 12 September 2011 00:59, Oliver Lloyd <oliver_lloyd@hotmail.com> wrote:
>> I'm thinking of running multiple jmeter processes on a single machine, up to
>> 20. My testing so far has not highlighted any issues with this in principle
>> - I can execute the same jmx file over multiple java processes and I am
>> careful to write to separate jtl files.
>> 
>> The reason I'm taking this approach is to meet a requirement for a test
>> simulating a very large number of concurrent connections for an application
>> using long-polling. My test is extremely simple: one GET request which is
>> held open by the server for 15 seconds and then immediately resent, that's
>> it. Running this test does not create a heavy load on the machine JMeter
>> runs on - the throughput is low - but I am not able to run more than about
>> 1000 threads within a single JM process (I get OOM errors past that). I need
>> quite a lot more than 1000 so by vertically scaling multiple JM processes I
>> am aiming to have each physical machine hold open about 10-20,000
>> connections and then scale these out horizontally to get the load I need.
>> 
>> Doable?
> 
> It sounds like you won't run out of CPU, and I assume you have enough
> physical memory to support all the JVM instances.
> 
> However, depending on the OS, you may find it tricky to support so
> many connections.
> You may need to tweak the OS settings.
> 
>> -----
>> http://www.http503.com/
>> --
>> View this message in context: http://jmeter.512774.n5.nabble.com/Vertically-Scaling-JMeter-tp4792729p4792729.html
>> Sent from the JMeter - User mailing list archive at Nabble.com.
>> 
>> ---------------------------------------------------------------------
>> To unsubscribe, e-mail: jmeter-user-unsubscribe@jakarta.apache.org
>> For additional commands, e-mail: jmeter-user-help@jakarta.apache.org
>> 
>> 
> 
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: jmeter-user-unsubscribe@jakarta.apache.org
> For additional commands, e-mail: jmeter-user-help@jakarta.apache.org
> 

---------------------------------------------------------------------
To unsubscribe, e-mail: jmeter-user-unsubscribe@jakarta.apache.org
For additional commands, e-mail: jmeter-user-help@jakarta.apache.org


Mime
View raw message