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From UBIK LOAD PACK Support <>
Subject Re: jmeter thread limits
Date Mon, 15 Dec 2014 14:10:21 GMT
The limit really depends on your system and your test plan.
If you follow JMeter Best-practices :


you can easily go to much more threads .

For example we currently load without any problem more than 3500 threads
with 1 JVM on a real life ecommerce website with 8 vCPU + 6 Go Xmx and
there are reports of tests with more than 10K threads on a AWS m1.xlarge
with a 64 bit processor, 4 virtual CPUs and 15 GB RAM.

You can also use distributed testing if you want to go up.

Finally if not enough there are a lot of Cloud offers (free and commercial)
based on JMeter



On Mon, Dec 15, 2014 at 2:59 PM, Mark Lybarger <> wrote:
> i'm looking to test a system that should handle a load of 100,000 clients
> ... eventually. right now, the clients are in fact time shifted and really
> the system supports 100 or so concurrent clients.  that said, i'm looking
> to do some load / performance testing, so i naturally look to jmeter.
> i've read several articles or blogs suggesting a limit of 300 threads for
> jmeter testing. i'm going to need many many more. perhaps 3,000 would be a
> good starting number. so, finally, my question is this. is the thread limit
> based on system resources?  would using a distributed jmeter allow me to
> get up to 3,000 threads?
> what types of loads have jmeter users typically been able to put on their
> systems?
> my system under test is a back office system, but it provides an http
> interface to the end client.
> thanks!
> -mark-


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