jmeter-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From sebb <>
Subject Re: sample times reported by JMeter seem to scale incorrectly with the number of threads
Date Mon, 03 Mar 2014 18:31:42 GMT
On 3 March 2014 10:23, bruto <> wrote:
> Added some logging to the vanilla TCPSampler (using vanilla TCPClientImpl),
> it appears that execution time is to blame
> It's a different socket, different SocketInputStream every time, but still
> some synchronization must be going on causing the response read time to
> inflate

I  don't see how it can be a problem with the TCP sampler.

The implementation is extremely simple; if the read takes a long time
it must be a problem outside the JMeter code.
Possibly in the JVM, or network, or server.

As I already wrote, try running multiple separate JMeter instances and
see if the times increase.
Ideally on separate hosts - but beware of using VMs on the same
physical host as these can interfere with each other.

> --
> View this message in context:
> Sent from the JMeter - User mailing list archive at
> ---------------------------------------------------------------------
> To unsubscribe, e-mail:
> For additional commands, e-mail:

To unsubscribe, e-mail:
For additional commands, e-mail:

View raw message