Multiple threads restricted to a single core

[David Auzinger]

Hello!

I've run into a problem while using Jenkins as a means to automate a JUnit/Selenium test.

I'm working on an automated test for a Webshop using the Selenium WebDriver.

I wrote the test multithreaded to us all available CPU-cores. Problem is, while the test runs as planned on a local machine when launche via Eclipse or Maven, when i'm launching it via Jenkins the CPU-load looks like only one of 4 cores is working. Is there any way to allow a single Jenkins-build to use all 4 Cores?

Best Regards,

David

[David Auzinger]

Btw. im launching via Maven on the server too.

[JonathanRRogers]

Does your test run inside the Jenkins process or as a subprocess? Especially if the latter is true, I doubt Jenkins is the component limiting concurrency.

[David Auzinger]

Thanks for the response!

Hmm, haven't checked that yet, but i will do it as soon as I get back to it tomorrow (I'm in europe). What i can tell you is that i started the process via mvn test as a Jenkins build and spawned subthreads from this one.

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[David Auzinger]

Strangest thing happened today, when i launched the build again, all 4 cores where in use, thanks anyways! *shamed*

On Thursday, 25 July 2013 22:21:28 UTC+2, David Auzinger wrote:

Thanks for the response!

Hmm, haven't checked that yet, but i will do it as soon as I get back to it tomorrow (I'm in europe). What i can tell you is that i started the process via mvn test as a Jenkins build and spawned subthreads from this one.

On Jul 25, 2013 10:15 PM, "JonathanRRogers" <...> wrote:

On Thursday, July 25, 2013 7:41:44 AM UTC-4, David Auzinger wrote:

Hello!

I've run into a problem while using Jenkins as a means to automate a JUnit/Selenium test.

I'm working on an automated test for a Webshop using the Selenium WebDriver.

I wrote the test multithreaded to us all available CPU-cores. Problem is, while the test runs as planned on a local machine when launche via Eclipse or Maven, when i'm launching it via Jenkins the CPU-load looks like only one of 4 cores is working. Is there any way to allow a single Jenkins-build to use all 4 Cores?

Does your test run inside the Jenkins process or as a subprocess? Especially if the latter is true, I doubt Jenkins is the component limiting concurrency.

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