Question

I am running a simple script in Groovy on an Ubuntu 11.10 machine, which takes key/value pairs and adds them to a JDBM map in a loop.
Every ~3 minutes the script hangs for a couple of minutes and then resumes.
When I look at the resource monitor I see that there is no CPU or Memory activity and the process is in futex_wait_queue_me().

Please suggest means to overcome this, on a Windows machine by the way the application runs without the hangs.
Could this be an OS issue? (found many similar threads about similar futex_wait_queue_me() problems in Ubuntu0
Thanks

Answer 1

For anyone interested I used those parameters when running java:

-Xms16384M -Xmx16384M

You can find additional GC optimization tips at http://randomlyrr.blogspot.it/2012/03/java-tuning-in-nutshell-part-1.html