Are there any Java libraries for adjusting IO scheduler priority on linux

Question

I have a Java program running on a linux system, which I would like to give a higher IO Scheduler priority. Is there a library JNI/JNA based that would allow me to do that from within my code?

Answer 1

You could spawn and external command and call ionice on your process.

Answer 2

You can get the PID of the Java Process by using the Java Management API, at least when using the Sun JVM. Have a look at the actual implementations of the management objects, one returns the pid (don't know which for the moment).

Then I would use jnative to call the linux function, so you don't have to rely on ionice to be installed.