Raw Access to Performance Counters on GPU?

Discussion created by aj_guillon on Oct 23, 2010
Latest reply on Nov 29, 2010 by aj_guillon

I'm getting very desparate for performance tuning information on Linux, and at this point I'm sufficiently desparate to write something myself.  Are the performance counters on the card documented so that I can write my own interface to them?  Would there be any hope of guidance from AMD so that an open-source tuning application can be written?  Something that just gets the raw counters from the device is a good first step.  Where does support have to be written, at kernel level or at userspace?

At this point, I cannot further optimize my application without a profiler... and rather than just complaining I'm fully ready to do it myself with some guidance.