cpu load and similar
I wonder if there is some way to get informations about gpu load like those in gpuz which are available on windows with normal drivers. Cards like intel allows to even see what is using the gpu actually (even at level of opengl calls etc) with gputop. There is some way to obtain this on linux without using old instrumented drivers (which probably won't even work anymore on recent kernel/x.org) and which require modification of the applications? At least the same level of informations available on windows... although something like gpu top would be really great to identify bottlenecks while working on 3d engines and games...