Testing of Xen vPMU filter options.
Three tests are executed on a simple program (noploop, which runs NOP in a loop). The first two show Linux "perf stat" summaries, and the third tests specific counters: the IPC ones, an architectural one, and a few extras. Which of these will work depends on the filter mode.
I'll begin by showing off and on, the current modes, and then the new modes: ipc and arch.
root@lgud-bgregg:~> xl dmesg | grep vpmu