Accessing Pentium MSRs
Bernd Schmidt (crux@pool.informatik.rwth-aachen.de)
Tue, 9 Apr 1996 12:57:34 +0200 (MET DST)
Over the weekend, I crufted together a little kernel patch that adds two
syscalls to let processes access some of the Pentium MSR registers. Using these
event counters, you can analyze how your code behaves (e.g. how often the
second pipeline is in use, or how many branches are taken). If someone is
interested, I'll post the patch here.
Bernd