commit 4defea8559bc0f97a899d94c8d19d3b8bb802bc4
author Peter Zijlstra <a.p.zijlstra@chello.nl> Thu Nov 10 15:15:42 2011 +0100
committer Ingo Molnar <mingo@elte.hu> Tue Dec 06 08:33:58 2011 +0100
tree a9f0e5352d199542128e538ce77ff0d271ac23db
parent bc1738f6ee83015f090867813dcca4d690e7917c

perf, x86: Prefer fixed-purpose counters when scheduling

This avoids a scheduling failure for cases like:

  cycles, cycles, instructions, instructions (on Core2)

Which would end up being programmed like:

  PMC0, PMC1, FP-instructions, fail

Because all events will have the same weight.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/n/tip-8tnwb92asqj7xajqqoty4gel@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@elte.hu>