I threw out my patch before Christmas, replacing it with
Mike Galbraith's work.
Today I finally discovered why I had not been getting
very useful results testing the PLE code on the test
On this particular CPU model (Intel(R) Xeon(R) CPU X5670),
the value of ple_gap needs to be at least 48 !
A ple_gap value of 41 is simply too low to trigger reliably
with Avi's kvm-unit-tests PLE test and also only triggers
a few times a second at most (not too useful) with the other
tests I had been running...
All rights reversed