As mentioned on D44647, this patch increases the default memory latency to +5cy as well as costing +1uop, which more closely matches what most custom cases are doing for reg-mem instructions.
I've left ReadAfterLd at 4cy at the moment, which seems to be correct for 'pure' loads - should I can increase this to 5 as well? What about WriteLoad etc?
As Sandy Bridge is currently our default generic model, this affects a lot of scheduling tests...