On Mon, Jul 23, 2018 at 11:43:56AM -0400, Liang, Kan wrote: > > So I like PEBS_ALL.. what I don't like is that it seems to be mutually > > exclusive with PEBS Load Latency. > > Right, MSR_PEBS_ENABLE:32-35 is model specific.
Doesn't mean they couldn't have avoided conflicting bits. > For Atom, > Goldmont and earlier platform, they are reserved. > Goldmont Plus, 32-34 are for fixed counter, 35 is reserved. > For Core, > from Nehalem to latest 8th, 32-35 are for Load Latency. Seems rather unfortunate to me. Because PEBS_ALL is good, but since they took conflicting bits, we'll have yet another variant when/if (I hope they do) they bring it to Core :/
