Re: Perf JSON events mismatch with Intel SDM

From: Andi Kleen
Date: Mon Jul 16 2018 - 11:38:03 EST


> The semantic difference being, as far as I can tell, that the "GT"
> counters do not sample randomly, but will rather offer a precise count of
> loads meeting the stated condition. 

It's all the same underlying hardware event. The only difference is what threshold
is used for filtering the loads.

-Andi