On 10 July 2016 06:26:39 CEST, "Paul E. McKenney" <paul...@linux.vnet.ibm.com> wrote: >Hello! > >So I ran a quick benchmark which showed stair-step results. I >immediately >thought "Ah, this is due to CPU 0 and 1, 2 and 3, 4 and 5, and 6 and 7 >being threads in a core." Then I thought "Wait, this is an x86!" >Then I dumped out cpu*/topology/thread_siblings_list, getting the >following: > > cpu0/topology/thread_siblings_list: 0-1 > cpu1/topology/thread_siblings_list: 0-1 > cpu2/topology/thread_siblings_list: 2-3 > cpu3/topology/thread_siblings_list: 2-3 > cpu4/topology/thread_siblings_list: 4-5 > cpu5/topology/thread_siblings_list: 4-5 > cpu6/topology/thread_siblings_list: 6-7 > cpu7/topology/thread_siblings_list: 6-7
I'm guessing this is an AMD bulldozer like machine? -- Sent from my Android device with K-9 Mail. Please excuse my brevity.
