16 Jun
2011
16 Jun
'11
8:55 a.m.
Hello,
Vincent Guittot, le Thu 16 Jun 2011 10:49:13 +0200, a écrit :
The affinity between Arm processors is defined in the MPIDR register. We can identify which processors are in the same cluster, and which ones have performance interdependency. The cpu topology of an Arm platform can be set thanks to this register and this topology is then used by sched_mc and sched_smt.
Cool! Could you check that the hwloc tool gets also gets this information from userland through /sys, and/or send me the output of the hwloc-gather-topology tool from hwloc so we can add an testcase for this?
Samuel