On Sat, Nov 17, 2012 at 4:35 PM, Alex Shi <[email protected]> wrote: > Just find imbalance issue on the patchset. > > I write a one line program: > int main () > { > int i; > for (i=0; i< 1; ) > __asm__ __volatile__ ("nop"); > } > it was compiled with name pl and start it on my 2 socket * 4 cores * > HT NUMA machine: > the cpu domain top like this: > domain 0: span 4,12 level SIBLING > groups: 4 (cpu_power = 589) 12 (cpu_power = 589) > domain 1: span 0,2,4,6,8,10,12,14 level MC > groups: 4,12 (cpu_power = 1178) 6,14 (cpu_power = 1178) 0,8 > (cpu_power = 1178) 2,10 (cpu_power = 1178) > domain 2: span 0,2,4,6,8,10,12,14 level CPU > groups: 0,2,4,6,8,10,12,14 (cpu_power = 4712) > domain 3: span 0-15 level NUMA > groups: 0,2,4,6,8,10,12,14 (cpu_power = 4712) 1,3,5,7,9,11,13,15 > (cpu_power = 4712) > > $for ((i=0; i< I; i++)); do ./pl & done > when I = 2, they are running on cpu 0,12 > I = 4, they are running on cpu 0,9,12,14 > I = 8, they are running on cpu 0,4,9,10,11,12,13,14 >
Ops, it was tested on latest V15 tip/master tree, head is a7b7a8ad4476bb641c8455a4e0d7d0fd3eb86f90 not on this series. Sorry. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
