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

Regards!
Alex
On Sat, Nov 17, 2012 at 12:25 AM, Ingo Molnar [off-list ref] wrote:

This is the split-out series of mm/ patches that got no objections
from the latest (v15) posting of numa/core. If everyone is still
fine with these then these will be merge candidates for v3.8.

I left out the more contentious policy bits that people are still
arguing about.

The numa/base tree can also be found here:

   git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git numa/base

Thanks,

    Ingo

------------------->

Andrea Arcangeli (1):
  numa, mm: Support NUMA hinting page faults from gup/gup_fast

Gerald Schaefer (1):
  sched, numa, mm, s390/thp: Implement pmd_pgprot() for s390

Ingo Molnar (1):
  mm/pgprot: Move the pgprot_modify() fallback definition to mm.h

Lee Schermerhorn (3):
  mm/mpol: Add MPOL_MF_NOOP
  mm/mpol: Check for misplaced page
  mm/mpol: Add MPOL_MF_LAZY

Peter Zijlstra (7):
  sched, numa, mm: Make find_busiest_queue() a method
  sched, numa, mm: Describe the NUMA scheduling problem formally
  mm/thp: Preserve pgprot across huge page split
  mm/mpol: Make MPOL_LOCAL a real policy
  mm/mpol: Create special PROT_NONE infrastructure
  mm/migrate: Introduce migrate_misplaced_page()
  mm/mpol: Use special PROT_NONE to migrate pages

Ralf Baechle (1):
  sched, numa, mm, MIPS/thp: Add pmd_pgprot() implementation

Rik van Riel (5):
  mm/generic: Only flush the local TLB in ptep_set_access_flags()
  x86/mm: Only do a local tlb flush in ptep_set_access_flags()
  x86/mm: Introduce pte_accessible()
  mm: Only flush the TLB when clearing an accessible pte
  x86/mm: Completely drop the TLB flush from ptep_set_access_flags()

 Documentation/scheduler/numa-problem.txt | 230 +++++++++++++++++++++++++++++++
 arch/mips/include/asm/pgtable.h          |   2 +
 arch/s390/include/asm/pgtable.h          |  13 ++
 arch/x86/include/asm/pgtable.h           |   7 +
 arch/x86/mm/pgtable.c                    |   8 +-
 include/asm-generic/pgtable.h            |   4 +
 include/linux/huge_mm.h                  |  19 +++
 include/linux/mempolicy.h                |   8 ++
 include/linux/migrate.h                  |   7 +
 include/linux/migrate_mode.h             |   3 +
 include/linux/mm.h                       |  32 +++++
 include/uapi/linux/mempolicy.h           |  16 ++-
 kernel/sched/fair.c                      |  20 +--
 mm/huge_memory.c                         | 174 +++++++++++++++--------
 mm/memory.c                              | 119 +++++++++++++++-
 mm/mempolicy.c                           | 143 +++++++++++++++----
 mm/migrate.c                             |  85 ++++++++++--
 mm/mprotect.c                            |  31 +++--
 mm/pgtable-generic.c                     |   9 +-
 19 files changed, 807 insertions(+), 123 deletions(-)
 create mode 100644 Documentation/scheduler/numa-problem.txt

--
1.7.11.7

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-- 
Thanks
    Alex

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