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linux/arch/x86/mm
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Jack Steiner 0ac0c0d0f8 cpusets: randomize node rotor used in cpuset_mem_spread_node() 
Some workloads that create a large number of small files tend to assign
too many pages to node 0 (multi-node systems).  Part of the reason is that
the rotor (in cpuset_mem_spread_node()) used to assign nodes starts at
node 0 for newly created tasks.

This patch changes the rotor to be initialized to a random node number of
the cpuset.

[akpm@linux-foundation.org: fix layout]
[Lee.Schermerhorn@hp.com: Define stub numa_random() for !NUMA configuration]
Signed-off-by: Jack Steiner <steiner@sgi.com>
Signed-off-by: Lee Schermerhorn <lee.schermerhorn@hp.com>
Cc: Christoph Lameter <cl@linux-foundation.org>
Cc: Pekka Enberg <penberg@cs.helsinki.fi>
Cc: Paul Menage <menage@google.com>
Cc: Jack Steiner <steiner@sgi.com>
Cc: Robin Holt <holt@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-27 09:12:44 -07:00
..
kmemcheck kmemcheck: Test the full object in kmemcheck_is_obj_initialized() 2010-02-17 21:39:08 +02:00
dump_pagetables.c
extable.c x86, 64-bit: Move K8 B step iret fixup to fault entry asm 2009-10-12 18:29:46 +02:00
fault.c Merge branch 'x86-debug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2009-12-05 15:33:27 -08:00
gup.c x86, doc: Fix minor spelling error in arch/x86/mm/gup.c 2010-02-02 16:00:44 -08:00
highmem_32.c Merge branch 'kvm-updates/2.6.32' of git://git.kernel.org/pub/scm/virt/kvm/kvm 2009-09-14 17:43:43 -07:00
hugetlbpage.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
init_32.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
init_64.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
init.c Merge branch 'master' into export-slabh 2010-04-05 11:37:28 +09:00
iomap_32.c x86, pat: Add PAT reserve free to io_mapping* APIs 2009-08-26 15:41:16 -07:00
ioremap.c x86: Fix 'reservetop=' functionality 2010-04-30 12:19:53 +02:00
k8topology_64.c x86: Move find_smp_config() earlier and avoid bootmem usage 2009-11-24 12:10:51 +01:00
kmmio.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
Makefile x86, pat: Migrate to rbtree only backend for pat memtype management 2010-02-18 15:41:36 -08:00
memtest.c
mmap.c x86: Use helpers for rlimits 2010-01-27 15:17:31 -08:00
mmio-mod.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
numa_32.c x86: Make 32bit support NO_BOOTMEM 2010-02-12 09:42:39 -08:00
numa_64.c Merge branch 'x86-bootmem-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2010-03-03 08:15:05 -08:00
numa.c cpusets: randomize node rotor used in cpuset_mem_spread_node() 2010-05-27 09:12:44 -07:00
pageattr-test.c
pageattr.c Merge branch 'drm-ttm-pool' into drm-core-next 2010-04-20 13:12:28 +10:00
pat_internal.h x86, pat: Migrate to rbtree only backend for pat memtype management 2010-02-18 15:41:36 -08:00
pat_rbtree.c x86, pat: In rbt_memtype_check_insert(), update new->type only if valid 2010-03-01 14:28:48 -08:00
pat.c Merge branch 'x86-pat-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2010-05-18 09:28:04 -07:00
pf_in.c
pf_in.h
pgtable_32.c x86: Fix parse_reservetop() build failure on certain configs 2010-05-03 09:22:19 +02:00
pgtable.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
physaddr.c x86: split __phys_addr out into separate file 2009-09-10 11:48:55 -07:00
physaddr.h x86: split __phys_addr out into separate file 2009-09-10 11:48:55 -07:00
setup_nx.c x86, mm: Report state of NX protections during boot 2009-11-16 13:44:59 -08:00
srat_32.c x86: Fix checking of SRAT when node 0 ram is not from 0 2009-12-16 16:43:37 -08:00
srat_64.c Merge branch 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2010-05-18 09:17:50 -07:00
testmmiotrace.c testmmiotrace.c: Add and use pr_fmt(fmt) 2009-10-12 08:05:41 +02:00
tlb.c x86: Convert tlbstate_lock to raw_spinlock 2010-02-17 18:28:59 +01:00