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    Subject[PATCH 00/40] AutoNUMA19
    Hello everyone,

    It's time for a new AutoNUMA19 release.

    The objective of AutoNUMA is to be able to perform as close as
    possible to (and sometime faster than) the NUMA hard CPU/memory
    bindings setups, without requiring the administrator to manually setup
    any NUMA hard bind.
    (NOTE: the TODO slide is obsolete)

    git clone --reference linux -b autonuma19 git:// autonuma19

    Development autonuma branch:

    git clone --reference linux -b autonuma git://

    To update:

    git fetch
    git checkout -f origin/autonuma

    Changelog from AutoNUMA-alpha14 to AutoNUMA19:

    o sched_autonuma_balance callout location removed from schedule() now it runs
    in the softirq along with CFS load_balancing

    o lots of documentation about the math in the sched_autonuma_balance algorithm

    o fixed a bug in the fast path detection in sched_autonuma_balance that could
    decrease performance with many nodes

    o reduced the page_autonuma memory overhead to from 32 to 12 bytes per page

    o fixed a crash in __pmd_numa_fixup

    o knuma_numad won't scan VM_MIXEDMAP|PFNMAP (it never touched those ptes

    o fixed a crash in autonuma_exit

    o fixed a crash when split_huge_page returns 0 in knuma_migratedN as the page
    has been freed already

    o assorted cleanups and probably more

    Changelog from alpha13 to alpha14:

    o page_autonuma introduction, no memory wasted if the kernel is booted
    on not-NUMA hardware. Tested with flatmem/sparsemem on x86
    autonuma=y/n and sparsemem/vsparsemem on x86_64 with autonuma=y/n.
    "noautonuma" kernel param disables autonuma permanently also when
    booted on NUMA hardware (no /sys/kernel/mm/autonuma, and no
    page_autonuma allocations, like cgroup_disable=memory)

    o autonuma_balance only runs along with run_rebalance_domains, to
    avoid altering the usual scheduler runtime. autonuma_balance gives a
    "kick" to the scheduler after a rebalance (it overrides the load
    balance activity if needed). It's not yet tested on specjbb or more
    schedule intensive benchmark, hopefully there's no NUMA
    regression. For intensive compute loads not involving a flood of
    scheduling activity this doesn't show any performance regression,
    and it avoids altering the strict schedule performance. It goes in
    the direction of being less intrusive with the stock scheduler

    Note: autonuma_balance still runs from normal context (not softirq
    context like run_rebalance_domains) to be able to wait on process
    migration (avoid _nowait), but most of the time it does nothing at

    Changelog from alpha11 to alpha13:

    o autonuma_balance optimization (take the fast path when process is in
    the preferred NUMA node)


    o THP native migration (orthogonal and also needed for

    o port to ppc64, Ben? Any arch able to support PROT_NONE can also support
    AutoNUMA, in short all archs should work fine with AutoNUMA.

    Andrea Arcangeli (40):
    mm: add unlikely to the mm allocation failure check
    autonuma: make set_pmd_at always available
    autonuma: export is_vma_temporary_stack() even if
    xen: document Xen is using an unused bit for the pagetables
    autonuma: define _PAGE_NUMA_PTE and _PAGE_NUMA_PMD
    autonuma: x86 pte_numa() and pmd_numa()
    autonuma: generic pte_numa() and pmd_numa()
    autonuma: teach gup_fast about pte_numa
    autonuma: introduce kthread_bind_node()
    autonuma: mm_autonuma and sched_autonuma data structures
    autonuma: define the autonuma flags
    autonuma: core autonuma.h header
    autonuma: CPU follow memory algorithm
    autonuma: add page structure fields
    autonuma: knuma_migrated per NUMA node queues
    autonuma: init knuma_migrated queues
    autonuma: autonuma_enter/exit
    autonuma: call autonuma_setup_new_exec()
    autonuma: alloc/free/init sched_autonuma
    autonuma: alloc/free/init mm_autonuma
    autonuma: avoid CFS select_task_rq_fair to return -1
    autonuma: teach CFS about autonuma affinity
    autonuma: sched_set_autonuma_need_balance
    autonuma: core
    autonuma: follow_page check for pte_numa/pmd_numa
    autonuma: default mempolicy follow AutoNUMA
    autonuma: call autonuma_split_huge_page()
    autonuma: make khugepaged pte_numa aware
    autonuma: retain page last_nid information in khugepaged
    autonuma: numa hinting page faults entry points
    autonuma: reset autonuma page data when pages are freed
    autonuma: initialize page structure fields
    autonuma: link mm/autonuma.o and kernel/sched/numa.o
    autonuma: boost khugepaged scanning rate
    autonuma: page_autonuma
    autonuma: page_autonuma change #include for sparse
    autonuma: autonuma_migrate_head[0] dynamic size
    autonuma: bugcheck page_autonuma fields on newly allocated pages
    autonuma: shrink the per-page page_autonuma struct size

    arch/x86/include/asm/paravirt.h | 2 -
    arch/x86/include/asm/pgtable.h | 51 ++-
    arch/x86/include/asm/pgtable_types.h | 22 +-
    arch/x86/mm/gup.c | 2 +-
    arch/x86/mm/numa.c | 6 +-
    arch/x86/mm/numa_32.c | 3 +-
    fs/exec.c | 3 +
    include/asm-generic/pgtable.h | 12 +
    include/linux/autonuma.h | 64 ++
    include/linux/autonuma_flags.h | 68 ++
    include/linux/autonuma_list.h | 94 ++
    include/linux/autonuma_sched.h | 50 ++
    include/linux/autonuma_types.h | 130 +++
    include/linux/huge_mm.h | 6 +-
    include/linux/kthread.h | 1 +
    include/linux/memory_hotplug.h | 3 +-
    include/linux/mm_types.h | 5 +
    include/linux/mmzone.h | 25 +
    include/linux/page_autonuma.h | 59 ++
    include/linux/sched.h | 5 +-
    init/main.c | 2 +
    kernel/fork.c | 36 +-
    kernel/kthread.c | 23 +
    kernel/sched/Makefile | 1 +
    kernel/sched/core.c | 1 +
    kernel/sched/fair.c | 72 ++-
    kernel/sched/numa.c | 586 +++++++++++++
    kernel/sched/sched.h | 18 +
    mm/Kconfig | 13 +
    mm/Makefile | 1 +
    mm/autonuma.c | 1549 ++++++++++++++++++++++++++++++++++
    mm/autonuma_list.c | 167 ++++
    mm/huge_memory.c | 59 ++-
    mm/memory.c | 35 +-
    mm/memory_hotplug.c | 2 +-
    mm/mempolicy.c | 15 +-
    mm/mmu_context.c | 2 +
    mm/page_alloc.c | 5 +
    mm/page_autonuma.c | 236 ++++++
    mm/sparse.c | 126 +++-
    40 files changed, 3512 insertions(+), 48 deletions(-)
    create mode 100644 include/linux/autonuma.h
    create mode 100644 include/linux/autonuma_flags.h
    create mode 100644 include/linux/autonuma_list.h
    create mode 100644 include/linux/autonuma_sched.h
    create mode 100644 include/linux/autonuma_types.h
    create mode 100644 include/linux/page_autonuma.h
    create mode 100644 kernel/sched/numa.c
    create mode 100644 mm/autonuma.c
    create mode 100644 mm/autonuma_list.c
    create mode 100644 mm/page_autonuma.c

     \ /
      Last update: 2012-06-28 15:21    [W:0.046 / U:16.200 seconds]
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