Eric Lee / smarc-ti-linux-kernel

22 Jun, 2005

1 commit

  • e7c8d5c99   [PATCH] node local per-cpu-pages ... Browse Code »

    This patch modifies the way pagesets in struct zone are managed.

    Each zone has a per-cpu array of pagesets. So any particular CPU has some
    memory in each zone structure which belongs to itself. Even if that CPU is
    not local to that zone.

    So the patch relocates the pagesets for each cpu to the node that is nearest
    to the cpu instead of allocating the pagesets in the (possibly remote) target
    zone. This means that the operations to manage pages on remote zone can be
    done with information available locally.

    We play a macro trick so that non-NUMA pmachines avoid the additional
    pointer chase on the page allocator fastpath.

    AIM7 benchmark on a 32 CPU SGI Altix

    w/o patches:
    Tasks jobs/min jti jobs/min/task real cpu
    1 484.68 100 484.6769 12.01 1.97 Fri Mar 25 11:01:42 2005
    100 27140.46 89 271.4046 21.44 148.71 Fri Mar 25 11:02:04 2005
    200 30792.02 82 153.9601 37.80 296.72 Fri Mar 25 11:02:42 2005
    300 32209.27 81 107.3642 54.21 451.34 Fri Mar 25 11:03:37 2005
    400 34962.83 78 87.4071 66.59 588.97 Fri Mar 25 11:04:44 2005
    500 31676.92 75 63.3538 91.87 742.71 Fri Mar 25 11:06:16 2005
    600 36032.69 73 60.0545 96.91 885.44 Fri Mar 25 11:07:54 2005
    700 35540.43 77 50.7720 114.63 1024.28 Fri Mar 25 11:09:49 2005
    800 33906.70 74 42.3834 137.32 1181.65 Fri Mar 25 11:12:06 2005
    900 34120.67 73 37.9119 153.51 1325.26 Fri Mar 25 11:14:41 2005
    1000 34802.37 74 34.8024 167.23 1465.26 Fri Mar 25 11:17:28 2005

    with slab API changes and pageset patch:

    Tasks jobs/min jti jobs/min/task real cpu
    1 485.00 100 485.0000 12.00 1.96 Fri Mar 25 11:46:18 2005
    100 28000.96 89 280.0096 20.79 150.45 Fri Mar 25 11:46:39 2005
    200 32285.80 79 161.4290 36.05 293.37 Fri Mar 25 11:47:16 2005
    300 40424.15 84 134.7472 43.19 438.42 Fri Mar 25 11:47:59 2005
    400 39155.01 79 97.8875 59.46 590.05 Fri Mar 25 11:48:59 2005
    500 37881.25 82 75.7625 76.82 730.19 Fri Mar 25 11:50:16 2005
    600 39083.14 78 65.1386 89.35 872.79 Fri Mar 25 11:51:46 2005
    700 38627.83 77 55.1826 105.47 1022.46 Fri Mar 25 11:53:32 2005
    800 39631.94 78 49.5399 117.48 1169.94 Fri Mar 25 11:55:30 2005
    900 36903.70 79 41.0041 141.94 1310.78 Fri Mar 25 11:57:53 2005
    1000 36201.23 77 36.2012 160.77 1458.31 Fri Mar 25 12:00:34 2005

    Signed-off-by: Christoph Lameter
    Signed-off-by: Shobhit Dayal
    Signed-off-by: Shai Fultheim
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Christoph Lameter
     

25 Apr, 2005

1 commit

  • 01424961e   [PATCH] mempolicy.c GFP fix ... Browse Code »

    zonelist_policy() forgot to mask non-zone bits from gfp when comparing
    zone number with policy_zone.

    ACKed-by: Andi Kleen
    Signed-off-by: Al Viro
    Signed-off-by: Linus Torvalds

    Al Viro
     

17 Apr, 2005

1 commit

  • 1da177e4c   Linux-2.6.12-rc2 ... Browse Code »
    212

    Initial git repository build. I'm not bothering with the full history,
    even though we have it. We can create a separate "historical" git
    archive of that later if we want to, and in the meantime it's about
    3.2GB when imported into git - space that would just make the early
    git days unnecessarily complicated, when we don't have a lot of good
    infrastructure for it.

    Let it rip!

    Linus Torvalds