lkml.org 
[lkml]   [2010]   [Apr]   [8]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    SubjectRe: hackbench regression due to commit 9dfc6e68bfe6e
    From
    Date
    Le jeudi 08 avril 2010 à 09:05 +0800, Zhang, Yanmin a écrit :

    > > Do we have a user program to check actual L1 cache size of a machine ?
    > If there is no, it's easy to write it as kernel exports the cache stat by
    > /sys/devices/system/cpu/cpuXXX/cache/indexXXX/

    Yes, this is what advertizes my L1 cache having 64bytes lines, but I
    would like to check that in practice, this is not 128bytes...

    ./index0/type:Data
    ./index0/level:1
    ./index0/coherency_line_size:64
    ./index0/physical_line_partition:1
    ./index0/ways_of_associativity:8
    ./index0/number_of_sets:64
    ./index0/size:32K
    ./index0/shared_cpu_map:00000101
    ./index0/shared_cpu_list:0,8
    ./index1/type:Instruction
    ./index1/level:1
    ./index1/coherency_line_size:64
    ./index1/physical_line_partition:1
    ./index1/ways_of_associativity:4
    ./index1/number_of_sets:128
    ./index1/size:32K
    ./index1/shared_cpu_map:00000101
    ./index1/shared_cpu_list:0,8


    --
    To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
    the body of a message to majordomo@vger.kernel.org
    More majordomo info at http://vger.kernel.org/majordomo-info.html
    Please read the FAQ at http://www.tux.org/lkml/

    \
     
     \ /
      Last update: 2010-04-08 07:01    [W:0.023 / U:0.544 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site