• Hitoshi Mitake's avatar
    perf bench: Add feature that measures the performance of the... · ea7872b9
    Hitoshi Mitake authored
    perf bench: Add feature that measures the performance of the arch/x86/lib/memcpy_64.S memcpy routines via 'perf bench mem'
    
    This patch ports arch/x86/lib/memcpy_64.S to perf bench mem
    memcpy for benchmarking memcpy() in userland with tricky and
    dirty way.
    
    util/include/asm/cpufeature.h, util/include/asm/dwarf2.h, and
    util/include/linux/linkage.h are mostly dummy files with small
    wrappers, so that we are able to include memcpy_64.S
    unmodified.
    Signed-off-by: default avatarHitoshi Mitake <mitake@dcl.info.waseda.ac.jp>
    Cc: h.mitake@gmail.com
    Cc: Miao Xie <miaox@cn.fujitsu.com>
    Cc: Ma Ling <ling.ma@intel.com>
    Cc: Zhao Yakui <yakui.zhao@intel.com>
    Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
    Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
    Cc: Paul Mackerras <paulus@samba.org>
    Cc: Frederic Weisbecker <fweisbec@gmail.com>
    Cc: Steven Rostedt <rostedt@goodmis.org>
    Cc: Andi Kleen <andi@firstfloor.org>
    LKML-Reference: <1290668693-27068-2-git-send-email-mitake@dcl.info.waseda.ac.jp>
    Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
    ea7872b9
mem-memcpy-x86-64-asm-def.h 91 Bytes