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authorHitoshi Mitake <mitake@dcl.info.waseda.ac.jp>2010-11-25 16:04:53 +0900
committerIngo Molnar <mingo@elte.hu>2010-11-26 08:15:57 +0100
commitea7872b9d6a81101f6ba0ec141544a62fea35876 (patch)
tree569f13213fc6b1487b00cb403376b4fd70821302 /kernel/sysctl.c
parent49ce8fc651794878189fd5f273228832cdfb5be9 (diff)
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: Hitoshi 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: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel/sysctl.c')
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