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authorHitoshi Mitake <mitake@dcl.info.waseda.ac.jp>2010-11-25 02:04:53 -0500
committerIngo Molnar <mingo@elte.hu>2010-11-26 02:15:57 -0500
commitea7872b9d6a81101f6ba0ec141544a62fea35876 (patch)
tree569f13213fc6b1487b00cb403376b4fd70821302 /tools/perf/bench/mem-memcpy-x86-64-asm-def.h
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 'tools/perf/bench/mem-memcpy-x86-64-asm-def.h')
-rw-r--r--tools/perf/bench/mem-memcpy-x86-64-asm-def.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/tools/perf/bench/mem-memcpy-x86-64-asm-def.h b/tools/perf/bench/mem-memcpy-x86-64-asm-def.h
new file mode 100644
index 000000000000..d588b87696fc
--- /dev/null
+++ b/tools/perf/bench/mem-memcpy-x86-64-asm-def.h
@@ -0,0 +1,4 @@
1
2MEMCPY_FN(__memcpy,
3 "x86-64-unrolled",
4 "unrolled memcpy() in arch/x86/lib/memcpy_64.S")