Messages in this thread |  | | | Subject | Re: [PATCH 1/2] perf bench: port memcpy_64.S to perf bench | | From | Peter Zijlstra <> | | Date | Fri, 29 Oct 2010 21:49:11 +0200 |
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On Sat, 2010-10-30 at 01:01 +0900, Hitoshi Mitake wrote: > This patch ports arch/x86/lib/memcpy_64.S to "perf bench mem". > When PERF_BENCH is defined at preprocessor level, > memcpy_64.S is preprocessed to includable form from the sources > under tools/perf for benchmarking programs. > > Signed-off-by: Hitoshi Mitake <mitake@dcl.info.waseda.ac.jp> > 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: Thomas Gleixner <tglx@linutronix.de> > Cc: H. Peter Anvin <hpa@zytor.com> > --- > arch/x86/lib/memcpy_64.S | 30 ++++++++++++++++++++++++++++++ > 1 files changed, 30 insertions(+), 0 deletions(-) > > diff --git a/arch/x86/lib/memcpy_64.S b/arch/x86/lib/memcpy_64.S > index 75ef61e..72c6dfe 100644 > --- a/arch/x86/lib/memcpy_64.S > +++ b/arch/x86/lib/memcpy_64.S > @@ -1,10 +1,23 @@ > /* Copyright 2002 Andi Kleen */ > > +/* > + * perf bench adoption by Hitoshi Mitake > + * PERF_BENCH means that this file is included from > + * the source files under tools/perf/ for benchmark programs. > + * > + * You don't have to care about PERF_BENCH when > + * you are working on the kernel. > + */ > + > +#ifndef PERF_BENCH
I don't like littering the actual kernel code with tools/perf/ ifdeffery..
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