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Date: Thu, 4 Jun 2009 13:09:31 GMT
From: tip-bot for Ingo Molnar <mingo@elte.hu>
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Subject: [tip:perfcounters/core] perf_counter tools: Build with native optimization
Message-ID: <tip-af794b94ae8a16fb4a9da6ce640c122efb44e2a0@git.kernel.org>
Git-Commit-ID: af794b94ae8a16fb4a9da6ce640c122efb44e2a0
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Commit-ID:  af794b94ae8a16fb4a9da6ce640c122efb44e2a0
Gitweb:     http://git.kernel.org/tip/af794b94ae8a16fb4a9da6ce640c122efb44e2a0
Author:     Ingo Molnar <mingo@elte.hu>
AuthorDate: Thu, 4 Jun 2009 13:58:13 +0200
Committer:  Ingo Molnar <mingo@elte.hu>
CommitDate: Thu, 4 Jun 2009 14:00:52 +0200

perf_counter tools: Build with native optimization

Build the tools with -march=native by default.

No measurable difference in speed though, compared to the
default, on a Nehalem testbox.

Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: Marcelo Tosatti <mtosatti@redhat.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>


---
 Documentation/perf_counter/Makefile |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/Documentation/perf_counter/Makefile b/Documentation/perf_counter/Makefile
index 005709b..414399c 100644
--- a/Documentation/perf_counter/Makefile
+++ b/Documentation/perf_counter/Makefile
@@ -159,7 +159,7 @@ uname_V := $(shell sh -c 'uname -v 2>/dev/null || echo not')
 
 # CFLAGS and LDFLAGS are for the users to override from the command line.
 
-CFLAGS = -ggdb3 -Wall -Werror -Wstrict-prototypes -Wmissing-declarations -Wmissing-prototypes -std=gnu99 -Wdeclaration-after-statement -O6
+CFLAGS = -ggdb3 -Wall -Werror -Wstrict-prototypes -Wmissing-declarations -Wmissing-prototypes -std=gnu99 -Wdeclaration-after-statement -O6 -march=native
 LDFLAGS = -lpthread -lrt -lelf
 ALL_CFLAGS = $(CFLAGS)
 ALL_LDFLAGS = $(LDFLAGS)