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authorIngo Molnar <mingo@elte.hu>2009-06-03 20:13:51 +0200
committerIngo Molnar <mingo@elte.hu>2009-06-03 20:15:15 +0200
commit095b3a6a030f7d4f24825ae93fc384b3d4b4fafa (patch)
tree1663016b61f4d157a9e0e43aa799927d62498d27 /Documentation
parent051cdc3c2d0e24443ac03aff03ee89807ec8c589 (diff)
perf_counter tools: Optimize harder
Use -O6 to build the tools. Before: 12387507370 instructions # 3121.653 M/sec After: 6244894971 instructions # 3458.437 M/sec Almost twice as fast! 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>
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/perf_counter/Makefile2
1 files changed, 1 insertions, 1 deletions
diff --git a/Documentation/perf_counter/Makefile b/Documentation/perf_counter/Makefile
index eae88561233..005709b7b19 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
+CFLAGS = -ggdb3 -Wall -Werror -Wstrict-prototypes -Wmissing-declarations -Wmissing-prototypes -std=gnu99 -Wdeclaration-after-statement -O6
LDFLAGS = -lpthread -lrt -lelf
ALL_CFLAGS = $(CFLAGS)
ALL_LDFLAGS = $(LDFLAGS)