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| author | Ingo Molnar <mingo@elte.hu> | 2009-06-03 22:13:51 +0400 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-06-03 22:15:15 +0400 |
| commit | 095b3a6a030f7d4f24825ae93fc384b3d4b4fafa (patch) | |
| tree | 1663016b61f4d157a9e0e43aa799927d62498d27 /Documentation | |
| parent | 051cdc3c2d0e24443ac03aff03ee89807ec8c589 (diff) | |
| download | linux-095b3a6a030f7d4f24825ae93fc384b3d4b4fafa.tar.xz | |
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/Makefile | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/Documentation/perf_counter/Makefile b/Documentation/perf_counter/Makefile index eae88561233b..005709b7b19a 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) |