diff --git a/[refs] b/[refs]
index 410e81154952..fbe43a520a1d 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 051cdc3c2d0e24443ac03aff03ee89807ec8c589
+refs/heads/master: 095b3a6a030f7d4f24825ae93fc384b3d4b4fafa
diff --git a/trunk/Documentation/perf_counter/Makefile b/trunk/Documentation/perf_counter/Makefile
index eae88561233b..005709b7b19a 100644
--- a/trunk/Documentation/perf_counter/Makefile
+++ b/trunk/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)