diff --git a/Makefile.in b/Makefile.in
index aa41730528a..28539a45372 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -387,7 +387,7 @@ MAKEINFO = @MAKEINFO@
 EXPECT = @EXPECT@
 RUNTEST = @RUNTEST@
 
-AUTO_PROFILE = gcc-auto-profile -c 1000000
+AUTO_PROFILE = gcc-auto-profile -c 10000000
 
 # This just becomes part of the MAKEINFO definition passed down to
 # sub-makes.  It lets flags be given on the command line while still
diff --git a/Makefile.tpl b/Makefile.tpl
index 1ab65ac8ec4..126296fb49a 100644
--- a/Makefile.tpl
+++ b/Makefile.tpl
@@ -390,7 +390,7 @@ MAKEINFO = @MAKEINFO@
 EXPECT = @EXPECT@
 RUNTEST = @RUNTEST@
 
-AUTO_PROFILE = gcc-auto-profile -c 1000000
+AUTO_PROFILE = gcc-auto-profile -c 10000000
 
 # This just becomes part of the MAKEINFO definition passed down to
 # sub-makes.  It lets flags be given on the command line while still
diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index aea7143dc91..03667c8d97f 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2019-01-14  Andi Kleen  <ak@linux.intel.com>
+
+	* Makefile.in: Lower autofdo sampling rate by 10x.
+	* Makefile.tpl: Dito.
+
 2019-01-14  Tom Honermann  <tom@honermann.net>
 
 	* defaults.h: Define CHAR8_TYPE.