1 files changed, 4 insertions, 3 deletions

diff --git a/documentation/dev-manual/dev-manual-bsp-appendix.xml b/documentation/dev-manual/dev-manual-bsp-appendix.xml
index 7b8dc6ead5..aecb24f725 100644
--- a/documentation/dev-manual/dev-manual-bsp-appendix.xml
+++ b/documentation/dev-manual/dev-manual-bsp-appendix.xml
@@ -562,9 +562,10 @@
                 You should also be sure any other variables in which you are interested are set.  
                 Some variables to consider are <filename>BB_NUMBER_THREADS</filename>
                 and <filename>PARALLEL_MAKE</filename>, both of which can greatly reduce your build time 
-                if you are using a multi-threaded development system (e.g. values of 
-                <filename>8</filename> and <filename>j 6</filename>, respectively are optimal 
-                for a development machine that has four available cores).</para></listitem>
+                if your development system supports multiple cores.
+                For development systems that support multiple cores, a good rule of thumb is to set 
+                both the <filename>BB_NUMBER_THREADS</filename> and <filename>PARALLEL_MAKE</filename> 
+                variables to twice the number of cores your system supports.</para></listitem>
             <listitem><para>Update the <filename>bblayers.conf</filename> file so that it includes 
                 the path to your new BSP layer.  
                 In this example you need to include the pathname to <filename>meta-mymachine</filename>.