Changes in chapter04/aboutsbus.xml [a0a803c:4990283]

File:

• chapter04/aboutsbus.xml (modified) (1 diff)

chapter04/aboutsbus.xml

@@ -38 +38 @@
 
   <note>
+    <para>For many modern systems with multiple processors (or cores) the
+    compilation time for a package can be reduced by performing a "parallel
+    make" by either setting an environment variable or telling the
+    <command>make</command> program how many processors are available.  For
+    instance, an Intel i5-6500 CPU can support four simultaneous processes with:</para>
+
+    <screen role="nodump"><userinput>export MAKEFLAGS='-j4'</userinput></screen>
+
+    <para>or by building with:</para>
+
+    <screen role="nodump"><userinput>make -j4</userinput></screen>
+
     <para>When multiple processors are used in this way, the SBU units in the
     book will vary even more than they normally would.  In some cases, the make