svn commit: r1183748 - /hbase/trunk/src/docbkx/performance.xml

[dm...@apache.org]

Author: dmeil
Date: Sat Oct 15 22:37:18 2011
New Revision: 1183748

URL: http://svn.apache.org/viewvc?rev=1183748&view=rev
Log:
HBASE-4597 performance.xml ec2 section

Modified:
    hbase/trunk/src/docbkx/performance.xml

Modified: hbase/trunk/src/docbkx/performance.xml
URL: http://svn.apache.org/viewvc/hbase/trunk/src/docbkx/performance.xml?rev=1183748&r1=1183747&r2=1183748&view=diff
==============================================================================
--- hbase/trunk/src/docbkx/performance.xml (original)
+++ hbase/trunk/src/docbkx/performance.xml Sat Oct 15 22:37:18 2011
@@ -409,4 +409,15 @@ htable.close();</programlisting></para>
        </para>
      </section>
   </section>  <!--  deleting -->
+  
+  <section xml:id="perf.ec2"><title>Amazon EC2</title>
+  <para>Performance questions are common on Amazon EC2 environments because it is is a shared environment.  You will
+  not see the same throughput as a dedicated server.  In terms of running tests on EC2, run them several times for the same
+  reason (i.e., it's a shared environment and you don't know what else is happening on the server).
+  </para>
+  <para>If you are running on EC2 and post performance questions on the dist-list, please state this fact up-front that
+   because EC2 issues are practically a separate class of performance issues.
+  
+  </para>
+  </section>
 </chapter>