From 8adbd7f62e4e553d8a56944a2eeb6c3df6fd5c19 Mon Sep 17 00:00:00 2001
From: Doug Meil <dmeil@apache.org>
Date: Sat, 15 Oct 2011 22:37:18 +0000
Subject: [PATCH] HBASE-4597 performance.xml ec2 section

git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1183748 13f79535-47bb-0310-9956-ffa450edef68
---
 src/docbkx/performance.xml | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/src/docbkx/performance.xml b/src/docbkx/performance.xml
index 1a48858368c..6c0a0bbd33c 100644
--- a/src/docbkx/performance.xml
+++ b/src/docbkx/performance.xml
@@ -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>