diff --git a/web/ons-demo/RELEASE_NOTES.txt b/web/ons-demo/RELEASE_NOTES.txt
index 08e6ba0..c0e729f 100644
--- a/web/ons-demo/RELEASE_NOTES.txt
+++ b/web/ons-demo/RELEASE_NOTES.txt
@@ -1,3 +1,7 @@
+** April 8, 2013 **
+- merge from master
+- fix gradually increasing latency of iperf data display
+
 ** April 4, 2013 **
 - denser iperf display
 - don't pop alert on command error response. just log it
diff --git a/web/ons-demo/js/app.js b/web/ons-demo/js/app.js
index 7d02d66..6fa1bd3 100644
--- a/web/ons-demo/js/app.js
+++ b/web/ons-demo/js/app.js
@@ -309,10 +309,15 @@
 
 					var iperfData = JSON.parse(data);
 
-				console.log(iperfData.timestamp);
+//				console.log(iperfData.timestamp);
 
 					// if the data is fresh
 					if (flow.iperfData.timestamp && iperfData.timestamp != flow.iperfData.timestamp) {
+
+						while (flow.iperfData.samples.length > pointsToDisplay + iperfData.samples.length) {
+							flow.iperfData.samples.shift();
+						}
+
 						iperfData.samples.forEach(function (s) {
 							flow.iperfData.samples.push(s);
 						});