From 2e6ef04aeb7d4df532166a7e2906adf7f9bac927 Mon Sep 17 00:00:00 2001
From: "Tim St. Clair" <stclair@google.com>
Date: Wed, 9 Dec 2015 17:20:34 -0800
Subject: [PATCH] Don't record the same stat point multiple times

---
 test/e2e/kubelet_stats.go | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/test/e2e/kubelet_stats.go b/test/e2e/kubelet_stats.go
index 847624ceb03..22ed9275201 100644
--- a/test/e2e/kubelet_stats.go
+++ b/test/e2e/kubelet_stats.go
@@ -607,8 +607,13 @@ func (r *resourceCollector) collectStats(oldStats map[string]*cadvisorapi.Contai
 			Logf("Missing info/stats for container %q on node %q", name, r.node)
 			return
 		}
-		if _, ok := oldStats[name]; ok {
-			r.buffers[name] = append(r.buffers[name], computeContainerResourceUsage(name, oldStats[name], info.Stats[0]))
+		if oldInfo, ok := oldStats[name]; ok {
+			newInfo := info.Stats[0]
+			if oldInfo.Timestamp.Equal(newInfo.Timestamp) {
+				// No change -> skip this stat.
+				continue
+			}
+			r.buffers[name] = append(r.buffers[name], computeContainerResourceUsage(name, oldInfo, newInfo))
 		}
 		oldStats[name] = info.Stats[0]
 	}