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diff --git a/qpid/cpp/src/qpid/broker/RateTracker.h b/qpid/cpp/src/qpid/broker/RateTracker.h
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+++ b/qpid/cpp/src/qpid/broker/RateTracker.h
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+#ifndef QPID_BROKER_RATETRACKER_H
+#define QPID_BROKER_RATETRACKER_H
+
+/*
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ *
+ */
+
+#include "qpid/sys/Time.h"
+
+namespace qpid {
+namespace broker {
+
+/**
+ * Simple rate tracker: represents some value that can be incremented,
+ * then can periodcially sample the rate of increments.
+ */
+class RateTracker
+{
+  public:
+    RateTracker();
+    /**
+     * Increments the count being tracked. Can be called concurrently
+     * with other calls to this operator as well as with calls to
+     * sampleRatePerSecond().
+     */
+    RateTracker& operator++();
+    /**
+     * Returns the rate of increments per second since last
+     * called. Calls to this method should be serialised, but can be
+     * called concurrently with the increment operator
+     */
+    double sampleRatePerSecond();
+  private:
+    volatile int32_t currentCount;
+    int32_t lastCount;
+    qpid::sys::AbsTime lastTime;
+};
+}} // namespace qpid::broker
+
+#endif  /*!QPID_BROKER_RATETRACKER_H*/