--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/graal/com.oracle.max.base/src/com/sun/max/profile/GlobalMetrics.java	Sat Dec 17 19:59:18 2011 +0100
@@ -0,0 +1,161 @@
+/*
+ * Copyright (c) 2007, 2011, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+package com.sun.max.profile;
+
+import java.io.*;
+import java.util.*;
+import java.util.Arrays;
+
+import com.sun.max.*;
+import com.sun.max.profile.Metrics.*;
+import com.sun.max.util.timer.*;
+
+public class GlobalMetrics {
+
+    static class EntryComparator implements Comparator<Map.Entry<String, Metric>> {
+        public int compare(Map.Entry<String, Metric> a, Map.Entry<String, Metric> b) {
+            return String.CASE_INSENSITIVE_ORDER.compare(a.getKey(), b.getKey());
+        }
+    }
+
+    static class MetricSet<T extends Metric> {
+        private final Class<T> clazz;
+        private final Map<String, T> metrics = new HashMap<String, T>();
+
+        MetricSet(Class<T> mClass) {
+            clazz = mClass;
+        }
+    }
+
+    protected static final Map<Class<? extends Metric>, MetricSet> metricSets = new HashMap<Class<? extends Metric>, MetricSet>();
+
+    /**
+     * This method allocates a new counter with the specified name and adds it to the global
+     * metric list. If a previous metric with the same name exists, it will return a reference
+     * to the first one created.
+     * @param name the name of the metric for which to create a counter
+     * @return a reference to a code {@code Counter} object which can be incremented and accumulated
+     */
+    public static Metrics.Counter newCounter(String name) {
+        if (name == null) {
+            return new Metrics.Counter();
+        }
+        return getCounter(name);
+    }
+
+    public static TimerMetric newTimer(String name, Clock clock) {
+        if (name == null) {
+            return new TimerMetric(new MultiThreadTimer(clock));
+        }
+        return getTimer(name, clock);
+    }
+
+    public static Metrics.Rate newRate(String name, Metrics.Counter count, Clock clock) {
+        if (name == null) {
+            return new Rate(count, clock);
+        }
+        return getRate(name, count, clock);
+    }
+
+    static synchronized Metrics.Counter getCounter(String name) {
+        Metrics.Counter counter = getMetric(name, Metrics.Counter.class);
+        if (counter == null) {
+            counter = setMetric(name, Metrics.Counter.class, new Metrics.Counter());
+        }
+        return counter;
+    }
+
+    static synchronized TimerMetric getTimer(String name, Clock clock) {
+        TimerMetric timer = getMetric(name, TimerMetric.class);
+        if (timer == null) {
+            timer = setMetric(name, TimerMetric.class, new TimerMetric(new MultiThreadTimer(clock)));
+        }
+        return timer;
+    }
+
+    static synchronized Metrics.Rate getRate(String name, Metrics.Counter count, Clock clock) {
+        Metrics.Rate rate = getMetric(name, Metrics.Rate.class);
+        if (rate == null) {
+            rate = setMetric(name, Metrics.Rate.class, new Metrics.Rate(count, clock));
+        }
+        return rate;
+    }
+
+    public static <T extends Metric> T getMetric(String name, Class<T> mClass) {
+        final MetricSet<T> metricSet = Utils.cast(metricSets.get(mClass));
+        if (metricSet != null) {
+            final T metric = metricSet.metrics.get(name);
+            if (metric != null) {
+                return metric;
+            }
+        }
+        return null;
+    }
+
+    public static <T extends Metric> T setMetric(String name, Class<T> mClass, T metric) {
+        MetricSet<T> metricSet = Utils.cast(metricSets.get(mClass));
+        if (metricSet == null) {
+            metricSet = new MetricSet<T>(mClass);
+            metricSets.put(mClass, metricSet);
+        }
+        metricSet.metrics.put(name, metric);
+        return metric;
+    }
+
+    /**
+     * Resets of all the currently registered metrics.
+     */
+    public static synchronized void reset() {
+        for (MetricSet<? extends Metric> metricSet : metricSets.values()) {
+            for (Metric metric : metricSet.metrics.values()) {
+                metric.reset();
+            }
+        }
+    }
+
+    /**
+     * This method prints a report of all the metrics that have been created during this
+     * execution run.
+     * @param stream the print stream to which to print the report
+     */
+    public static synchronized void report(PrintStream stream) {
+        final Map<String, Metric> allMetrics = new HashMap<String, Metric>();
+        for (MetricSet<? extends Metric> metricSet : metricSets.values()) {
+            allMetrics.putAll(metricSet.metrics);
+        }
+
+        Map.Entry<String, Metric>[] array = Utils.cast(new Map.Entry[allMetrics.size()]);
+        array = allMetrics.entrySet().toArray(array);
+        Arrays.sort(array, new GlobalMetrics.EntryComparator());
+        for (Map.Entry<String, Metric> entry : array) {
+            if (entry.getKey().length() > Metrics.longestMetricName) {
+                Metrics.longestMetricName = entry.getKey().length();
+            }
+        }
+        for (Map.Entry<String, Metric> entry : array) {
+            entry.getValue().report(entry.getKey(), stream);
+        }
+        stream.flush();
+    }
+
+}