Mercurial > hg > graal-compiler
diff graal/com.oracle.max.base/src/com/sun/max/profile/GlobalMetrics.java @ 3733:e233f5660da4
Added Java files from Maxine project.
author | Thomas Wuerthinger <thomas.wuerthinger@oracle.com> |
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date | Sat, 17 Dec 2011 19:59:18 +0100 |
parents | |
children | bc8527f3071c |
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--- /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(); + } + +}