--- /dev/null	2017-01-22 10:16:57.869617664 -0800
+++ new/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.debug/src/org/graalvm/compiler/debug/internal/method/MethodMetricsPrinter.java	2017-02-15 16:58:29.020289960 -0800
@@ -0,0 +1,141 @@
+/*
+ * Copyright (c) 2015, 2016, 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 org.graalvm.compiler.debug.internal.method;
+
+import java.io.File;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.OutputStream;
+import java.io.PrintStream;
+import java.util.Arrays;
+import java.util.Collection;
+import java.util.List;
+
+import org.graalvm.compiler.debug.DebugMethodMetrics;
+import org.graalvm.compiler.debug.TTY;
+import org.graalvm.compiler.options.Option;
+import org.graalvm.compiler.options.OptionType;
+import org.graalvm.compiler.options.OptionValue;
+
+/**
+ * Interface for printing a collection of method metrics (e.g. during shutdown).
+ */
+public interface MethodMetricsPrinter {
+
+    class Options {
+        // @formatter:off
+        @Option(help = "Dump method metrics to stdout on shutdown.", type = OptionType.Debug)
+        public static final OptionValue<Boolean> MethodMeterPrintAscii = new OptionValue<>(false);
+        @Option(help = "Dump method metrics to the given file in CSV format on shutdown.", type = OptionType.Debug)
+        public static final OptionValue<String> MethodMeterFile = new OptionValue<>(null);
+        // @formatter:on
+    }
+
+    static boolean methodMetricsDumpingEnabled() {
+        return MethodMetricsPrinter.Options.MethodMeterPrintAscii.getValue() || MethodMetricsPrinter.Options.MethodMeterFile.getValue() != null;
+    }
+
+    /**
+     * Prints the metrics to a destination specified by the implementor of this interface.
+     *
+     * @param metrics the set of collected method metrics during execution as defined by
+     *            {@link DebugMethodMetrics}.
+     */
+    void printMethodMetrics(Collection<DebugMethodMetrics> metrics);
+
+    class MethodMetricsASCIIPrinter implements MethodMetricsPrinter {
+        private final OutputStream out;
+
+        public MethodMetricsASCIIPrinter(OutputStream out) {
+            this.out = out;
+        }
+
+        @Override
+        public void printMethodMetrics(Collection<DebugMethodMetrics> metrics) {
+            PrintStream p = new PrintStream(out);
+            for (DebugMethodMetrics m : metrics) {
+                ((MethodMetricsImpl) m).dumpASCII(p);
+                p.println();
+            }
+        }
+
+    }
+
+    class MethodMetricsCompositePrinter implements MethodMetricsPrinter {
+        private final List<MethodMetricsPrinter> printers;
+
+        public MethodMetricsCompositePrinter(MethodMetricsPrinter... p) {
+            printers = Arrays.asList(p);
+        }
+
+        public void registerPrinter(MethodMetricsPrinter printer) {
+            printers.add(printer);
+        }
+
+        public void unregisterPrinter(MethodMetricsPrinter printer) {
+            printers.remove(printer);
+        }
+
+        @Override
+        public void printMethodMetrics(Collection<DebugMethodMetrics> metrics) {
+            for (MethodMetricsPrinter p : printers) {
+                p.printMethodMetrics(metrics);
+            }
+        }
+
+    }
+
+    class MethodMetricsCSVFilePrinter implements MethodMetricsPrinter {
+        private FileOutputStream fw;
+
+        public MethodMetricsCSVFilePrinter() {
+            try {
+                fw = new FileOutputStream(new File(Options.MethodMeterFile.getValue()));
+            } catch (IOException e) {
+                TTY.println("Cannot create file %s for method metrics dumping:%s", Options.MethodMeterFile.getValue(), e);
+                throw new Error(e);
+            }
+        }
+
+        @Override
+        public void printMethodMetrics(Collection<DebugMethodMetrics> metrics) {
+            // mm printing creates simple (R-parsable) csv files in long data format
+            if (fw != null && metrics != null) {
+                try (PrintStream p = new PrintStream(fw)) {
+                    for (DebugMethodMetrics m : metrics) {
+                        if (m instanceof MethodMetricsImpl) {
+                            ((MethodMetricsImpl) m).dumpCSV(p);
+                            p.println();
+                        }
+                    }
+                }
+                try {
+                    fw.close();
+                } catch (IOException e) {
+                    throw new Error(e);
+                }
+            }
+        }
+
+    }
+}