diff -r 4ebc2e2fb97c -r 71c04702a3d5 src/hotspot/share/gc/shared/workerDataArray.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/hotspot/share/gc/shared/workerDataArray.cpp	Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,81 @@
+/*
+ * Copyright (c) 2015, 2017, 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.
+ *
+ */
+
+#include "precompiled.hpp"
+#include "gc/shared/workerDataArray.inline.hpp"
+#include "utilities/ostream.hpp"
+
+template <>
+size_t WorkerDataArray<size_t>::uninitialized() {
+  return (size_t)-1;
+}
+
+template <>
+double WorkerDataArray<double>::uninitialized() {
+  return -1.0;
+}
+
+template <>
+void WorkerDataArray<double>::WDAPrinter::summary(outputStream* out, double min, double avg, double max, double diff, double sum, bool print_sum) {
+  out->print(" Min: %4.1lf, Avg: %4.1lf, Max: %4.1lf, Diff: %4.1lf", min * MILLIUNITS, avg * MILLIUNITS, max * MILLIUNITS, diff* MILLIUNITS);
+  if (print_sum) {
+    out->print(", Sum: %4.1lf", sum * MILLIUNITS);
+  }
+}
+
+template <>
+void WorkerDataArray<size_t>::WDAPrinter::summary(outputStream* out, size_t min, double avg, size_t max, size_t diff, size_t sum, bool print_sum) {
+  out->print(" Min: " SIZE_FORMAT ", Avg: %4.1lf, Max: " SIZE_FORMAT ", Diff: " SIZE_FORMAT, min, avg, max, diff);
+  if (print_sum) {
+    out->print(", Sum: " SIZE_FORMAT, sum);
+  }
+}
+
+template <>
+void WorkerDataArray<double>::WDAPrinter::details(const WorkerDataArray<double>* phase, outputStream* out) {
+  out->print("%-25s", "");
+  for (uint i = 0; i < phase->_length; ++i) {
+    double value = phase->get(i);
+    if (value != phase->uninitialized()) {
+      out->print(" %4.1lf", phase->get(i) * 1000.0);
+    } else {
+      out->print(" -");
+    }
+  }
+  out->cr();
+}
+
+template <>
+void WorkerDataArray<size_t>::WDAPrinter::details(const WorkerDataArray<size_t>* phase, outputStream* out) {
+  out->print("%-25s", "");
+  for (uint i = 0; i < phase->_length; ++i) {
+    size_t value = phase->get(i);
+    if (value != phase->uninitialized()) {
+      out->print("  " SIZE_FORMAT, phase->get(i));
+    } else {
+      out->print(" -");
+    }
+  }
+  out->cr();
+}