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annotate graal/com.oracle.graal.truffle/src/com/oracle/graal/truffle/CounterAndTimeBasedCompilationPolicy.java @ 18858:db0af0d8d623

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fixed JVM_GetGraalServiceImpls signature Contributed-by: Igor Ignatyev <igor.ignatyev@oracle.com>
author Doug Simon <doug.simon@oracle.com>
date Tue, 13 Jan 2015 13:12:01 +0100
parents a65c1032f400
children 05183a084a08
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1 /*
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2 * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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20 * or visit www.oracle.com if you need additional information or have any
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21 * questions.
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22 */
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23 package com.oracle.graal.truffle;
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24
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25 import static com.oracle.graal.truffle.TruffleCompilerOptions.*;
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26
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27 import com.oracle.truffle.api.*;
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28
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29 public class CounterAndTimeBasedCompilationPolicy extends CounterBasedCompilationPolicy {
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30
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31 @Override
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32 public boolean shouldCompile(CompilationProfile profile, CompilerOptions options) {
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33 if (super.shouldCompile(profile, options)) {
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34 long threshold = TruffleTimeThreshold.getValue();
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35
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36 if (options instanceof GraalCompilerOptions) {
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37 threshold = Math.max(threshold, ((GraalCompilerOptions) options).getMinTimeThreshold());
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38 }
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39
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40 long time = profile.getTimestamp();
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41 if (time == 0) {
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42 throw new AssertionError();
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43 }
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44 long timeElapsed = System.nanoTime() - time;
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45 if (timeElapsed > threshold * 1_000_000) {
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46 profile.deferCompilation();
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47 return false;
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48 }
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49 return true;
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50 } else {
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51 return false;
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52 }
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53 }
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54
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55 }