Mercurial > hg > graal-jvmci-8
annotate src/share/vm/gc_implementation/g1/g1ErgoVerbose.cpp @ 4097:dc467e8b2c5e
7112743: G1: Reduce overhead of marking closure during evacuation pauses
Summary: Parallelize the serial code that was used to mark objects reachable from survivor objects in the collection set. Some minor improvments in the timers used to track the freeing of the collection set along with some tweaks to PrintGCDetails.
Reviewed-by: tonyp, brutisso
author | johnc |
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date | Thu, 17 Nov 2011 12:40:15 -0800 |
parents | 20213c8a3c40 |
children | 41406797186b |
rev | line source |
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1 /* |
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2 * Copyright (c) 2011, 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 */ |
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24 |
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25 #include "precompiled.hpp" |
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26 #include "gc_implementation/g1/g1ErgoVerbose.hpp" |
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27 #include "utilities/ostream.hpp" |
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28 |
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29 ErgoLevel G1ErgoVerbose::_level; |
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30 bool G1ErgoVerbose::_enabled[ErgoHeuristicNum]; |
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31 |
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32 void G1ErgoVerbose::initialize() { |
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33 set_level(ErgoLow); |
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34 set_enabled(false); |
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35 } |
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36 |
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37 void G1ErgoVerbose::set_level(ErgoLevel level) { |
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38 _level = level; |
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39 } |
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40 |
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41 void G1ErgoVerbose::set_enabled(ErgoHeuristic n, bool enabled) { |
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42 assert(0 <= n && n < ErgoHeuristicNum, "pre-condition"); |
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43 _enabled[n] = enabled; |
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44 } |
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45 |
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46 void G1ErgoVerbose::set_enabled(bool enabled) { |
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47 for (int n = 0; n < ErgoHeuristicNum; n += 1) { |
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48 set_enabled((ErgoHeuristic) n, enabled); |
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49 } |
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50 } |
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51 |
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52 const char* G1ErgoVerbose::to_string(int tag) { |
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53 ErgoHeuristic n = extract_heuristic(tag); |
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54 switch (n) { |
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55 case ErgoHeapSizing: return "Heap Sizing"; |
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56 case ErgoCSetConstruction: return "CSet Construction"; |
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57 case ErgoConcCycles: return "Concurrent Cycles"; |
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58 case ErgoPartiallyYoungGCs: return "Partially-Young GCs"; |
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59 default: |
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60 ShouldNotReachHere(); |
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61 // Keep the Windows compiler happy |
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62 return NULL; |
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63 } |
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64 } |
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65 |