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1 /* |
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2 * Copyright (c) 2003, 2015, 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 #ifndef SHARE_VM_GC_SHARED_GCSTATS_HPP |
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26 #define SHARE_VM_GC_SHARED_GCSTATS_HPP |
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27 |
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28 #include "gc/shared/gcUtil.hpp" |
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29 |
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30 class GCStats : public CHeapObj<mtGC> { |
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31 protected: |
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32 // Avg amount promoted; used for avoiding promotion undo |
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33 // This class does not update deviations if the sample is zero. |
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34 AdaptivePaddedNoZeroDevAverage* _avg_promoted; |
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35 |
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36 public: |
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37 GCStats(); |
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38 |
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39 enum Name { |
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40 GCStatsKind, |
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41 CMSGCStatsKind |
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42 }; |
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43 |
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44 virtual Name kind() { |
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45 return GCStatsKind; |
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46 } |
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47 |
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48 AdaptivePaddedNoZeroDevAverage* avg_promoted() const { return _avg_promoted; } |
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49 |
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50 // Average in bytes |
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51 size_t average_promoted_in_bytes() const { |
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52 return (size_t)_avg_promoted->average(); |
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53 } |
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54 |
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55 // Padded average in bytes |
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56 size_t padded_average_promoted_in_bytes() const { |
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57 return (size_t)_avg_promoted->padded_average(); |
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58 } |
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59 }; |
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60 |
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61 class CMSGCStats : public GCStats { |
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62 public: |
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63 CMSGCStats(); |
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64 |
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65 virtual Name kind() { |
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66 return CMSGCStatsKind; |
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67 } |
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68 }; |
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69 |
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70 #endif // SHARE_VM_GC_SHARED_GCSTATS_HPP |