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1 /* |
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2 * Copyright (c) 2019, SAP SE. All rights reserved. |
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3 * Copyright (c) 2019, Oracle and/or its affiliates. All rights reserved. |
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4 |
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5 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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6 * |
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7 * This code is free software; you can redistribute it and/or modify it |
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8 * under the terms of the GNU General Public License version 2 only, as |
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9 * published by the Free Software Foundation. |
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10 * |
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11 * This code is distributed in the hope that it will be useful, but WITHOUT |
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12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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14 * version 2 for more details (a copy is included in the LICENSE file that |
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15 * accompanied this code). |
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16 * |
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17 * You should have received a copy of the GNU General Public License version |
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18 * 2 along with this work; if not, write to the Free Software Foundation, |
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19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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20 * |
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21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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22 * or visit www.oracle.com if you need additional information or have any |
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23 * questions. |
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24 * |
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25 */ |
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26 #include <memory/metaspace/settings.hpp> |
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27 #include "precompiled.hpp" |
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28 #include "memory/metaspace/chunkLevel.hpp" |
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29 #include "utilities/debug.hpp" |
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30 #include "utilities/globalDefinitions.hpp" |
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31 #include "utilities/ostream.hpp" |
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32 |
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33 namespace metaspace { |
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34 |
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35 chklvl_t chklvl::level_fitting_word_size(size_t word_size) { |
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36 |
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37 assert(chklvl::MAX_CHUNK_WORD_SIZE >= word_size, |
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38 "too large allocation size (" SIZE_FORMAT ")", word_size * BytesPerWord); |
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39 |
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40 // TODO: This can be done much better. |
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41 chklvl_t l = chklvl::HIGHEST_CHUNK_LEVEL; |
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42 while (l >= chklvl::LOWEST_CHUNK_LEVEL && |
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43 word_size > chklvl::word_size_for_level(l)) { |
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44 l --; |
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45 } |
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46 |
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47 return l; |
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48 } |
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49 |
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50 void chklvl::print_chunk_size(outputStream* st, chklvl_t lvl) { |
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51 if (chklvl::is_valid_level(lvl)) { |
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52 const size_t s = chklvl::word_size_for_level(lvl) * BytesPerWord; |
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53 if (s < 1 * M) { |
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54 st->print("%3uk", (unsigned)(s / K)); |
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55 } else { |
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56 st->print("%3um", (unsigned)(s / M)); |
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57 } |
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58 } else { |
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59 st->print("?-?"); |
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60 } |
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61 |
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62 } |
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63 |
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64 } // namespace metaspace |
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65 |
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66 |