author | stuefe |
Fri, 01 Nov 2019 10:28:15 +0100 | |
branch | stuefe-new-metaspace-branch |
changeset 59155 | b537e6386306 |
parent 59135 | 84464aa83a29 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2019, SAP SE. All rights reserved. |
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* Copyright (c) 2019, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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*/ |
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|
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|
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#include "precompiled.hpp" |
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|
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#include "metaspaceTestsCommon.hpp" |
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|
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#include "utilities/globalDefinitions.hpp" |
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|
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#ifdef _WIN32 |
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#include <psapi.h> |
|
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#endif |
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|
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void calc_random_range(size_t outer_range_len, range_t* out, size_t alignment) { |
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|
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assert(is_aligned(outer_range_len, alignment), "bad input range"); |
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assert(outer_range_len > 0, "no zero range"); |
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|
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size_t l1 = os::random() % outer_range_len; |
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size_t l2 = os::random() % outer_range_len; |
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if (l1 > l2) { |
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size_t l = l1; |
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l1 = l2; |
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l2 = l; |
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} |
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l1 = align_down(l1, alignment); |
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l2 = align_up(l2, alignment); |
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|
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// disallow zero range |
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if (l2 == l1) { |
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if (l1 >= alignment) { |
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l1 -= alignment; |
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} else { |
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assert(l2 <= outer_range_len - alignment, "Sanity"); |
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l2 += alignment; |
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} |
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} |
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|
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assert(l2 - l1 > 0 && l2 - l1 <= outer_range_len, "Sanity " SIZE_FORMAT "-" SIZE_FORMAT ".", l1, l2); |
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assert(is_aligned(l1, alignment), "Sanity"); |
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assert(is_aligned(l2, alignment), "Sanity"); |
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|
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out->from = l1; out->to = l2; |
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|
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} |
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|
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void calc_random_address_range(const address_range_t* outer_range, address_range_t* out, size_t alignment) { |
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range_t r; |
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calc_random_range(outer_range->word_size, &r, alignment); |
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|
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out->p = outer_range->p + r.from; |
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out->word_size = r.from - r.to; |
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} |
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|
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size_t get_workingset_size() { |
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#if defined(_WIN32) |
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PROCESS_MEMORY_COUNTERS info; |
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GetProcessMemoryInfo(GetCurrentProcess(), &info, sizeof(info)); |
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return (size_t)info.WorkingSetSize; |
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#elif defined(LINUX) |
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long result = 0L; |
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FILE* f = fopen("/proc/self/statm", "r"); |
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if (f == NULL) { |
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return 0; |
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} |
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// Second number in statm, in num of pages |
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if (fscanf(f, "%*s%ld", &result) != 1 ) { |
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fclose(f); |
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return 0; |
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} |
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fclose(f); |
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return (size_t)result * (size_t)os::vm_page_size(); |
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#else |
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return 0L; |
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#endif |
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} |
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void zap_range(MetaWord* p, size_t word_size) { |
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for (MetaWord* pzap = p; pzap < p + word_size; pzap += os::vm_page_size() / BytesPerWord) { |
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*pzap = (MetaWord)0xFEFEFEFE; |
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} |
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} |
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|
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// Writes a uniqe pattern to p |
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void mark_address(MetaWord* p, uintx pattern) { |
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MetaWord x = (MetaWord)((uintx) p ^ pattern); |
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*p = x; |
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} |
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|
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// checks pattern at address |
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bool check_marked_address(const MetaWord* p, uintx pattern) { |
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MetaWord x = (MetaWord)((uintx) p ^ pattern); |
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EXPECT_EQ(*p, x); |
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return *p == x; |
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} |
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|
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// "fill_range_with_pattern" fills a range of heap words with pointers to itself. |
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// |
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// The idea is to fill a memory range with a pattern which is both marked clearly to the caller |
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// and cannot be moved without becoming invalid. |
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// |
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// The filled range can be checked with check_range_for_pattern. One also can only check |
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// a sub range of the original range. |
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void fill_range_with_pattern(MetaWord* p, uintx pattern, size_t word_size) { |
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assert(word_size > 0 && p != NULL, "sanity"); |
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for (MetaWord* p2 = p; p2 < p + word_size; p2 ++) { |
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mark_address(p2, pattern); |
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} |
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} |
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Initial changes for new metaspace. Only tested for Linux x64.
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|
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Initial changes for new metaspace. Only tested for Linux x64.
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bool check_range_for_pattern(const MetaWord* p, uintx pattern, size_t word_size) { |
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assert(word_size > 0 && p != NULL, "sanity"); |
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const MetaWord* p2 = p; |
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while (p2 < p + word_size && check_marked_address(p2, pattern)) { |
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p2 ++; |
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} |
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Initial changes for new metaspace. Only tested for Linux x64.
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return p2 < p + word_size; |
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} |
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Initial changes for new metaspace. Only tested for Linux x64.
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145 |
|
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Initial changes for new metaspace. Only tested for Linux x64.
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146 |
|
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Initial changes for new metaspace. Only tested for Linux x64.
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// Similar to fill_range_with_pattern, but only marks start and end. This is optimized for cases |
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// where fill_range_with_pattern just is too slow. |
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// Use check_marked_range to check the range. In contrast to check_range_for_pattern, only the original |
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// range can be checked. |
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void mark_range(MetaWord* p, uintx pattern, size_t word_size) { |
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assert(word_size > 0 && p != NULL, "sanity"); |
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mark_address(p, pattern); |
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mark_address(p + word_size - 1, pattern); |
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Initial changes for new metaspace. Only tested for Linux x64.
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} |
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Initial changes for new metaspace. Only tested for Linux x64.
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156 |
|
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Initial changes for new metaspace. Only tested for Linux x64.
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bool check_marked_range(const MetaWord* p, uintx pattern, size_t word_size) { |
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assert(word_size > 0 && p != NULL, "sanity"); |
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return check_marked_address(p, pattern) && check_marked_address(p + word_size - 1, pattern); |
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} |
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161 |
|
59155
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LeftOverBins as an optional replacement of free block dictionary which is rather ineffective
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162 |
void mark_range(MetaWord* p, size_t word_size) { |
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LeftOverBins as an optional replacement of free block dictionary which is rather ineffective
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assert(word_size > 0 && p != NULL, "sanity"); |
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uintx pattern = (uintx)p2i(p); |
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mark_range(p, pattern, word_size); |
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LeftOverBins as an optional replacement of free block dictionary which is rather ineffective
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166 |
} |
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LeftOverBins as an optional replacement of free block dictionary which is rather ineffective
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|
167 |
|
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LeftOverBins as an optional replacement of free block dictionary which is rather ineffective
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168 |
bool check_marked_range(const MetaWord* p, size_t word_size) { |
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LeftOverBins as an optional replacement of free block dictionary which is rather ineffective
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169 |
uintx pattern = (uintx)p2i(p); |
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LeftOverBins as an optional replacement of free block dictionary which is rather ineffective
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return check_marked_range(p, pattern, word_size); |
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LeftOverBins as an optional replacement of free block dictionary which is rather ineffective
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171 |
} |
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LeftOverBins as an optional replacement of free block dictionary which is rather ineffective
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172 |
|
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LeftOverBins as an optional replacement of free block dictionary which is rather ineffective
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173 |