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Issue 2311203002: Move kMaxRegularHeapObjectSize into globals (Closed)
Patch Set: Saving the file helps... Created 4 years, 3 months ago
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1 // Copyright 2012 the V8 project authors. All rights reserved. 1 // Copyright 2012 the V8 project authors. All rights reserved.
2 // Redistribution and use in source and binary forms, with or without 2 // Redistribution and use in source and binary forms, with or without
3 // modification, are permitted provided that the following conditions are 3 // modification, are permitted provided that the following conditions are
4 // met: 4 // met:
5 // 5 //
6 // * Redistributions of source code must retain the above copyright 6 // * Redistributions of source code must retain the above copyright
7 // notice, this list of conditions and the following disclaimer. 7 // notice, this list of conditions and the following disclaimer.
8 // * Redistributions in binary form must reproduce the above 8 // * Redistributions in binary form must reproduce the above
9 // copyright notice, this list of conditions and the following 9 // copyright notice, this list of conditions and the following
10 // disclaimer in the documentation and/or other materials provided 10 // disclaimer in the documentation and/or other materials provided
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213 CodeRange code_range(reinterpret_cast<Isolate*>(CcTest::isolate())); 213 CodeRange code_range(reinterpret_cast<Isolate*>(CcTest::isolate()));
214 code_range.SetUp(code_range_size); 214 code_range.SetUp(code_range_size);
215 size_t current_allocated = 0; 215 size_t current_allocated = 0;
216 size_t total_allocated = 0; 216 size_t total_allocated = 0;
217 List< ::Block> blocks(1000); 217 List< ::Block> blocks(1000);
218 218
219 while (total_allocated < 5 * code_range_size) { 219 while (total_allocated < 5 * code_range_size) {
220 if (current_allocated < code_range_size / 10) { 220 if (current_allocated < code_range_size / 10) {
221 // Allocate a block. 221 // Allocate a block.
222 // Geometrically distributed sizes, greater than 222 // Geometrically distributed sizes, greater than
223 // Page::kMaxRegularHeapObjectSize (which is greater than code page area). 223 // kMaxRegularHeapObjectSize (which is greater than code page area).
224 // TODO(gc): instead of using 3 use some contant based on code_range_size 224 // TODO(gc): instead of using 3 use some contant based on code_range_size
225 // kMaxRegularHeapObjectSize. 225 // kMaxRegularHeapObjectSize.
226 size_t requested = 226 size_t requested = (kMaxRegularHeapObjectSize << (Pseudorandom() % 3)) +
227 (Page::kMaxRegularHeapObjectSize << (Pseudorandom() % 3)) + 227 Pseudorandom() % 5000 + 1;
228 Pseudorandom() % 5000 + 1;
229 size_t allocated = 0; 228 size_t allocated = 0;
230 229
231 // The request size has to be at least 2 code guard pages larger than the 230 // The request size has to be at least 2 code guard pages larger than the
232 // actual commit size. 231 // actual commit size.
233 Address base = code_range.AllocateRawMemory( 232 Address base = code_range.AllocateRawMemory(
234 requested, requested - (2 * MemoryAllocator::CodePageGuardSize()), 233 requested, requested - (2 * MemoryAllocator::CodePageGuardSize()),
235 &allocated); 234 &allocated);
236 CHECK(base != NULL); 235 CHECK(base != NULL);
237 blocks.Add(::Block(base, static_cast<int>(allocated))); 236 blocks.Add(::Block(base, static_cast<int>(allocated)));
238 current_allocated += static_cast<int>(allocated); 237 current_allocated += static_cast<int>(allocated);
239 total_allocated += static_cast<int>(allocated); 238 total_allocated += static_cast<int>(allocated);
240 } else { 239 } else {
241 // Free a block. 240 // Free a block.
242 int index = Pseudorandom() % blocks.length(); 241 int index = Pseudorandom() % blocks.length();
243 code_range.FreeRawMemory(blocks[index].base, blocks[index].size); 242 code_range.FreeRawMemory(blocks[index].base, blocks[index].size);
244 current_allocated -= blocks[index].size; 243 current_allocated -= blocks[index].size;
245 if (index < blocks.length() - 1) { 244 if (index < blocks.length() - 1) {
246 blocks[index] = blocks.RemoveLast(); 245 blocks[index] = blocks.RemoveLast();
247 } else { 246 } else {
248 blocks.RemoveLast(); 247 blocks.RemoveLast();
249 } 248 }
250 } 249 }
251 } 250 }
252 } 251 }
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