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1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file |
2 // for details. All rights reserved. Use of this source code is governed by a | 2 // for details. All rights reserved. Use of this source code is governed by a |
3 // BSD-style license that can be found in the LICENSE file. | 3 // BSD-style license that can be found in the LICENSE file. |
4 | 4 |
5 #include "vm/pages.h" | 5 #include "vm/pages.h" |
6 | 6 |
7 #include "platform/assert.h" | 7 #include "platform/assert.h" |
8 #include "vm/compiler_stats.h" | 8 #include "vm/compiler_stats.h" |
9 #include "vm/gc_marker.h" | 9 #include "vm/gc_marker.h" |
10 #include "vm/gc_sweeper.h" | 10 #include "vm/gc_sweeper.h" |
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124 heap_(heap), | 124 heap_(heap), |
125 pages_(NULL), | 125 pages_(NULL), |
126 pages_tail_(NULL), | 126 pages_tail_(NULL), |
127 large_pages_(NULL), | 127 large_pages_(NULL), |
128 max_capacity_in_words_(max_capacity_in_words), | 128 max_capacity_in_words_(max_capacity_in_words), |
129 capacity_in_words_(0), | 129 capacity_in_words_(0), |
130 used_in_words_(0), | 130 used_in_words_(0), |
131 sweeping_(false), | 131 sweeping_(false), |
132 page_space_controller_(FLAG_heap_growth_space_ratio, | 132 page_space_controller_(FLAG_heap_growth_space_ratio, |
133 FLAG_heap_growth_rate, | 133 FLAG_heap_growth_rate, |
134 FLAG_heap_growth_time_ratio) { | 134 FLAG_heap_growth_time_ratio), |
| 135 gc_time_micros_(0), |
| 136 collections_(0) { |
135 } | 137 } |
136 | 138 |
137 | 139 |
138 PageSpace::~PageSpace() { | 140 PageSpace::~PageSpace() { |
139 FreePages(pages_); | 141 FreePages(pages_); |
140 FreePages(large_pages_); | 142 FreePages(large_pages_); |
141 } | 143 } |
142 | 144 |
143 | 145 |
144 intptr_t PageSpace::LargePageSizeInWordsFor(intptr_t size) { | 146 intptr_t PageSpace::LargePageSizeInWordsFor(intptr_t size) { |
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384 page = page->next(); | 386 page = page->next(); |
385 } | 387 } |
386 page = large_pages_; | 388 page = large_pages_; |
387 while (page != NULL) { | 389 while (page != NULL) { |
388 page->WriteProtect(read_only); | 390 page->WriteProtect(read_only); |
389 page = page->next(); | 391 page = page->next(); |
390 } | 392 } |
391 } | 393 } |
392 | 394 |
393 | 395 |
| 396 void PageSpace::PrintToJSONObject(JSONObject* object) { |
| 397 JSONObject space(object, "old"); |
| 398 space.AddProperty("type", "PageSpace"); |
| 399 space.AddProperty("id", "heaps/old"); |
| 400 space.AddProperty("name", "PageSpace"); |
| 401 space.AddProperty("user_name", "old"); |
| 402 space.AddProperty("collections", collections()); |
| 403 space.AddProperty("used", UsedInWords() * kWordSize); |
| 404 space.AddProperty("capacity", CapacityInWords() * kWordSize); |
| 405 space.AddProperty("time", RoundMicrosecondsToSeconds(gc_time_micros())); |
| 406 } |
| 407 |
| 408 |
394 bool PageSpace::ShouldCollectCode() { | 409 bool PageSpace::ShouldCollectCode() { |
395 // Try to collect code if enough time has passed since the last attempt. | 410 // Try to collect code if enough time has passed since the last attempt. |
396 const int64_t start = OS::GetCurrentTimeMicros(); | 411 const int64_t start = OS::GetCurrentTimeMicros(); |
397 const int64_t last_code_collection_in_us = | 412 const int64_t last_code_collection_in_us = |
398 page_space_controller_.last_code_collection_in_us(); | 413 page_space_controller_.last_code_collection_in_us(); |
399 | 414 |
400 if ((start - last_code_collection_in_us) > | 415 if ((start - last_code_collection_in_us) > |
401 FLAG_code_collection_interval_in_us) { | 416 FLAG_code_collection_interval_in_us) { |
402 if (FLAG_log_code_drop) { | 417 if (FLAG_log_code_drop) { |
403 OS::Print("Trying to detach code.\n"); | 418 OS::Print("Trying to detach code.\n"); |
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626 return 0; | 641 return 0; |
627 } else { | 642 } else { |
628 ASSERT(total_time >= gc_time); | 643 ASSERT(total_time >= gc_time); |
629 int result= static_cast<int>((static_cast<double>(gc_time) / | 644 int result= static_cast<int>((static_cast<double>(gc_time) / |
630 static_cast<double>(total_time)) * 100); | 645 static_cast<double>(total_time)) * 100); |
631 return result; | 646 return result; |
632 } | 647 } |
633 } | 648 } |
634 | 649 |
635 } // namespace dart | 650 } // namespace dart |
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