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Blender V4.5
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Blender V4.5
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#include <algorithm>#include <atomic>#include <cassert>#include <iostream>#include <memory>#include <mutex>#include <vector>#include "MEM_guardedalloc.h"#include "mallocn_intern.hh"#include "../../source/blender/blenlib/BLI_strict_flags.h"Go to the source code of this file.
Functions | |
| static std::shared_ptr< Global > & | get_global_ptr () |
| static Global & | get_global () |
| static Local & | get_local_data () |
| static void | update_global_peak () |
| void | memory_usage_init () |
| void | memory_usage_block_alloc (const size_t size) |
| void | memory_usage_block_free (const size_t size) |
| size_t | memory_usage_block_num () |
| size_t | memory_usage_current () |
| size_t | memory_usage_peak () |
| void | memory_usage_peak_reset () |
Variables | |
| static std::atomic< bool > | use_local_counters = true |
| static constexpr int64_t | peak_update_threshold = 1024 * 1024 |
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Definition at line 119 of file memory_usage.cc.
References get_global(), and get_global_ptr().
Referenced by get_global(), memory_usage_block_alloc(), memory_usage_block_free(), memory_usage_block_num(), memory_usage_current(), memory_usage_peak(), memory_usage_peak_reset(), and update_global_peak().
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Definition at line 113 of file memory_usage.cc.
References get_global_ptr().
Referenced by get_global(), and get_global_ptr().
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Definition at line 124 of file memory_usage.cc.
References assert, and get_local_data().
Referenced by get_local_data(), memory_usage_block_alloc(), memory_usage_block_free(), and memory_usage_init().
| void memory_usage_block_alloc | ( | const size_t | size | ) |
Definition at line 188 of file memory_usage.cc.
References get_global(), get_local_data(), LIKELY, memory_usage_block_alloc(), peak_update_threshold, size(), update_global_peak(), and use_local_counters.
Referenced by MEM_lockfree_callocN(), MEM_lockfree_mallocN(), MEM_lockfree_mallocN_aligned(), and memory_usage_block_alloc().
| void memory_usage_block_free | ( | const size_t | size | ) |
Definition at line 212 of file memory_usage.cc.
References get_global(), get_local_data(), LIKELY, memory_usage_block_free(), size(), and use_local_counters.
Referenced by MEM_lockfree_freeN(), and memory_usage_block_free().
| size_t memory_usage_block_num | ( | void | ) |
Definition at line 229 of file memory_usage.cc.
References get_global(), lock, and memory_usage_block_num().
Referenced by MEM_lockfree_get_memory_blocks_in_use(), and memory_usage_block_num().
| size_t memory_usage_current | ( | void | ) |
Definition at line 242 of file memory_usage.cc.
References get_global(), lock, and memory_usage_current().
Referenced by MEM_lockfree_calloc_arrayN(), MEM_lockfree_callocN(), MEM_lockfree_get_memory_in_use(), MEM_lockfree_malloc_arrayN(), mem_lockfree_malloc_arrayN_aligned(), MEM_lockfree_mallocN(), MEM_lockfree_mallocN_aligned(), MEM_lockfree_printmemlist_stats(), memory_usage_current(), memory_usage_peak_reset(), and update_global_peak().
| void memory_usage_init | ( | void | ) |
Definition at line 182 of file memory_usage.cc.
References get_local_data(), and memory_usage_init().
Referenced by MEM_init_memleak_detection(), and memory_usage_init().
| size_t memory_usage_peak | ( | void | ) |
Get the approximate peak memory usage since the last call to memory_usage_peak_reset. This is approximate, because the peak usage is not updated after every allocation (see #peak_update_threshold).
In the worst case, the peak memory usage is underestimated by peak_update_threshold * #threads. After large allocations (larger than the threshold), the peak usage is always updated so those allocations will always be taken into account.
Definition at line 255 of file memory_usage.cc.
References get_global(), memory_usage_peak(), and update_global_peak().
Referenced by MEM_lockfree_get_peak_memory(), MEM_lockfree_printmemlist_stats(), and memory_usage_peak().
| void memory_usage_peak_reset | ( | void | ) |
Definition at line 262 of file memory_usage.cc.
References get_global(), memory_usage_current(), and memory_usage_peak_reset().
Referenced by MEM_lockfree_reset_peak_memory(), and memory_usage_peak_reset().
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Check if the current memory usage is higher than the peak and update it if yes.
Definition at line 166 of file memory_usage.cc.
References assert, get_global(), lock, memory_usage_current(), and update_global_peak().
Referenced by memory_usage_block_alloc(), memory_usage_peak(), and update_global_peak().
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When a thread allocated this amount of memory, the peak memory usage is updated. An alternative would be to update the global peak memory after every allocation, but that would cause much more overhead with little benefit.
Definition at line 111 of file memory_usage.cc.
Referenced by memory_usage_block_alloc().
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This is true for most of the lifetime of the program. Only when it starts exiting this becomes false indicating that global counters should be used for correctness.
Definition at line 105 of file memory_usage.cc.
Referenced by memory_usage_block_alloc(), and memory_usage_block_free().