blender
/
blender
136
407
Fork 590
Code Issues 6.3k Pull Requests 779 Projects 19 Wiki Activity

WIP: Functions: new local allocator for better memory reuse and performance #104630

Draft
Jacques Lucke wants to merge 44 commits from JacquesLucke/blender:local-allocator into main
pull from: JacquesLucke/blender:local-allocator
merge into: blender:main

When changing the target branch, be careful to rebase the branch in your fork to match. See documentation.
Conversation 0 Commits 44 Files Changed 13 +12 -4
1 changed files with 12 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files
Showing only changes of commit 16724c4328 - Show all commits

16
source/blender/blenlib/BLI_local_allocator.hh
View File

@ -34,6 +34,7 @@ class LocalAllocatorPool : NonCopyable, NonMovable {
class LocalAllocator : NonCopyable, NonMovable {
private:
static constexpr int64_t s_alignment = 64;
static constexpr int64_t s_global_allocation_threshold = 5 * 1024 * 1024;
LocalAllocatorSet &owner_set_;
AlignedBuffer<256, 64> initial_buffer_;
LinearAllocator<> linear_allocator_;
@ -186,9 +187,12 @@ inline void *LocalAllocator::allocate(LocalAllocatorPool &pool)
buffer = pool.buffers.pop();
BLI_asan_unpoison(buffer, pool.element_size);
}
else {
else if (pool.element_size < s_global_allocation_threshold) {
buffer = linear_allocator_.allocate(pool.element_size, pool.alignment);
}
else {
buffer = MEM_mallocN(pool.element_size, __func__);
}
#ifdef BLI_LOCAL_ALLOCATOR_DEBUG_SIZES
{
@ -226,9 +230,13 @@ inline void LocalAllocator::deallocate(const void *buffer, LocalAllocatorPool &p
memset(const_cast<void *>(buffer), -1, pool.element_size);
#endif
BLI_asan_poison(buffer, pool.element_size);
pool.buffers.push(const_cast<void *>(buffer));
if (pool.element_size < s_global_allocation_threshold) {
BLI_asan_poison(buffer, pool.element_size);
pool.buffers.push(const_cast<void *>(buffer));
}
else {
MEM_freeN(const_cast<void *>(buffer));
}
}
inline LocalAllocatorPool &LocalAllocator::get_pool(const int64_t size, const int64_t alignment)