xinyiZzz commented on PR #11040:
URL: https://github.com/apache/doris/pull/11040#issuecomment-1190122477
refer this
diff --git a/be/src/runtime/memory/chunk_allocator.cpp
b/be/src/runtime/memory/chunk_allocator.cpp
index 6db98ecc9..e69b4c2e8 100644
--- a/be/src/runtime/memory/chunk_allocator.cpp
+++ b/be/src/runtime/memory/chunk_allocator.cpp
@@ -136,6 +136,8 @@ ChunkAllocator::ChunkAllocator(size_t reserve_limit)
}
Status ChunkAllocator::allocate(size_t size, Chunk* chunk) {
+ DCHECK(BitUtil::RoundUpToPowerOfTwo(size) == size);
+
// fast path: allocate from current core arena
int core_id = CpuInfo::get_current_core();
chunk->size = size;
diff --git a/be/src/runtime/memory/chunk_allocator.h
b/be/src/runtime/memory/chunk_allocator.h
index 43bd88444..fef62e6db 100644
--- a/be/src/runtime/memory/chunk_allocator.h
+++ b/be/src/runtime/memory/chunk_allocator.h
@@ -62,11 +62,7 @@ public:
ChunkAllocator(size_t reserve_limit);
- // Allocate a Chunk with a power-of-two length "size".
- // Return true if success and allocated chunk is saved in "chunk".
- // Otherwise return false.
- Status allocate(size_t size, Chunk* Chunk);
-
+ // Up size to 2^n length, allocate a chunk.
Status allocate_align(size_t size, Chunk* chunk);
// Free chunk allocated from this allocator
@@ -78,6 +74,14 @@ public:
// otherwise the capacity of chunk allocator will be wrong.
void free(uint8_t* data, size_t size);
+private:
+ friend class MemPool;
+
+ // Allocate a Chunk with a power-of-two length "size".
+ // Return true if success and allocated chunk is saved in "chunk".
+ // Otherwise return false.
+ Status allocate(size_t size, Chunk* Chunk);
+
private:
static ChunkAllocator* _s_instance;
--
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