# PoolAllocator::GetPeakAllocated

```cpp
size_t GetPeakAllocated() const override;
```

返回峰值分配的内存总量（字节）。由于池在构造时预分配所有块，峰值即为 `m_totalBlocks * m_blockSize`。

**参数：** 无

**返回：** 内存池总容量（字节）

**复杂度：** O(1)

**示例：**

```cpp
#include <XCEngine/Memory/PoolAllocator.h>

PoolAllocator pool(sizeof(int), 100);

size_t peak = pool.GetPeakAllocated(); // 100 * sizeof(int)

// 即使分配了部分块，峰值仍然是总容量
void* block1 = pool.Allocate();
void* block2 = pool.Allocate();
size_t current = pool.GetTotalAllocated(); // 2 * sizeof(int)
peak = pool.GetPeakAllocated();            // 100 * sizeof(int)
```

## 相关文档

- [PoolAllocator 总览](pool-allocator.md) - 返回类总览