堆管理器会查看可用内存的情况(使用特定算法)并返回一块内存。

The heap manager looks at the available memory (using a particular algorithm) and returns the block.

youdao

内存管理器以块的形式将内存分配给线程，以最小化堆锁定争用。

The memory manager allocates memory to threads in chunks to minimize contention on the heap lock.

youdao

每个排序都有单独的由数据库管理器按需分配的排序堆。

Each sort has a separate sort heap that is allocated as needed, by the database manager.

youdao