For example, it is just as costly for an allocator to determine how much total contiguous space would be gained by coalescing chunks as it would be to just coalesce them and then resplit them.

 
  • 例如,让分配器判断通过合并块能获取多少总共的连续空间的开销和直接合并然后分割它们的开销一样大。
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