“buddy system”的概念、定义、翻译、参考文献-科学参考

buddy system

Computer

A method of implementing a memory management system. The available memory is partitioned into blocks whose sizes are always exact powers of two. A request for m bytes of memory is satisfied by allocating a block of size 2^p⁺¹ where
$2^{p} < m \leq 2^{p + 1}$
if no block of this size is available then a larger block is subdivided, more than once if necessary, until a block of the required size is generated. When memory is freed it is combined with a free adjacent block (if one exists) to produce a larger block, always preserving the condition that block sizes are exact powers of two.

单词	buddy system
释义	buddy system Computer A method of implementing a memory management system. The available memory is partitioned into blocks whose sizes are always exact powers of two. A request for m bytes of memory is satisfied by allocating a block of size 2^p⁺¹ where $2^{p} < m \leq 2^{p + 1}$ if no block of this size is available then a larger block is subdivided, more than once if necessary, until a block of the required size is generated. When memory is freed it is combined with a free adjacent block (if one exists) to produce a larger block, always preserving the condition that block sizes are exact powers of two.
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