当一块记忆被分配时。你计划将创造一张显示可用存储器的系统的快照。
When a block of memory is allocated. you program will create a snapshot of the system showing available memory.
一台大型计算机的即时存取存储器可容纳多达100000个“单词”——字母或数字字符的字符串——随时可用。
The instant access memory of a large computer may hold up to 100,000 "words"—string of alphabetic or numerical characters—ready for instant use.
但是，如果总的缓冲区大小太大，并且没有足够的存储器可用来分配给它们，那么将为每种页大小分配最少的缓冲池，性能就会急剧下降。
However, if the total buffer size is too large, and there is not enough storage to allocate them, a minimum system buffer pool for each page size is allocated, and performance is sharply reduced.
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