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introducing cbList to replace list.List #20

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zjx20 wants to merge 1 commit into xtaci:master from zjx20:cblist

zjx20 commented Sep 17, 2021

profile内存时发现，gaio内部用 list.List 来存放读者/写者的回调上下文，因此每次异步读写（写操作大部分情况就直接tryWrite成功了，所以更多情况是读操作）都会动态创建 list.Element 对象。

其实一般的应用，一个连接只会有1个读请求，或者若干个写请求，readers/writers 的数量相对较少，用slice就可以满足需求。这个PR用slice实现了 cbList 用来代替 list.List，以此优化内存分配次数较多的问题。


          introducing cbList to replace list.List

b931868

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