common/buf/buffer.go: Replace copy zero with clear() #5071
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This was referenced Aug 31, 2025
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唯一会增加性能的地方 其他panic我看了一下绝大多数都以数组越界的形式出现 没必要加有的没的
至于writeString节省拷贝开销我自己写了一个确实可以节省的版本 没有观测到肉眼可见的变化 而且脑测需要单次写入极大的数据才会形成差距 但凡跟一下都会发现这个东西一般都是写一些控制信息 或者非常短的玩意(比如http/1.1里的换行符) 不参与高强度热循环