How to optimize golang
Common routines: asynchronous, de-locking, reuse, zero copy, batch, in addition to avoid premature optimization and optimize the business logic level first
1.cpu Time Optimization (Recommended Learning: Go )
make时提前预估size 临时的map、slice采用sync.Pool 大于32Kb也可用sync.Pool 不滥用goroutine，减少gc压力 不滥用mutex，减少上下文切换 []byte与string临时变量转换用unsafe 减少reflect、defer使用 atomic无锁使用
# 2. Internet IO Performance Optimization
批量接口支持 http 长连接 redis pipeline db、redis连接池 增加缓存 大量数据压缩传输
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