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                            Concurrent Map
===
適用于讀寫都很頻繁的情況
![](https://box.kancloud.cn/d499f3c5cf6b239af0a7e75f39d98a9a_551x298.png)
吧大的鎖拆分成小的鎖,降低了沖突的概率
### 第三方庫:
[https://github.com/orcaman/concurrent-map](https://github.com/orcaman/concurrent-map)
[https://github.com/fanliao/go-concurrentMap](https://github.com/fanliao/go-concurrentMap)
感覺都有點....

### 鎖的性能影響
- 減少鎖影響的范圍
- 減少發生鎖沖突的概率
    - sync.Map
    - ConcurrentMap
- 避免鎖的使用
 
                    
                
        
                
            
        
                
    
                
    
                
        
                
    
                

                







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