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                            [TOC]

## Linux交換空間(Swap)
- 交換空間(Swap)是磁盤的一個分區
- Linux物理內存滿時,會把一些內存交換至Swap空間

## 交換空間與虛擬虛擬內存的區別
**相同**
1. 都存在于磁盤
2. 都與主存發生置換

**不同**
3. swap空間是**操作系統**概念,虛擬內存是**進程**概念
4. swap空間解決**系統物理內存**不足問題,虛擬內存解決**進程物理內存**不足問題

### 用途
1. 冷啟動內存依賴
2. 系統睡眠依賴
3. 大進程空間依賴


                    
                
        
                
            
        
                
    
                
    
                
        
                
    
                

                







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