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                            下圖顯示了開啟MTS后，slave服務器的QPS。測試的工具是sysbench的單表全update測試，測試結果顯示在16個線程下的性能最好，從機的QPS可以達到25000以上，進一步增加并行執行的線程至32并沒有帶來更高的提升。而原單線程回放的QPS僅在4000左右，可見MySQL 5.7 MTS帶來的性能提升，而由于測試的是單表，所以MySQL 5.6的MTS機制則完全無能為力了。

[![emts](https://box.kancloud.cn/2015-07-24_55b218c12e8e9.jpg)](http://www.innomysql.net/wp-content/uploads/2015/05/emts4.jpg)
                    
                
        
                
            
        
                
    
                
    
                
        
                
    
                

                







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