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SATA 6Gbps固态硬盘AHCI、IDE模式对比

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Old 06-08-2012, 06:32 PM
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Default SATA 6Gbps固态硬盘AHCI、IDE模式对比

Phoronix近日对Linux系统下固态硬盘运行于AHCI、IDE两种模式的不同性能进行了简单对比,不过鉴于后者是更先进的SATA模式,还支持NCQ、热插拔等功能,结果也在意料之中。测试系统是Ubuntu 12.10。Linux内核自从2.6.19版开始就支持AHCI,最新的3.5版当然更没问题。所用固态硬盘是OCZ Vertex 3 240GB,SATA 6Gbps接口。测试成绩如下:除了BlogBench意外落后三分之一,AHCI在其它12个项目中均如期取得胜利,有时候甚至是好几倍的压倒性优势。既然现在Linux系统对AHCI已经支持得这么好,SATA 6Gbps硬盘自然就没必要考虑IDE模式了。另外感兴趣的还可以看看机械硬盘在两种模式下的性能对比,这里和这里。
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