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Force R/W speeds


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I have my F120 in a MacBook and I ran XBench test and my results appear rather low

Does this seem normal to other Mac users?


Read / write speeds should be above 250 MB/s


Results 265.30

System Info

Xbench Version 1.3

System Version 10.6.7 (10J869)

Physical RAM 4096 MB

Model MacBook5,1

Drive Type Corsair CSSD-F120GB2

Disk Test 265.30

Sequential 157.36

Uncached Write [4K blocks] = 139.98 MB/sec

Uncached Write [256K blocks] = 145.37 MB/sec

Uncached Read [4K blocks] = 20.44 MB/sec

Uncached Read [256K blocks] = 177.98 MB/sec

Random 844.62

Uncached Write [4K blocks] = 119.57 MB/sec

Uncached Write [256K blocks] = 145.50 MB/sec

Uncached Read [4K blocks] = 12.20 MB/sec

Uncached Read [256K blocks] 173.52 MB/sec

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That's only for 4K and 256K blocks. As the blocks get bigger the speeds go up, I think you need about 1MB files minimum to reach peak speeds.


If you are transferring a huge file the sustained rates will be high.

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The hardware that the system is running on can have a huge impact on the speed. 285/275 are max speeds on a desktop system running an ICH.


If this is a laptop we would expect much slower speeds unfortunately. It does look like you have SATA II as I think if you had SATA I they would be even slower. However I don't think there is a way to get this drive any faster on your system, it is limited at the controller.


I don't know any benchmarks for Macintosh, you'd have to look around their communities. If you have a desktop system I would test the drive in there and I'm sure you'll find the drive is performing at top speeds.

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