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Hardrive Speed


mtotho
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Is this slow or standard? I dont think it is very fast but it really slows my xbench down.

 

My total xbench score is around 160 usually. Without hardrive its like 270. The hardrive test alone is about 50

 

Disk Test 51.69

Sequential 133.20

Uncached Write 134.10 82.33 MB/sec [4K blocks]

Uncached Write 154.22 87.26 MB/sec [256K blocks]

Uncached Read 101.50 29.70 MB/sec [4K blocks]

Uncached Read 160.34 80.58 MB/sec [256K blocks]

Random 32.06

Uncached Write 10.12 1.07 MB/sec [4K blocks]

Uncached Write 119.24 38.17 MB/sec [256K blocks]

Uncached Read 92.12 0.65 MB/sec [4K blocks]

Uncached Read 149.35 27.71 MB/sec [256K blocks]

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I think it is yours is much better than mine,

 

Results 41.85

System Info

Xbench Version 1.3

System Version 10.5.1 (9B18)

Physical RAM 4096 MB

Model Mac Pro

Drive Type ST3300820AS

Disk Test 41.85

Sequential 67.07

Uncached Write 34.98 21.48 MB/sec [4K blocks]

Uncached Write 83.85 47.44 MB/sec [256K blocks]

Uncached Read 115.70 33.86 MB/sec [4K blocks]

Uncached Read 95.33 47.91 MB/sec [256K blocks]

Random 30.42

Uncached Write 10.45 1.11 MB/sec [4K blocks]

Uncached Write 61.56 19.71 MB/sec [256K blocks]

Uncached Read 88.73 0.63 MB/sec [4K blocks]

Uncached Read 120.17 22.30 MB/sec [256K blocks]

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THe results are normal.

But: 1.) It depends on the Harddrive you use. In my experience, WD AAKS drives are fast. Setting up a Raid 0 (Software) with 2 AAKS results in a disk score of 142 here.

2.) XBench is not really a good bench tool. So dont believe too much what it tells.

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Yes, it's not unusual to get some less than attractive numbers especially on the random benchmarks. As rhalls said, don't put too much stock in them. From personal experience, I don't think the drive speed numbers in and of themselves represent a lot in the real world. I've got a Maxtor Diamond drive that gets a total Disk Test score of 119. Then I've got a WD Raptor 10K RPM drive that only scores in the 60's. In real life, the WD drive is noticeably faster.

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