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Am Mittwoch, 22. August 2012, 14:46:40 schrieb Mark Knecht: |
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> Hi, |
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> Yesterday I got a new, but rather low-end, PCIe-2 SATA-3 6Gb/S |
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> adapter card and a reportedly high performance 128GB SSD drive. (Links |
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> below) Other than my swap getting messed up because it didn't use |
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> labels (who knew about swaplabel but didn't tell me? ;-) ) the |
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> adapter and drive are in the machine and working fine. Unfortunately |
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> the performance isn't what I might have hoped for. Both hdparm & |
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> bonnie++ are reporting numbers in the 200MB/S range rather then the |
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> 400-500MB/S range that I might have hoped for. The machine is PCIx-2 |
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> based according to its specs. |
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certainly not. PCIX is something you don't have. PCIe2 - yes |
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> |
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> I'm currently just using a single large partition & ext3. I didn't |
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> do anything special in fdisk so the partition might not be aligned as |
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> best it could be. I don't know. |
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that alone can more than half your performance. |
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Btw, why ext3? 4 and trim is your friend with a ssd. |
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Your performance is fine. It is a single slot adapter, so the theoretical max |
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is 300mb/s. Now substract some for overhead and some for misalignment and |
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200mb/s aren't bad at all. |
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-- |
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#163933 |
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