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Thread: PS-100 Official Update

  1. #121
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    Jan 2012
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    I just tried it out under windows and have very good performance as shown below.




    However under Linux, it continues to have unbearable write speeds.

    The motherboard is an Intel DG965WH and the system is custom built.
    The OS is Ubuntu 11.10 which has the 3.2.0 kernel.

    I'm going to try flashing an older revision of firmware and see if the issue is resolved.

    - Further Info -
    Nothing is showing up in dmesg (other than a mount).
    This problem is present in both AHCI and Legacy controller modes.
    Other hard disks in the system enjoy 80+ MB/s write speeds.

    Spenser
    Last edited by Spenser309; 01-21-2012 at 12:33 AM.

  2. #122
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    Tried the 3.005 firmware and had the same results.

  3. #123
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    Quote Originally Posted by Patriot_Ben View Post
    Hi Spenser309,

    Can you test with Windows just to cross-verify the performance?

    What is the make and the model of the motherboard/system you are using?
    Were you able to glean anything from my results?

  4. #124
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    Quote Originally Posted by Spenser309 View Post
    Were you able to glean anything from my results?
    Hello,

    Your Windows via ATTO results look fine.

    Have you tried updating the motherboard to the latest bios?

    Can you check to see if there are any sata driver updates for your os?

  5. #125
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    Motherboard is at the latest bios and the 2.6.38 kernel is very recent. (mistakenly said 3.2.0 in a previous post)

    Any other suggestions? Is there a specific Linux support guy that I may converse with?

    I saw in the latest release notes that the drive is supposed to be more Linux compatible.


    Release Notes:
    1. Improves overall data transfer
    2. Optimizes drive for Linux compatibility Firmware update #3.005
    Last edited by Spenser309; 01-24-2012 at 02:21 AM.

  6. #126
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    Here's a screenshot of the benchmark from the disks utility.

  7. #127
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    Hey Spenser309,

    Can you tell me what other drivers you are running to achieve the 80+MB/s. In relations to the PS-100 in Windows is the benchmarks of other drives consistent compared to it?

    The problem with Linux is just the drivers support. In this case there wouldn't be much we can do as it's a limitation in the OS.

    Unfortunately we don't have a dedicated Linux support guy per se.

    Can you contact Intel to see if they can provide specific sata drivers for your os?

    3.011 is geared towards Linux support in terms of general stability.

  8. #128
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    Patriot_Ben,

    As a last resort, I have gone through and tested some additional firmware revisions on Linux. Luckily, I found that the 3.000 release works really well on Linux.

    Here's a summary of my results.

    2.008 - Works but 58 MB/s write speed.
    3.000 - Works 100 MB/s write speed. (Hurrah)
    3.004 - Not Tested due to observation that some have bricked their SSDs using this firmware. However, if you can promise me an RMA, I would really like to test it.
    3.005 - Does not work sub 20 MB/s speed.
    3.011 - Does not work sub 20 MB/s speed.

    Can you run a diff on the firmware and determine what may have caused this issue? (or provide me with a way to turn on additional debugging to provide you.)

    I tested this running the ata_piix driver for all firmwares (IE. Legacy Mode) and additionally, the ahci driver for firmware 3.000 and 3.011(IE. Native AHCI Mode).

    I'm happy to provide free testing work on this as long as my drive works to it's full potential.

    Maybe this has something with the drop of NCQ support in 3.004, 3.005 and 3.011?

  9. #129
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    Ohh and here's a screenshot of the benchmark running.

  10. #130
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    Hello,

    That's interesting. Yes go ahead test the 3.004. As long as you are using an official firmware the warranty will still stand. However the replacement might be a different drive pending available stock.

    Have you tried the suggested tweaks here?
    http://www.howtogeek.com/62761/how-t...r-performance/

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