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SSD causing slow performance occationally (Respons time)

  1. #1

    SSD causing slow performance occationally (Respons time)


    I've been having some issues with my OS SSD. It's a 64GB Corsair "CORSAIR CMFSSD-64GB2D".

    What happens is that it will occationally without really being put under a lot of stress start going at 100% active time. It will then get a very high Average Respons Time, up to 20.000ms, and being the OS drive put the entire system to a halt for up to a few minutes.

    I can not find any specific trigger, and I've tried looking at the error log without seeing any pointers. That being said, I'm hardly an expert and was just looking for an abnormal amount of errors or warnings within the timespan that it was malfunctioning.

    I've searched some, and all I could find was some SSDs with a controller problem, some early controller for SSDs that had some kind of rewrite problem that could stack up into something like this. However I have no idea if corsair have ever used that controller and if this SSD could have it.

    Any ideas, or pointers for things I can check would be great, I'd really like to figure this out as it's driving me mental. I hope that it would not be the controller thing as where I found some information about that, it seemed to be something that could not be fixed with anything other then a new SSD with better controllers.

    Thanks in advance

      My System SpecsSystem Spec

  2. #2


    USA, Idaho
    Posts : 1,062
    Win 8, (VM win7, XP, Vista)


    Question: How much room is left on the SSD after you have installed all your programs/apps, and anything else you may have put on the drive?
      My System SpecsSystem Spec

  3. #3


    There are a few smaller programs which has been installed on the SSD, browsers, music players, video players. It has 11,8GB available of 59,1.
      My System SpecsSystem Spec

  4. #4


    How about power saving settings for disk, did you check that ? SSDs use a very small amount of power and even on laptops it is not necessary to shut them down during normal use.
      My System SpecsSystem Spec

  5. #5


    Posts : 103
    Windows 8.1 64 Bit


    Also check in task manager (process tab) what process takes over the drive, that may help.
      My System SpecsSystem Spec

  6. #6


    Posts : 1,093
    Windows 8 Pro Windows 8.1 Preview


    Have you checked to make sure you SSD is/was properly aligned upon initial installation? Also, I hope you have disabled automatic maintenance (defrag) for that drive.
      My System SpecsSystem Spec

  7. #7


    Posts : 1,093
    Windows 8 Pro Windows 8.1 Preview


    Also, on the disabled defrag view, is your drive being properly recognized as a "solid state device?"
      My System SpecsSystem Spec

  8. #8


    I disable all power saving options, the harddrive is never set to sleep. I have disabled defragment, what would a defragment do negatively for an SSD? It is recognized as an SSD, however under Current status at the defragment menu it says "Optimisation not available" Not sure why, considering my other SSD does have the option of being defragmented.

    What do you mean by aligned and how could I check if it is? It was however formated by the windows installer, and from what information I've been able to collect by a google search, that should secure proper alignment.

    As far as what programs, I can take a look next time it occurs, and see if anything points out. Is there any way I can isolate only the disk usage related to one partition or drive? Considering I have 4 different, so it would be nice to only see the load put on that SSD isolated.
    Last edited by flashist; 20 Jul 2013 at 10:15.
      My System SpecsSystem Spec

  9. #9


    Posts : 1,093
    Windows 8 Pro Windows 8.1 Preview


    Quote Originally Posted by flashist View Post
    I disable all power saving options, the harddrive is never set to sleep. I have disabled defragment, what would a defragment do negatively for an SSD? It is recognized as an SSD, however under Current status at the defragment menu it says "Optimisation not available" Not sure why, considering my other SSD does have the option of being defragmented.

    What do you mean by aligned and how could I check if it is?
    That's not a good sign. Maybe you do have an alignment problem. Here a quick way to check your alignment:

    http://whirlpool.net.au/wiki/checking_ssd_alignment

    This works for Windows 8 as well. Repeat for each partition.
      My System SpecsSystem Spec

  10. #10


    They're all aligned according to that test
      My System SpecsSystem Spec

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