Samsung 830 SSD Slow Boot Times

Discussion in 'MacBook Pro' started by BAYsic, Dec 8, 2013.

  1. BAYsic, Dec 8, 2013
    Last edited: Dec 8, 2013

    BAYsic macrumors newbie

    Joined:
    Feb 26, 2013
    #1
    Hello everyone,

    I first installed my Samsung 830 SSD about a year ago. I have loved the performance and speed since day one. I had always experienced boot times of approximately 12 seconds.

    Recently, I noticed that boot times had seemed much longer, about 45 seconds. Moreover, shutting down took well over a minute. After some hunting around, I did a PRAM reset (no difference) and cleared the the kext caches (boot times reduced to about 30 seconds, shutdowns still slow).

    I am not sure what the deal is. I doubt a year of casual use has degraded my SSD, so I think some setting is screwed up somewhere. I don't know exactly when the boot times started slowing down, but I only recently noticed it.

    I have upgraded to Mavericks (so that could be one culprit) and recently downloaded Chameleon SSD Optimizer (before, I only used TRIM Enabler but decided to go with Chameleon since it offers additional functionality).

    Any thoughts on what the issue might be? I have the correct start up disk selected and confirmed the start up disk after clearing the kext caches.

    Thanks in advance!

    Edit:

    Here is a screen shot of a speed test in case readers find it helpful. Note, I am on a mid-2009 MBPro (SATA 3gb/s).
     

    Attached Files:

  2. yjchua95 macrumors 604

    Joined:
    Apr 23, 2011
    Location:
    GVA, KUL, MEL (current), ZQN
    #2
    Try downloading DriveDx (free 10 day trial) and check your SSD's health.

    Bear in mind that SSDs have limited read/write cycles. Benchmarking with Blackmagic will wear it down, so I don't use it unless I want to show off to my mates :D

    On another note, the 840 Pro uses MLC, and can last much longer (7-8 years under heavy usage).
     
  3. BAYsic thread starter macrumors newbie

    Joined:
    Feb 26, 2013
    #3
    I downloaded DriveDx and the drive is in excellent health. Nearly all indicators were at 100%, with only a few at 99%. Nothing lower than 99%.

    I almost never run a benchmark using Blackmagic, have no reason to do so. From what I gather from various posts on this forum, my numbers seem to be right where they should be. Am I right?
     
  4. yjchua95 macrumors 604

    Joined:
    Apr 23, 2011
    Location:
    GVA, KUL, MEL (current), ZQN
    #4
    Since it's running at 3Gbps, it's normal. But what concerns me is your boot time. Looks like you may have a few bad sectors. Have you repaired disk permissions yet?
     
  5. BAYsic, Dec 8, 2013
    Last edited: Dec 8, 2013

    BAYsic thread starter macrumors newbie

    Joined:
    Feb 26, 2013
    #5
    I am repairing permissions now. I know this usually takes quite a while, but it is definitely taking a lot longer than usual. I will try a few reboots after it completes to see if boot times are back to where they used to be.

    EDIT:

    It took approximately 15 minutes to complete repairing permissions. I shutdown and restarted and my boot up times are still slow.

    I also noted one other issue during the repair process. The details window states:

    Warning: SUID file “System/Library/CoreServices/RemoteManagement/ARDAgent.app/Contents/MacOS/ARDAgent” has been modified and will not be repaired.

    It said nothing else until the repair process was complete.
     
  6. Gunlance macrumors newbie

    Joined:
    Jul 6, 2012
    #6
    Is there anything connected to the computer while booting? One of my mice would hang up a quick boot as the computer would try to boot from it.
     
  7. BAYsic thread starter macrumors newbie

    Joined:
    Feb 26, 2013
    #7
    Nothing is connected to the laptop.
     
  8. Quinoky macrumors regular

    Quinoky

    Joined:
    Sep 18, 2011
    Location:
    Groningen, Netherlands
    #8
    Could you download xbench, run only the disk test and post results?
     
  9. BAYsic thread starter macrumors newbie

    Joined:
    Feb 26, 2013
    #9
    Here are the results.
     

    Attached Files:

  10. Quinoky macrumors regular

    Quinoky

    Joined:
    Sep 18, 2011
    Location:
    Groningen, Netherlands
    #10
    Seems normal for SATA 3gb/s.. It probably has something to do with the way the 830 handles garbage collection. It only starts cleaning up the drive when there is little to no IO activity (source: http://www.anandtech.com/show/4863/the-samsung-ssd-830-review/6). I'm not sure to what extent TRIM is effective as a third party solution in Mac OS X, but your 830 probably has collected enough garbage over that one year period to slow it down anyway. I suppose you could try formatting the drive and start with a fresh install of Mavericks, if nothing else works.
     
  11. BAYsic thread starter macrumors newbie

    Joined:
    Feb 26, 2013
    #11
    Hopefully that's not the case. I have had TRIM enabled since day 1 and I would think that if TRIM enabler and the other third party solutions were not effective, and degradation was noticeable in less than a year, we would have heard something by now (many other have been using an SSD with TRIM enabler for much longer than me).

    What are people's thoughts on post #9 here: http://www.tonymacx86.com/os-x-upda...-minute-after-10-8-2-supplemental-update.html

    I tried this and read through the log and found a few SMC errors during bootup. Could that be slowing down the system?
     
  12. Dopeyman macrumors 6502a

    Joined:
    Sep 5, 2005
    Location:
    Los Angeles!
    #12
    Try a defrag....

    Yes, I know some people say it won't work or it won't make a difference on a SSD, but the other day I looked at my SSD through Drive Genius and it was very heavily fragged and it even recommended a defrag (I have a 64GB M4 Crucial just as my startup)... So I booted from an external drive and defragged my SSD...

    I noticed like a 5 second quicker startup....

    Hey... It's worth a shot... Whatcha got to lose?? :confused:

    Other suggestion: Try a fresh install....

    PS: This was on my iMac, not on a MB/P....
     

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