Please requesting opinion from expert SSD'ers

Discussion in 'MacBook Pro' started by chp5592, Dec 6, 2010.

  1. chp5592 macrumors regular

    Joined:
    Jul 16, 2007
    #1
    I upgraded my MBP 15 (early 2009) to Intel G2 SSD 80GB few months ago. Love the improvement but I am wondering if my drive is slowing down. Here's my Xbench from last night. This seems a lot slower especially on the Random read/write cycles. It is much slower than other benchmarks posted here. Any opinions? Should I carbon-copy to external hard drive and re-zero the SSD and start over?


    Results 173.27
    System Info
    Xbench Version 1.3
    System Version 10.6.5 (10H574)
    Physical RAM 4096 MB
    Model MacBookPro5,1
    Drive Type INTEL SSDSA2M080G2GC
    Disk Test 173.27
    Sequential 159.94
    Uncached Write 131.37 80.66 MB/sec [4K blocks]
    Uncached Write 131.64 74.48 MB/sec [256K blocks]
    Uncached Read 135.52 39.66 MB/sec [4K blocks]
    Uncached Read 412.98 207.56 MB/sec [256K blocks]
    Random 189.03
    Uncached Write 245.55 25.99 MB/sec [4K blocks]
    Uncached Write 70.24 22.49 MB/sec [256K blocks]
    Uncached Read 548.27 3.89 MB/sec [4K blocks]
    Uncached Read 973.07 180.56 MB/sec [256K blocks]
     
  2. TheBaconKing macrumors regular

    TheBaconKing

    Joined:
    Dec 2, 2010
    Location:
    Northwest Arkansas
    #2
    Who cares what the benchmark says.. Does it feel any slower? If not then I wouldn't worry about it.
     
  3. maflynn Moderator

    maflynn

    Staff Member

    Joined:
    May 3, 2009
    Location:
    Boston
    #3
    +1

    People are getting too wrapped up in numbers, be they from coconut (for battery metrics) or xbench.

    If the machine is running as it should, lets not worry about the minutia
     
  4. WMuntean macrumors regular

    Joined:
    Aug 23, 2007
    #4
    I just did an ATA Secure Erase using a Ubuntu 10.10 LiveCD and that restored my Intel (actually it runs faster than the first install).

    I wouldn't zero out your drive, JMO.
     
  5. TheBaconKing macrumors regular

    TheBaconKing

    Joined:
    Dec 2, 2010
    Location:
    Northwest Arkansas
    #5
  6. fehhkk macrumors 6502a

    fehhkk

    Joined:
    Jun 11, 2009
    Location:
    Chicago, IL
    #6
    I did the ATA Secure erase, and worked great.

    Like others, I looked at the Xbench numbers after a year of usage, and it was around 220-240 ....

    After the secure erase, it's back to 280-290s.

    However, that's not important at all, the most important thing if it feels slower. In reality, it wasn't any slower than before, and after the secure erase it felt almost the same.
     
  7. chp5592 thread starter macrumors regular

    Joined:
    Jul 16, 2007
    #7
    Well, I haven't really done anything until last post. The computer has lost some of its "snappiness" that I had when I just installed the SSD. Here's the xbench from today. Seems like a big decay in performance in two months. I do download and subsequently trash lots of video files. I think the Mac OS is definitely in need of TRIM function.


    Results 127.52
    System Info
    Xbench Version 1.3
    System Version 10.6.6 (10J567)
    Physical RAM 4096 MB
    Model MacBookPro5,1
    Drive Type INTEL SSDSA2M080G2GC
    Disk Test 127.52
    Sequential 122.56
    Uncached Write 66.51 40.84 MB/sec [4K blocks]
    Uncached Write 130.95 74.09 MB/sec [256K blocks]
    Uncached Read 134.11 39.25 MB/sec [4K blocks]
    Uncached Read 398.75 200.41 MB/sec [256K blocks]
    Random 132.89
    Uncached Write 78.97 8.36 MB/sec [4K blocks]
    Uncached Write 84.39 27.02 MB/sec [256K blocks]
    Uncached Read 407.43 2.89 MB/sec [4K blocks]
    Uncached Read 319.04 59.20 MB/sec [256K blocks]

    Any advice?
     

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