2009 Mac Pro (4)x SSD RAID 0, Seems Slow...

Discussion in 'Mac Pro' started by dsa420, Oct 20, 2009.

  1. dsa420 macrumors 6502

    Joined:
    Feb 23, 2007
    #1
    I have (4) 30GB OCZ Vertex in a RAID 0 array using software RAID in my 2009 Mac Pro Quad core, overall performance seems lagging. Check the Xbench scores below, dont seem to be limited by the I/O throttling as I am not reaching max speeds:

    Results 271.94
    System Info
    Xbench Version 1.3
    System Version 10.6 (10A432)
    Physical RAM 3072 MB
    Model MacPro4,1
    Drive Type SSD RAID
    CPU Test 192.23
    GCD Loop 292.22 15.40 Mops/sec
    Floating Point Basic 169.99 4.04 Gflop/sec
    vecLib FFT 112.54 3.71 Gflop/sec
    Floating Point Library 381.92 66.51 Mops/sec
    Thread Test 668.92
    Computation 813.65 16.48 Mops/sec, 4 threads
    Lock Contention 567.90 24.43 Mlocks/sec, 4 threads
    Memory Test 345.56
    System 334.46
    Allocate 259.51 952.99 Kalloc/sec
    Fill 323.31 15720.28 MB/sec
    Copy 494.27 10208.92 MB/sec
    Stream 357.42
    Copy 362.93 7496.10 MB/sec
    Scale 350.90 7249.53 MB/sec
    Add 368.73 7854.81 MB/sec
    Triad 347.93 7443.03 MB/sec
    Quartz Graphics Test 241.23
    Line 214.34 14.27 Klines/sec [50% alpha]
    Rectangle 273.87 81.76 Krects/sec [50% alpha]
    Circle 234.38 19.11 Kcircles/sec [50% alpha]
    Bezier 230.40 5.81 Kbeziers/sec [50% alpha]
    Text 262.95 16.45 Kchars/sec
    OpenGL Graphics Test 135.69
    Spinning Squares 135.69 172.13 frames/sec
    User Interface Test 353.96
    Elements 353.96 1.62 Krefresh/sec
    Disk Test 552.54
    Sequential 382.85
    Uncached Write 546.95 335.82 MB/sec [4K blocks]
    Uncached Write 833.59 471.64 MB/sec [256K blocks]
    Uncached Read 156.14 45.69 MB/sec [4K blocks]
    Uncached Read 984.79 494.95 MB/sec [256K blocks]
    Random 992.40
    Uncached Write 458.54 48.54 MB/sec [4K blocks]
    Uncached Write 922.09 295.20 MB/sec [256K blocks]
    Uncached Read 3461.10 24.53 MB/sec [4K blocks]
    Uncached Read 2099.22 389.52 MB/sec [256K blocks]
     
  2. jwl macrumors newbie

    Joined:
    Sep 28, 2009
    Location:
    San Ramon
    #2
    If it helps, here are my results (120 Vertex, Quad, 12 gigs ram):

    Results 215.34
    System Info
    Xbench Version 1.3
    System Version 10.6.1 (10B504)
    Physical RAM 12288 MB
    Model MacPro4,1
    Drive Type OCZ-VERTEX
    CPU Test 154.43
    GCD Loop 284.17 14.98 Mops/sec
    Floating Point Basic 126.69 3.01 Gflop/sec
    vecLib FFT 94.13 3.11 Gflop/sec
    Floating Point Library 258.64 45.04 Mops/sec
    Thread Test 749.95
    Computation 840.04 17.02 Mops/sec, 4 threads
    Lock Contention 677.32 29.14 Mlocks/sec, 4 threads
    Memory Test 329.79
    System 370.92
    Allocate 465.12 1.71 Malloc/sec
    Fill 281.16 13670.70 MB/sec
    Copy 419.95 8673.82 MB/sec
    Stream 296.88
    Copy 313.05 6465.83 MB/sec
    Scale 285.41 5896.57 MB/sec
    Add 304.38 6483.95 MB/sec
    Triad 286.52 6129.41 MB/sec
    Quartz Graphics Test 219.66
    Line 166.09 11.06 Klines/sec [50% alpha]
    Rectangle 210.67 62.90 Krects/sec [50% alpha]
    Circle 188.73 15.38 Kcircles/sec [50% alpha]
    Bezier 197.60 4.98 Kbeziers/sec [50% alpha]
    Text 611.24 38.24 Kchars/sec
    OpenGL Graphics Test 91.41
    Spinning Squares 91.41 115.96 frames/sec
    User Interface Test 338.90
    Elements 338.90 1.56 Krefresh/sec
    Disk Test 310.36
    Sequential 290.90
    Uncached Write 375.66 230.65 MB/sec [4K blocks]
    Uncached Write 373.26 211.19 MB/sec [256K blocks]
    Uncached Read 158.88 46.50 MB/sec [4K blocks]
    Uncached Read 472.76 237.61 MB/sec [256K blocks]
    Random 332.62
    Uncached Write 107.24 11.35 MB/sec [4K blocks]
    Uncached Write 743.77 238.11 MB/sec [256K blocks]
    Uncached Read 3515.94 24.92 MB/sec [4K blocks]
    Uncached Read 932.94 173.11 MB/sec [256K blocks]
     
  3. Tesselator macrumors 601

    Tesselator

    Joined:
    Jan 9, 2008
    Location:
    Japan
    #3
    Well, of course. You're testing your hi-speed RAID with lame software not capable of recording proper results. X-Bench and Geekbench should be deleted from the drives of any serious tester's tool-set. They are lame and inaccurate.
     
  4. aliot macrumors member

    Joined:
    Jun 19, 2008
    #4
    Man,you need a raidcard,a good raidcard,seriously.
     
  5. VirtualRain macrumors 603

    VirtualRain

    Joined:
    Aug 1, 2008
    Location:
    Vancouver, BC
    #5
    3 SSD's will max out the ICH10R which handles the SATA connections. It has a max throughput of 660MB/s.

    Why do you say your performance seems lagging... are you just being an ass?! :p :eek:

    Also, as Tess says, there are no good benchmarking utilities for OSX... your best bet is some app benchmarks.

    EDIT: here's another thread on disk performance you might find helpful to put things in context... http://forums.macrumors.com/showthread.php?t=726879
     

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