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Thread: Hardware Recommendations?

  1. #11

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    C:\Program Files (x86)\SQLIO>sqlio.exe -kW -s20 -frandom -o64 -b4 -BH -LS -Fpara
    m.txt
    sqlio v1.5.SG
    using system counter for latency timings, 3579545 counts per second
    parameter file used: param.txt
    file g:\testfile.dat with 1 thread (0) using mask 0x0 (0)
    1 thread writing for 20 secs to file g:\testfile.dat
    using 4KB random IOs
    enabling multiple I/Os per thread with 64 outstanding
    buffering set to use hardware disk cache (but not file cache)
    size of file g:\testfile.dat needs to be: 83886080000 bytes
    current file size: 41943040000 bytes
    need to expand by: 41943040000 bytes
    expanding g:\testfile.dat ... done.
    using specified size: 80000 MB for file: g:\testfile.dat
    initialization done
    CUMULATIVE DATA:
    throughput metrics:
    IOs/sec: 30826.99
    MBs/sec: 120.41
    latency metrics:
    Min_Latency(ms): 0
    Avg_Latency(ms): 1
    Max_Latency(ms): 787
    histogram:
    ms: 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24+
    %: 78 21 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1

    this was with a 80GB file

    in a non virtual system this should be 30% better.

    regards
    roger

  2. #12

    Lightbulb

    How are reads?

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