Cameron Harr wrote:
Vladislav Bolkhovitin wrote:
Strange, indeed.
Did you use the real drives or NULLIO?
Here are some results with NULLIO, but they seem to hang when srpt
thread is set to 0 (this got a few runs in). Note that to get things
even running when srpt thread=0, I had to put the ib_srpt code back to
it's original state.
Unfortunately, it invalidates all the results. Can you try again with
the patch I sent to you? With gathering of top and vmstat output.
type=randwrite bs=512 drives=1 scst_threads=1 srptthread=1 iops=113418.36
type=randwrite bs=4k drives=1 scst_threads=1 srptthread=1 iops=107773.57
type=randwrite bs=512 drives=2 scst_threads=1 srptthread=1 iops=147188.09
type=randwrite bs=4k drives=2 scst_threads=1 srptthread=1 iops=170401.06
type=randwrite bs=512 drives=3 scst_threads=1 srptthread=1 iops=194783.09
type=randwrite bs=4k drives=3 scst_threads=1 srptthread=1 iops=112113.57
type=randwrite bs=512 drives=1 scst_threads=2 srptthread=1 iops=88371.81
type=randwrite bs=4k drives=1 scst_threads=2 srptthread=1 iops=86334.84
type=randwrite bs=512 drives=2 scst_threads=2 srptthread=1 iops=177128.90
type=randwrite bs=4k drives=2 scst_threads=2 srptthread=1 iops=105784.42
type=randwrite bs=512 drives=3 scst_threads=2 srptthread=1 iops=125456.49
type=randwrite bs=4k drives=3 scst_threads=2 srptthread=1 iops=93726.40
type=randwrite bs=512 drives=1 scst_threads=3 srptthread=1 iops=137550.91
type=randwrite bs=4k drives=1 scst_threads=3 srptthread=1 iops=90684.18
type=randwrite bs=512 drives=2 scst_threads=3 srptthread=1 iops=182657.96
type=randwrite bs=4k drives=2 scst_threads=3 srptthread=1 iops=95166.77
type=randwrite bs=512 drives=3 scst_threads=3 srptthread=1 iops=184928.53
type=randwrite bs=4k drives=3 scst_threads=3 srptthread=1 iops=84169.93
type=randwrite bs=512 drives=1 scst_threads=1 srptthread=0 iops=139561.62
type=randwrite bs=4k drives=1 scst_threads=1 srptthread=0 iops=100328.18
type=randwrite bs=512 drives=2 scst_threads=1 srptthread=0 iops=206477.91
type=randwrite bs=4k drives=2 scst_threads=1 srptthread=0 iops=99723.22
type=randwrite bs=4k drives=1 scst_threads=1 srptthread=0
iops=51134.20
type=randwrite bs=4k drives=1 scst_threads=1 srptthread=1
iops=63461.86
type=randwrite bs=4k drives=1 scst_threads=2 srptthread=0
iops=52383.10
type=randwrite bs=4k drives=1 scst_threads=2 srptthread=1
iops=54065.52
type=randwrite bs=4k drives=1 scst_threads=3 srptthread=0
iops=48827.27
type=randwrite bs=4k drives=1 scst_threads=3 srptthread=1
iops=52703.82
type=randwrite bs=4k drives=2 scst_threads=1 srptthread=0
iops=64619.11
type=randwrite bs=4k drives=2 scst_threads=1 srptthread=1
iops=62605.09
type=randwrite bs=4k drives=2 scst_threads=2 srptthread=0
iops=67961.56
type=randwrite bs=4k drives=2 scst_threads=2 srptthread=1
iops=78884.72
type=randwrite bs=4k drives=2 scst_threads=3 srptthread=0
iops=70340.04
type=randwrite bs=4k drives=2 scst_threads=3 srptthread=1
iops=76253.60
type=randwrite bs=4k drives=3 scst_threads=1 srptthread=0
iops=53777.02
type=randwrite bs=4k drives=3 scst_threads=1 srptthread=1
iops=64661.21
type=randwrite bs=4k drives=3 scst_threads=2 srptthread=0
iops=91073.05
type=randwrite bs=4k drives=3 scst_threads=2 srptthread=1
iops=90127.98
type=randwrite bs=4k drives=3 scst_threads=3 srptthread=0
iops=92012.13
type=randwrite bs=4k drives=3 scst_threads=3 srptthread=1
iops=96848.61
type=randwrite bs=512 drives=1 scst_threads=1 srptthread=0
iops=55040.20
type=randwrite bs=512 drives=1 scst_threads=1 srptthread=1
iops=62057.33
type=randwrite bs=512 drives=1 scst_threads=2 srptthread=0
iops=60237.05
type=randwrite bs=512 drives=1 scst_threads=2 srptthread=1
iops=63465.54
type=randwrite bs=512 drives=1 scst_threads=3 srptthread=0
iops=58716.01
type=randwrite bs=512 drives=1 scst_threads=3 srptthread=1
iops=60089.11
type=randwrite bs=512 drives=2 scst_threads=1 srptthread=0
iops=64978.41
type=randwrite bs=512 drives=2 scst_threads=1 srptthread=1
iops=64018.47
type=randwrite bs=512 drives=2 scst_threads=2 srptthread=0
iops=78128.56
type=randwrite bs=512 drives=2 scst_threads=2 srptthread=1
iops=94561.47
type=randwrite bs=512 drives=2 scst_threads=3 srptthread=0
iops=82526.52
type=randwrite bs=512 drives=2 scst_threads=3 srptthread=1
iops=105874.51
type=randwrite bs=512 drives=3 scst_threads=1 srptthread=0
iops=56730.70
type=randwrite bs=512 drives=3 scst_threads=1 srptthread=1
iops=62147.04
type=randwrite bs=512 drives=3 scst_threads=2 srptthread=0
iops=87507.15
type=randwrite bs=512 drives=3 scst_threads=2 srptthread=1
iops=95781.40
type=randwrite bs=512 drives=3 scst_threads=3 srptthread=0
iops=91645.99
type=randwrite bs=512 drives=3 scst_threads=3 srptthread=1
iops=114164.39
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