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xfs raid10 fio rw5050
rw5050: (g=0): rw=randrw, bs=4K-4K/4K-4K/4K-4K, ioengine=libaio, iodepth=32
...
fio-2.1.9
Starting 4 processes
rw5050: Laying out IO file(s) (1 file(s) / 25600MB)
rw5050: Laying out IO file(s) (1 file(s) / 25600MB)
rw5050: Laying out IO file(s) (1 file(s) / 25600MB)
rw5050: Laying out IO file(s) (1 file(s) / 25600MB)
rw5050: (groupid=0, jobs=4): err= 0: pid=58604: Wed Jun 18 04:00:25 2014
Description : ["random 50/50"]
read : io=70726MB, bw=120706KB/s, iops=30176, runt=600003msec
slat (usec): min=33, max=841447, avg=83.55, stdev=715.17
clat (usec): min=0, max=849878, avg=1827.74, stdev=2625.78
lat (usec): min=111, max=849933, avg=1905.65, stdev=2689.80
clat percentiles (usec):
| 1.00th=[ 161], 5.00th=[ 233], 10.00th=[ 322], 20.00th=[ 498],
| 30.00th=[ 700], 40.00th=[ 972], 50.00th=[ 1320], 60.00th=[ 1768],
| 70.00th=[ 2288], 80.00th=[ 2832], 90.00th=[ 3792], 95.00th=[ 4704],
| 99.00th=[ 7840], 99.50th=[11456], 99.90th=[19584], 99.95th=[21888],
| 99.99th=[42752]
bw (KB /s): min= 1, max=38936, per=25.03%, avg=30212.32, stdev=2978.71
write: io=70739MB, bw=120728KB/s, iops=30181, runt=600003msec
slat (usec): min=35, max=841446, avg=85.62, stdev=723.25
clat (usec): min=0, max=849878, avg=2239.16, stdev=3134.79
lat (usec): min=71, max=850181, avg=2318.80, stdev=3189.34
clat percentiles (usec):
| 1.00th=[ 159], 5.00th=[ 278], 10.00th=[ 414], 20.00th=[ 676],
| 30.00th=[ 996], 40.00th=[ 1384], 50.00th=[ 1832], 60.00th=[ 2288],
| 70.00th=[ 2736], 80.00th=[ 3344], 90.00th=[ 4320], 95.00th=[ 5216],
| 99.00th=[ 9408], 99.50th=[14016], 99.90th=[21120], 99.95th=[23936],
| 99.99th=[48896]
bw (KB /s): min= 3, max=37680, per=25.03%, avg=30218.40, stdev=2951.33
lat (usec) : 2=0.01%, 4=0.02%, 10=0.01%, 20=0.01%, 50=0.01%
lat (usec) : 100=0.08%, 250=4.86%, 500=11.73%, 750=10.58%, 1000=8.25%
lat (msec) : 2=23.47%, 4=30.24%, 10=9.98%, 20=0.66%, 50=0.10%
lat (msec) : 100=0.01%, 1000=0.01%
cpu : usr=1.15%, sys=9.39%, ctx=26853988, majf=0, minf=50949
IO depths : 1=0.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.1%, 32=100.1%, >=64=0.0%
submit : 0=0.0%, 4=0.0%, 8=0.0%, 16=100.0%, 32=0.0%, 64=0.0%, >=64=0.0%
complete : 0=0.0%, 4=0.0%, 8=0.0%, 16=100.0%, 32=0.0%, 64=0.0%, >=64=0.0%
issued : total=r=18105879/w=18109225/d=0, short=r=0/w=0/d=0
latency : target=0, window=0, percentile=100.00%, depth=32
Run status group 0 (all jobs):
READ: io=70726MB, aggrb=120705KB/s, minb=120705KB/s, maxb=120705KB/s, mint=600003msec, maxt=600003msec
WRITE: io=70739MB, aggrb=120728KB/s, minb=120728KB/s, maxb=120728KB/s, mint=600003msec, maxt=600003msec
Disk stats (read/write):
md0: ios=18131455/18135024, merge=0/0, ticks=0/0, in_queue=0, util=0.00%, aggrios=4532859/9068061, aggrmerge=4/20, aggrticks=5647558/9627055, aggrin_queue=15274612, aggrutil=84.85%
sdi: ios=4742034/9071800, merge=4/24, ticks=6077846/11092604, in_queue=17172070, util=83.28%
sdj: ios=4323573/9071802, merge=7/22, ticks=5419076/10370337, in_queue=15788817, util=81.58%
sdk: ios=5096516/9064317, merge=4/21, ticks=6992920/12149943, in_queue=19142370, util=84.85%
sdl: ios=3969314/9064325, merge=3/13, ticks=4100393/4895337, in_queue=8995193, util=74.30%
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