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111 | $ fio /usr/share/doc/fio/examples/ssd-test.fio
seq-read: (g=0): rw=read, bs=4K-4K/4K-4K/4K-4K, ioengine=libaio, iodepth=4
rand-read: (g=1): rw=randread, bs=4K-4K/4K-4K/4K-4K, ioengine=libaio, iodepth=4
seq-write: (g=2): rw=write, bs=4K-4K/4K-4K/4K-4K, ioengine=libaio, iodepth=4
rand-write: (g=3): rw=randwrite, bs=4K-4K/4K-4K/4K-4K, ioengine=libaio, iodepth=4
fio-2.2.10
Starting 4 processes
seq-read: Laying out IO file(s) (1 file(s) / 10240MB)
Jobs: 1 (f=1): [_(3),w(1)] [62.6% done] [0KB/54672KB/0KB /s] [0/13.7K/0 iops] [eta 01m:48s]
seq-read: (groupid=0, jobs=1): err= 0: pid=24080: Fri Mar 31 10:36:45 2017
read : io=10240MB, bw=492914KB/s, iops=123228, runt= 21273msec
slat (usec): min=1, max=17100, avg= 4.29, stdev=21.60
clat (usec): min=5, max=82452, avg=27.59, stdev=209.36
lat (usec): min=14, max=82470, avg=31.94, stdev=210.63
clat percentiles (usec):
| 1.00th=[ 16], 5.00th=[ 18], 10.00th=[ 19], 20.00th=[ 19],
| 30.00th=[ 20], 40.00th=[ 21], 50.00th=[ 22], 60.00th=[ 23],
| 70.00th=[ 24], 80.00th=[ 25], 90.00th=[ 27], 95.00th=[ 31],
| 99.00th=[ 73], 99.50th=[ 114], 99.90th=[ 668], 99.95th=[ 2288],
| 99.99th=[ 7392]
bw (KB /s): min=225312, max=601080, per=99.72%, avg=491543.36, stdev=96743.83
lat (usec) : 10=0.01%, 20=20.25%, 50=78.13%, 100=1.00%, 250=0.42%
lat (usec) : 500=0.08%, 750=0.03%, 1000=0.01%
lat (msec) : 2=0.02%, 4=0.02%, 10=0.03%, 20=0.01%, 50=0.01%
lat (msec) : 100=0.01%
cpu : usr=11.09%, sys=54.78%, ctx=585548, majf=0, minf=19
IO depths : 1=0.1%, 2=0.1%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0%
submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
issued : total=r=2621440/w=0/d=0, short=r=0/w=0/d=0, drop=r=0/w=0/d=0
latency : target=0, window=0, percentile=100.00%, depth=4
rand-read: (groupid=1, jobs=1): err= 0: pid=24263: Fri Mar 31 10:36:45 2017
read : io=10240MB, bw=177032KB/s, iops=44257, runt= 59231msec
slat (usec): min=1, max=4410, avg= 3.91, stdev= 5.91
clat (usec): min=9, max=11966, avg=85.69, stdev=125.27
lat (usec): min=21, max=11968, avg=89.66, stdev=125.47
clat percentiles (usec):
| 1.00th=[ 68], 5.00th=[ 70], 10.00th=[ 71], 20.00th=[ 72],
| 30.00th=[ 74], 40.00th=[ 78], 50.00th=[ 83], 60.00th=[ 84],
| 70.00th=[ 86], 80.00th=[ 88], 90.00th=[ 93], 95.00th=[ 100],
| 99.00th=[ 129], 99.50th=[ 149], 99.90th=[ 756], 99.95th=[ 2320],
| 99.99th=[ 6816]
bw (KB /s): min=144488, max=185688, per=100.00%, avg=177144.00, stdev=9603.02
lat (usec) : 10=0.01%, 20=0.01%, 50=0.02%, 100=94.92%, 250=4.81%
lat (usec) : 500=0.13%, 750=0.02%, 1000=0.02%
lat (msec) : 2=0.03%, 4=0.02%, 10=0.03%, 20=0.01%
cpu : usr=5.58%, sys=24.39%, ctx=1942794, majf=0, minf=13
IO depths : 1=0.1%, 2=0.1%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0%
submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
issued : total=r=2621440/w=0/d=0, short=r=0/w=0/d=0, drop=r=0/w=0/d=0
latency : target=0, window=0, percentile=100.00%, depth=4
seq-write: (groupid=2, jobs=1): err= 0: pid=24397: Fri Mar 31 10:36:45 2017
write: io=10240MB, bw=267242KB/s, iops=66810, runt= 39237msec
slat (usec): min=1, max=5418, avg= 4.47, stdev=11.37
clat (usec): min=9, max=65464, avg=54.83, stdev=270.86
lat (usec): min=17, max=65467, avg=59.36, stdev=271.13
clat percentiles (usec):
| 1.00th=[ 17], 5.00th=[ 18], 10.00th=[ 19], 20.00th=[ 21],
| 30.00th=[ 22], 40.00th=[ 22], 50.00th=[ 23], 60.00th=[ 24],
| 70.00th=[ 25], 80.00th=[ 28], 90.00th=[ 75], 95.00th=[ 255],
| 99.00th=[ 556], 99.50th=[ 684], 99.90th=[ 1320], 99.95th=[ 1992],
| 99.99th=[ 8032]
bw (KB /s): min=97112, max=388592, per=99.91%, avg=267012.00, stdev=66823.78
lat (usec) : 10=0.01%, 20=10.13%, 50=78.36%, 100=2.87%, 250=3.54%
lat (usec) : 500=3.77%, 750=0.96%, 1000=0.21%
lat (msec) : 2=0.12%, 4=0.02%, 10=0.02%, 20=0.01%, 50=0.01%
lat (msec) : 100=0.01%
cpu : usr=7.03%, sys=33.30%, ctx=672098, majf=0, minf=12
IO depths : 1=0.1%, 2=0.1%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0%
submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
issued : total=r=0/w=2621440/d=0, short=r=0/w=0/d=0, drop=r=0/w=0/d=0
latency : target=0, window=0, percentile=100.00%, depth=4
rand-write: (groupid=3, jobs=1): err= 0: pid=24636: Fri Mar 31 10:36:45 2017
write: io=3680.6MB, bw=62813KB/s, iops=15703, runt= 60001msec
slat (usec): min=1, max=8067, avg= 5.23, stdev=17.34
clat (usec): min=11, max=81603, avg=248.55, stdev=1135.38
lat (usec): min=17, max=81607, avg=253.85, stdev=1135.46
clat percentiles (usec):
| 1.00th=[ 17], 5.00th=[ 20], 10.00th=[ 21], 20.00th=[ 23],
| 30.00th=[ 24], 40.00th=[ 28], 50.00th=[ 37], 60.00th=[ 53],
| 70.00th=[ 55], 80.00th=[ 76], 90.00th=[ 478], 95.00th=[ 1336],
| 99.00th=[ 3504], 99.50th=[ 4448], 99.90th=[13504], 99.95th=[17792],
| 99.99th=[45824]
bw (KB /s): min=36637, max=102091, per=100.00%, avg=62817.71, stdev=12087.09
lat (usec) : 20=4.95%, 50=50.90%, 100=27.10%, 250=3.75%, 500=3.52%
lat (usec) : 750=2.04%, 1000=1.40%
lat (msec) : 2=3.11%, 4=2.54%, 10=0.51%, 20=0.13%, 50=0.03%
lat (msec) : 100=0.01%
cpu : usr=2.54%, sys=10.32%, ctx=400083, majf=0, minf=10
IO depths : 1=0.1%, 2=0.1%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0%
submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
issued : total=r=0/w=942215/d=0, short=r=0/w=0/d=0, drop=r=0/w=0/d=0
latency : target=0, window=0, percentile=100.00%, depth=4
Run status group 0 (all jobs):
READ: io=10240MB, aggrb=492914KB/s, minb=492914KB/s, maxb=492914KB/s, mint=21273msec, maxt=21273msec
Run status group 1 (all jobs):
READ: io=10240MB, aggrb=177031KB/s, minb=177031KB/s, maxb=177031KB/s, mint=59231msec, maxt=59231msec
Run status group 2 (all jobs):
WRITE: io=10240MB, aggrb=267241KB/s, minb=267241KB/s, maxb=267241KB/s, mint=39237msec, maxt=39237msec
Run status group 3 (all jobs):
WRITE: io=3680.6MB, aggrb=62813KB/s, minb=62813KB/s, maxb=62813KB/s, mint=60001msec, maxt=60001msec
Disk stats (read/write):
sda: ios=5259543/3562224, merge=7442/4570, ticks=290388/367260, in_queue=656948, util=97.35%
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