fio ssd-test.fio
seq-read: (g=0): rw=read, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=libaio, iodepth=4
rand-read: (g=1): rw=randread, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=libaio, iodepth=4
seq-write: (g=2): rw=write, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=libaio, iodepth=4
rand-write: (g=3): rw=randwrite, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=libaio, iodepth=4
fio-3.1
Starting 4 processes
seq-read: Laying out IO file (1 file / 10240MiB)
Jobs: 1 (f=1): [_(3),w(1)][100.0%][r=0KiB/s,w=185MiB/s][r=0,w=47.3k IOPS][eta 00m:00s]
seq-read: (groupid=0, jobs=1): err= 0: pid=23213: Tue Jun 25 23:13:37 2019
read: IOPS=63.6k, BW=248MiB/s (260MB/s)(10.0GiB/41247msec)
slat (nsec): min=1753, max=139592, avg=3544.02, stdev=1235.40
clat (usec): min=16, max=3964, avg=58.10, stdev= 8.70
lat (usec): min=33, max=3968, avg=61.92, stdev= 8.75
clat percentiles (usec):
| 1.00th=[ 44], 5.00th=[ 50], 10.00th=[ 55], 20.00th=[ 57],
| 30.00th=[ 58], 40.00th=[ 58], 50.00th=[ 59], 60.00th=[ 59],
| 70.00th=[ 59], 80.00th=[ 60], 90.00th=[ 63], 95.00th=[ 70],
| 99.00th=[ 75], 99.50th=[ 78], 99.90th=[ 88], 99.95th=[ 113],
| 99.99th=[ 188]
bw ( KiB/s): min=185594, max=253508, per=73.89%, avg=187836.27, stdev=7357.32, samples=82
iops : min=46398, max=63377, avg=46958.68, stdev=1839.37, samples=82
lat (usec) : 20=0.01%, 50=5.49%, 100=94.44%, 250=0.07%, 500=0.01%
lat (usec) : 750=0.01%, 1000=0.01%
lat (msec) : 2=0.01%, 4=0.01%
cpu : usr=5.75%, sys=36.19%, ctx=1316591, majf=0, minf=34
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 rwt: total=2621440,0,0, short=0,0,0, dropped=0,0,0
latency : target=0, window=0, percentile=100.00%, depth=4
rand-read: (groupid=1, jobs=1): err= 0: pid=25160: Tue Jun 25 23:13:37 2019
read: IOPS=27.5k, BW=108MiB/s (113MB/s)(6455MiB/60001msec)
slat (nsec): min=1944, max=141856, avg=3190.55, stdev=1236.42
clat (usec): min=38, max=3400, avg=140.69, stdev=38.49
lat (usec): min=87, max=3409, avg=144.14, stdev=38.33
clat percentiles (usec):
| 1.00th=[ 89], 5.00th=[ 90], 10.00th=[ 92], 20.00th=[ 110],
| 30.00th=[ 119], 40.00th=[ 122], 50.00th=[ 126], 60.00th=[ 141],
| 70.00th=[ 180], 80.00th=[ 188], 90.00th=[ 194], 95.00th=[ 196],
| 99.00th=[ 210], 99.50th=[ 217], 99.90th=[ 235], 99.95th=[ 260],
| 99.99th=[ 330]
bw ( KiB/s): min=82486, max=106675, per=78.69%, avg=86692.20, stdev=2303.95, samples=119
iops : min=20621, max=26668, avg=21672.66, stdev=575.96, samples=119
lat (usec) : 50=0.01%, 100=16.45%, 250=83.49%, 500=0.06%, 750=0.01%
lat (usec) : 1000=0.01%
lat (msec) : 2=0.01%, 4=0.01%
cpu : usr=2.81%, sys=13.08%, ctx=640048, majf=0, minf=33
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 rwt: total=1652583,0,0, short=0,0,0, dropped=0,0,0
latency : target=0, window=0, percentile=100.00%, depth=4
seq-write: (groupid=2, jobs=1): err= 0: pid=27960: Tue Jun 25 23:13:37 2019
write: IOPS=46.6k, BW=182MiB/s (191MB/s)(10.0GiB/56297msec)
slat (usec): min=2, max=138, avg= 4.49, stdev= 1.11
clat (usec): min=24, max=3779, avg=80.04, stdev=12.68
lat (usec): min=36, max=3783, avg=84.81, stdev=12.70
clat percentiles (usec):
| 1.00th=[ 56], 5.00th=[ 61], 10.00th=[ 62], 20.00th=[ 77],
| 30.00th=[ 78], 40.00th=[ 79], 50.00th=[ 83], 60.00th=[ 83],
| 70.00th=[ 84], 80.00th=[ 84], 90.00th=[ 94], 95.00th=[ 100],
| 99.00th=[ 101], 99.50th=[ 105], 99.90th=[ 128], 99.95th=[ 157],
| 99.99th=[ 247]
bw ( KiB/s): min=147046, max=184432, per=79.68%, avg=148402.88, stdev=3453.80, samples=112
iops : min=36761, max=46108, avg=37100.38, stdev=863.48, samples=112
lat (usec) : 50=0.19%, 100=97.79%, 250=2.01%, 500=0.01%, 750=0.01%
lat (usec) : 1000=0.01%
lat (msec) : 2=0.01%, 4=0.01%
cpu : usr=5.30%, sys=32.01%, ctx=2284664, majf=0, minf=24
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 rwt: total=0,2621440,0, short=0,0,0, dropped=0,0,0
latency : target=0, window=0, percentile=100.00%, depth=4
rand-write: (groupid=3, jobs=1): err= 0: pid=30622: Tue Jun 25 23:13:37 2019
write: IOPS=47.1k, BW=184MiB/s (193MB/s)(10.0GiB/55600msec)
slat (usec): min=2, max=140, avg= 5.92, stdev= 2.34
clat (usec): min=24, max=6253, avg=77.25, stdev=15.15
lat (usec): min=37, max=6258, avg=83.47, stdev=15.11
clat percentiles (usec):
| 1.00th=[ 52], 5.00th=[ 58], 10.00th=[ 59], 20.00th=[ 69],
| 30.00th=[ 75], 40.00th=[ 77], 50.00th=[ 79], 60.00th=[ 82],
| 70.00th=[ 83], 80.00th=[ 85], 90.00th=[ 90], 95.00th=[ 98],
| 99.00th=[ 101], 99.50th=[ 102], 99.90th=[ 115], 99.95th=[ 137],
| 99.99th=[ 239]
bw ( KiB/s): min=186408, max=189264, per=100.00%, avg=188599.49, stdev=461.99, samples=111
iops : min=46602, max=47316, avg=47149.85, stdev=115.51, samples=111
lat (usec) : 50=0.54%, 100=97.36%, 250=2.09%, 500=0.01%, 750=0.01%
lat (usec) : 1000=0.01%
lat (msec) : 2=0.01%, 4=0.01%, 10=0.01%
cpu : usr=8.17%, sys=39.60%, ctx=1885585, majf=0, minf=27
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 rwt: total=0,2621440,0, short=0,0,0, dropped=0,0,0
latency : target=0, window=0, percentile=100.00%, depth=4
Run status group 0 (all jobs):
READ: bw=248MiB/s (260MB/s), 248MiB/s-248MiB/s (260MB/s-260MB/s), io=10.0GiB (10.7GB), run=41247-41247msec
Run status group 1 (all jobs):
READ: bw=108MiB/s (113MB/s), 108MiB/s-108MiB/s (113MB/s-113MB/s), io=6455MiB (6769MB), run=60001-60001msec
Run status group 2 (all jobs):
WRITE: bw=182MiB/s (191MB/s), 182MiB/s-182MiB/s (191MB/s-191MB/s), io=10.0GiB (10.7GB), run=56297-56297msec
Run status group 3 (all jobs):
WRITE: bw=184MiB/s (193MB/s), 184MiB/s-184MiB/s (193MB/s-193MB/s), io=10.0GiB (10.7GB), run=55600-55600msec
Disk stats (read/write):
sdb: ios=4274017/5241504, merge=6/19, ticks=367082/405917, in_queue=772180, util=99.24%