sudo fio --randrepeat=1 --ioengine=libaio --direct=1 --gtod_reduce=1 --name=test --filename=test --bs=4k --iodepth=64 --size=4G --readwrite=randwrite ./
test: (g=0): rw=randwrite, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=libaio, iodepth=64
fio-3.23
Starting 1 process
test: Laying out IO file (1 file / 4096MiB)
Jobs: 1 (f=1): [w(1)][100.0%][w=10.9MiB/s][w=2799 IOPS][eta 00m:00s]
test: (groupid=0, jobs=1): err= 0: pid=4113: Wed May 25 20:00:57 2022
write: IOPS=1874, BW=7497KiB/s (7677kB/s)(4096MiB/559454msec); 0 zone resets
bw ( KiB/s): min= 464, max=26272, per=100.00%, avg=7507.96, stdev=2497.55, samples=1117
iops : min= 116, max= 6568, avg=1876.99, stdev=624.39, samples=1117
cpu : usr=0.59%, sys=3.50%, ctx=1010598, majf=0, minf=7
IO depths : 1=0.1%, 2=0.1%, 4=0.1%, 8=0.1%, 16=0.1%, 32=0.1%, >=64=100.0%
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=0.1%, >=64=0.0%
issued rwts: total=0,1048576,0,0 short=0,0,0,0 dropped=0,0,0,0
latency : target=0, window=0, percentile=100.00%, depth=64
Run status group 0 (all jobs):
WRITE: bw=7497KiB/s (7677kB/s), 7497KiB/s-7497KiB/s (7677kB/s-7677kB/s), io=4096MiB (4295MB), run=559454-559454msec
Disk stats (read/write):
sdf: ios=0/1056676, merge=0/220462, ticks=0/25605034, in_queue=25642658, util=100.00%
sudo fio --randrepeat=1 --ioengine=libaio --direct=1 --gtod_reduce=1 --name=test --filename=test --bs=4k --iodepth=32 --size=1G --readwrite=randwrite ./
test: (g=0): rw=randwrite, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=libaio, iodepth=32
fio-3.23
Starting 1 process
test: Laying out IO file (1 file / 1024MiB)
Jobs: 1 (f=1): [w(1)][100.0%][w=16.6MiB/s][w=4246 IOPS][eta 00m:00s]
test: (groupid=0, jobs=1): err= 0: pid=6007: Wed May 25 20:03:38 2022
write: IOPS=4254, BW=16.6MiB/s (17.4MB/s)(1024MiB/61612msec); 0 zone resets
bw ( KiB/s): min= 2688, max=25608, per=100.00%, avg=17040.91, stdev=3516.98, samples=123
iops : min= 672, max= 6402, avg=4260.23, stdev=879.24, samples=123
cpu : usr=1.65%, sys=6.53%, ctx=244825, majf=0, minf=6
IO depths : 1=0.1%, 2=0.1%, 4=0.1%, 8=0.1%, 16=0.1%, 32=100.0%, >=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=0.1%, 64=0.0%, >=64=0.0%
issued rwts: total=0,262144,0,0 short=0,0,0,0 dropped=0,0,0,0
latency : target=0, window=0, percentile=100.00%, depth=32
Run status group 0 (all jobs):
WRITE: bw=16.6MiB/s (17.4MB/s), 16.6MiB/s-16.6MiB/s (17.4MB/s-17.4MB/s), io=1024MiB (1074MB), run=61612-61612msec
Disk stats (read/write):
sdf: ios=0/261272, merge=0/6349, ticks=0/1930953, in_queue=1936241, util=99.93%