На всякий случай приведу пример вывода для моего домашнего компа 15-летней давности, где я поднял виртуалку для теста
Код:
random-read: (g=0): rw=randread, bs=(R) 8192B-8192B, (W) 8192B-8192B, (T) 8192B-8192B, ioengine=libaio, iodepth=64
...
random-write: (g=0): rw=randwrite, bs=(R) 8192B-8192B, (W) 8192B-8192B, (T) 8192B-8192B, ioengine=libaio, iodepth=64
...
fio-3.35
Starting 8 processes
random-read: Laying out IO file (1 file / 10240MiB)
Jobs: 8 (f=8): [r(4),w(4)][26.6%][r=107MiB/s,w=104MiB/s][r=13.7k,w=13.2k IOPS][eta 03m:16s]
random-read: (groupid=0, jobs=8): err= 0: pid=6383: Fri Mar 14 15:18:15 2025
read: IOPS=20.7k, BW=162MiB/s (169MB/s)(9696MiB/60017msec)
slat (usec): min=2, max=543195, avg=68.02, stdev=1733.20
clat (usec): min=48, max=1090.4k, avg=12310.68, stdev=24014.87
lat (usec): min=56, max=1090.4k, avg=12378.70, stdev=24139.37
clat percentiles (usec):
| 1.00th=[ 1004], 5.00th=[ 1958], 10.00th=[ 2540], 20.00th=[ 3392],
| 30.00th=[ 4178], 40.00th=[ 5014], 50.00th=[ 5866], 60.00th=[ 7046],
| 70.00th=[ 9110], 80.00th=[ 14615], 90.00th=[ 28967], 95.00th=[ 45876],
| 99.00th=[ 81265], 99.50th=[108528], 99.90th=[291505], 99.95th=[541066],
| 99.99th=[557843]
bw ( KiB/s): min= 3712, max=365787, per=100.00%, avg=166115.84, stdev=21606.44, samples=476
iops : min= 464, max=45723, avg=20764.24, stdev=2700.81, samples=476
write: IOPS=21.1k, BW=165MiB/s (173MB/s)(9893MiB/60018msec); 0 zone resets
slat (usec): min=2, max=543563, avg=53.25, stdev=1165.72
clat (usec): min=3, max=1091.4k, avg=12078.05, stdev=23777.57
lat (usec): min=114, max=1091.4k, avg=12131.31, stdev=23814.02
clat percentiles (usec):
| 1.00th=[ 1287], 5.00th=[ 2212], 10.00th=[ 2769], 20.00th=[ 3523],
| 30.00th=[ 4228], 40.00th=[ 4883], 50.00th=[ 5604], 60.00th=[ 6587],
| 70.00th=[ 8160], 80.00th=[ 12518], 90.00th=[ 31065], 95.00th=[ 47449],
| 99.00th=[ 80217], 99.50th=[103285], 99.90th=[274727], 99.95th=[541066],
| 99.99th=[549454]
bw ( KiB/s): min= 3264, max=345872, per=100.00%, avg=169630.80, stdev=21307.03, samples=476
iops : min= 408, max=43234, avg=21203.76, stdev=2663.37, samples=476
lat (usec) : 4=0.01%, 50=0.01%, 100=0.01%, 250=0.02%, 500=0.16%
lat (usec) : 750=0.20%, 1000=0.33%
lat (msec) : 2=3.77%, 4=22.91%, 10=46.95%, 20=11.03%, 50=10.47%
lat (msec) : 100=3.61%, 250=0.46%, 500=0.04%, 750=0.07%, 1000=0.01%
lat (msec) : 2000=0.01%
cpu : usr=1.49%, sys=3.53%, ctx=567695, majf=0, minf=291
IO depths : 1=0.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=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=1240890,1266082,0,0 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):
READ: bw=162MiB/s (169MB/s), 162MiB/s-162MiB/s (169MB/s-169MB/s), io=9696MiB (10.2GB), run=60017-60017msec
WRITE: bw=165MiB/s (173MB/s), 165MiB/s-165MiB/s (173MB/s-173MB/s), io=9893MiB (10.4GB), run=60018-60018msec
Disk stats (read/write):
dm-0: ios=1536475/1566876, merge=0/0, ticks=15416935/15054332, in_queue=30471267, util=99.93%, aggrios=1536661/1566977, aggrmerge=0/10, aggrticks=15361246/15019793, aggrin_queue=30381044, aggrutil=80.31%
vda: ios=1536661/1566977, merge=0/10, ticks=15361246/15019793, in_queue=30381044, util=80.31%