Io tests

apt install fio

#!/usr/bin/env bash

set -o errexit

echo $(date):Random read
fio --filename=test --sync=1 --rw=randread --bs=4k --numjobs=1 \
  --iodepth=4 --group_reporting --name=test --filesize=10G --runtime=300 && rm test

echo $(date):Random write
fio --filename=test --sync=1 --rw=randwrite --bs=4k --numjobs=1 \
  --iodepth=4 --group_reporting --name=test --filesize=10G --runtime=300 && rm test

echo $(date):Sequential read
fio --filename=test --sync=1 --rw=read --bs=4k --numjobs=1 \
  --iodepth=4 --group_reporting --name=test --filesize=10G --runtime=300 && rm test

echo $(date):Sequential write
fio --filename=test --sync=1 --rw=write --bs=4k --numjobs=1 \
  --iodepth=4 --group_reporting --name=test --filesize=10G --runtime=300 && rm test

Output example

Sat Nov 25 16:25:47 UTC 2023:Random read
test: (g=0): rw=randread, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=4
fio-3.28
Starting 1 process
test: Laying out IO file (1 file / 10240MiB)
Jobs: 1 (f=1): [r(1)][98.7%][r=130MiB/s][r=33.3k IOPS][eta 00m:02s]
test: (groupid=0, jobs=1): err= 0: pid=1894: Sat Nov 25 16:29:04 2023
  read: IOPS=17.7k, BW=69.2MiB/s (72.6MB/s)(10.0GiB/147882msec)
    clat (usec): min=3, max=9506, avg=55.42, stdev=23.89
     lat (usec): min=3, max=9506, avg=55.49, stdev=23.91
    clat percentiles (usec):
     |  1.00th=[    6],  5.00th=[    7], 10.00th=[   45], 20.00th=[   53],
     | 30.00th=[   57], 40.00th=[   58], 50.00th=[   59], 60.00th=[   62],
     | 70.00th=[   64], 80.00th=[   66], 90.00th=[   68], 95.00th=[   70],
     | 99.00th=[   74], 99.50th=[   75], 99.90th=[   80], 99.95th=[   83],
     | 99.99th=[ 1614]
   bw (  KiB/s): min=64224, max=175456, per=99.56%, avg=70592.32, stdev=9296.71, samples=295
   iops        : min=16056, max=43864, avg=17648.03, stdev=2324.16, samples=295
  lat (usec)   : 4=0.06%, 10=8.27%, 20=0.02%, 50=8.75%, 100=82.87%
  lat (usec)   : 250=0.01%, 500=0.01%, 750=0.01%
  lat (msec)   : 2=0.01%, 10=0.01%
  cpu          : usr=3.31%, sys=96.66%, ctx=822, majf=14, minf=15
  IO depths    : 1=100.0%, 2=0.0%, 4=0.0%, 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 rwts: total=2621440,0,0,0 short=0,0,0,0 dropped=0,0,0,0
     latency   : target=0, window=0, percentile=100.00%, depth=4

Run status group 0 (all jobs):
   READ: bw=69.2MiB/s (72.6MB/s), 69.2MiB/s-69.2MiB/s (72.6MB/s-72.6MB/s), io=10.0GiB (10.7GB), run=147882-147882msec