Составляю топ программ по проверке скорости ssd-дисков

# sudo hdparm -tT /dev/sd?

$fio --directory=/mnt --name=test --rw=write --bs=4k --size=10G --numjobs=1 --group_reporting --ioengine libaio --iodepth=32 --buffered=0 --direct=1
test: (g=0): rw=write, bs=4K-4K/4K-4K/4K-4K, ioengine=libaio, iodepth=32
fio-2.16
Starting 1 process
test: Laying out IO file(s) (1 file(s) / 10240MB)
Jobs: 1 (f=1): [W(1)] [100.0% done] [0KB/266.4MB/0KB /s] [0/68.2K/0 iops] [eta 00m:00s]
test: (groupid=0, jobs=1): err= 0: pid=14944: Sat Mar 10 18:01:53 2018
  write: io=10240MB, bw=216090KB/s, iops=54022, runt= 48525msec
    slat (usec): min=5, max=459, avg= 8.58, stdev= 3.67
    clat (usec): min=180, max=159820, avg=582.91, stdev=3043.12
     lat (usec): min=241, max=159828, avg=591.49, stdev=3043.47
    clat percentiles (usec):
     |  1.00th=[  406],  5.00th=[  422], 10.00th=[  422], 20.00th=[  426],
     | 30.00th=[  426], 40.00th=[  426], 50.00th=[  426], 60.00th=[  430],
     | 70.00th=[  438], 80.00th=[  446], 90.00th=[  466], 95.00th=[  494],
     | 99.00th=[  700], 99.50th=[  916], 99.90th=[66048], 99.95th=[66048],
     | 99.99th=[84480]
    lat (usec) : 250=0.01%, 500=95.44%, 750=3.75%, 1000=0.37%
    lat (msec) : 2=0.16%, 4=0.03%, 10=0.02%, 20=0.01%, 50=0.03%
    lat (msec) : 100=0.19%, 250=0.01%
  cpu          : usr=9.32%, sys=48.56%, ctx=224857, majf=0, minf=11
  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    : 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=32

Run status group 0 (all jobs):
  WRITE: io=10240MB, aggrb=216089KB/s, minb=216089KB/s, maxb=216089KB/s, mint=48525msec, maxt=48525msec

Disk stats (read/write):
  sda: ios=0/254531, merge=0/2358015, ticks=0/136528, in_queue=136456, util=99.72%