fio output

output

$ sudo fio --randrepeat=1 --ioengine=libaio --direct=1 --gtod_reduce=1 --name=fiotest --filename=testfio --bs=4k --iodepth=64 --size=8G --readwrite=randrw --rwmixread=75
fiotest: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=libaio, iodepth=64
fio-3.16
Starting 1 process
fiotest: Laying out IO file (1 file / 8192MiB)
Jobs: 1 (f=1): [m(1)][100.0%][r=511MiB/s,w=170MiB/s][r=131k,w=43.4k IOPS][eta 00m:00s]
fiotest: (groupid=0, jobs=1): err= 0: pid=2634098: Fri Feb 25 20:47:34 2022
  read: IOPS=130k, BW=510MiB/s (534MB/s)(6141MiB/12049msec)
   bw (  KiB/s): min=465664, max=565208, per=99.99%, avg=521844.38, stdev=27636.21, samples=24
   iops        : min=116416, max=141302, avg=130461.08, stdev=6909.07, samples=24
  write: IOPS=43.6k, BW=170MiB/s (178MB/s)(2051MiB/12049msec); 0 zone resets
   bw (  KiB/s): min=155193, max=190856, per=99.99%, avg=174266.38, stdev=9273.94, samples=24
   iops        : min=38798, max=47714, avg=43566.58, stdev=2318.51, samples=24
  cpu          : usr=26.00%, sys=71.55%, ctx=20459, majf=0, minf=8
  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=1572145,525007,0,0 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=510MiB/s (534MB/s), 510MiB/s-510MiB/s (534MB/s-534MB/s), io=6141MiB (6440MB), run=12049-12049msec
  WRITE: bw=170MiB/s (178MB/s), 170MiB/s-170MiB/s (178MB/s-178MB/s), io=2051MiB (2150MB), run=12049-12049msec

Disk stats (read/write):
  nvme0n1: ios=1562562/521722, merge=0/37, ticks=329250/4619, in_queue=5180, util=99.79%