sequential-write: (g=0): rw=write, bs=(R) 4096KiB-4096KiB, (W) 4096KiB-4096KiB, (T) 4096KiB-4096KiB, ioengine=libaio, iodepth=256
sequential-read: (g=1): rw=read, bs=(R) 4096KiB-4096KiB, (W) 4096KiB-4096KiB, (T) 4096KiB-4096KiB, ioengine=libaio, iodepth=256
fio-3.25
Starting 2 processes
sequential-write: Laying out IO file (1 file / 8192MiB)
sequential-read: Laying out IO file (1 file / 8192MiB)

sequential-write: (groupid=0, jobs=1): err= 0: pid=10384: Thu Feb 17 15:24:09 2022
  write: IOPS=137, BW=656MiB/s (688MB/s)(6360MiB/9695msec); 0 zone resets
   bw (  KiB/s): min=90292, max=837258, per=85.79%, avg=576288.47, stdev=184235.98, samples=19
   iops        : min=   22, max=  204, avg=140.53, stdev=44.88, samples=19
  cpu          : usr=2.84%, sys=1.17%, ctx=230, majf=0, minf=58
  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=99.9%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.1%
     issued rwts: total=0,1335,0,0 short=0,0,0,0 dropped=0,0,0,0
     latency   : target=0, window=0, percentile=100.00%, depth=256
sequential-read: (groupid=1, jobs=1): err= 0: pid=10386: Thu Feb 17 15:24:09 2022
  read: IOPS=125, BW=589MiB/s (618MB/s)(6864MiB/11647msec)
   bw (  KiB/s): min=16416, max=1384448, per=100.00%, avg=704819.76, stdev=493840.31, samples=17
   iops        : min=    4, max=  338, avg=171.88, stdev=120.41, samples=17
  cpu          : usr=0.14%, sys=1.65%, ctx=718, majf=0, minf=58
  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=99.9%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.1%
     issued rwts: total=1461,0,0,0 short=0,0,0,0 dropped=0,0,0,0
     latency   : target=0, window=0, percentile=100.00%, depth=256

Run status group 0 (all jobs):
  WRITE: bw=656MiB/s (688MB/s), 656MiB/s-656MiB/s (688MB/s-688MB/s), io=6360MiB (6669MB), run=9695-9695msec

Run status group 1 (all jobs):
   READ: bw=589MiB/s (618MB/s), 589MiB/s-589MiB/s (618MB/s-618MB/s), io=6864MiB (7197MB), run=11647-11647msec

Disk stats (read/write):
  vda: ios=8100/8201, merge=0/6, ticks=3874659/3872192, in_queue=7756192, util=96.41%