random-write: (g=0): rw=randwrite, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=4
...
fio-3.42
Starting 4 processes
random-write: Laying out IO file (1 file / 256MiB)
random-write: Laying out IO file (1 file / 256MiB)
random-write: Laying out IO file (1 file / 256MiB)
random-write: Laying out IO file (1 file / 256MiB)
note: both iodepth >= 1 and synchronous I/O engine are selected, queue depth will be capped at 1
note: both iodepth >= 1 and synchronous I/O engine are selected, queue depth will be capped at 1
note: both iodepth >= 1 and synchronous I/O engine are selected, queue depth will be capped at 1
note: both iodepth >= 1 and synchronous I/O engine are selected, queue depth will be capped at 1

random-write: (groupid=0, jobs=1): err= 0: pid=1226: Mon Aug 31 23:34:57 2026
  write: IOPS=122k, BW=476MiB/s (499MB/s)(28.0GiB/60254msec)
    clat (usec): min=2, max=1084, avg= 3.83, stdev= 2.57
     lat (usec): min=2, max=1084, avg= 3.91, stdev= 2.58
    clat percentiles (nsec):
     |  1.00th=[ 2864],  5.00th=[ 2928], 10.00th=[ 2960], 20.00th=[ 3024],
     | 30.00th=[ 3056], 40.00th=[ 3120], 50.00th=[ 3216], 60.00th=[ 3312],
     | 70.00th=[ 3824], 80.00th=[ 4384], 90.00th=[ 4832], 95.00th=[ 5984],
     | 99.00th=[12096], 99.50th=[14912], 99.90th=[21632], 99.95th=[25472],
     | 99.99th=[55040]
   bw (  KiB/s): min=91120, max=723048, per=25.41%, avg=489122.13, stdev=118920.35, samples=120
   iops        : min=22780, max=180762, avg=122280.47, stdev=29730.11, samples=120
  lat (usec)   : 4=72.20%, 10=26.12%, 20=1.53%, 50=0.13%, 100=0.01%
  lat (usec)   : 250=0.01%, 500=0.01%, 750=0.01%, 1000=0.01%
  lat (msec)   : 2=0.01%
  cpu          : usr=8.63%, sys=72.66%, ctx=4740, majf=0, minf=9
  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=0,7340033,0,0 short=0,0,0,0 dropped=0,0,0,0
     latency   : target=0.00ns, window=0.00ns, percentile=100.00%, depth=4
random-write: (groupid=0, jobs=1): err= 0: pid=1227: Mon Aug 31 23:34:57 2026
  write: IOPS=123k, BW=480MiB/s (504MB/s)(28.2GiB/60222msec)
    clat (usec): min=2, max=2165, avg= 3.76, stdev= 2.80
     lat (usec): min=2, max=2165, avg= 3.84, stdev= 2.81
    clat percentiles (nsec):
     |  1.00th=[ 2896],  5.00th=[ 2928], 10.00th=[ 2992], 20.00th=[ 3024],
     | 30.00th=[ 3056], 40.00th=[ 3120], 50.00th=[ 3184], 60.00th=[ 3248],
     | 70.00th=[ 3440], 80.00th=[ 4192], 90.00th=[ 4768], 95.00th=[ 6048],
     | 99.00th=[11840], 99.50th=[14784], 99.90th=[21376], 99.95th=[25216],
     | 99.99th=[68096]
   bw (  KiB/s): min=213584, max=749232, per=25.86%, avg=497636.20, stdev=106968.47, samples=119
   iops        : min=53396, max=187308, avg=124408.97, stdev=26742.11, samples=119
  lat (usec)   : 4=76.47%, 10=21.95%, 20=1.45%, 50=0.13%, 100=0.01%
  lat (usec)   : 250=0.01%, 500=0.01%, 750=0.01%
  lat (msec)   : 2=0.01%, 4=0.01%
  cpu          : usr=8.60%, sys=72.35%, ctx=5419, majf=0, minf=8
  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=0,7405569,0,0 short=0,0,0,0 dropped=0,0,0,0
     latency   : target=0.00ns, window=0.00ns, percentile=100.00%, depth=4
random-write: (groupid=0, jobs=1): err= 0: pid=1228: Mon Aug 31 23:34:57 2026
  write: IOPS=117k, BW=455MiB/s (477MB/s)(26.8GiB/60153msec)
    clat (usec): min=2, max=1397, avg= 3.88, stdev= 2.77
     lat (usec): min=2, max=1397, avg= 3.96, stdev= 2.79
    clat percentiles (nsec):
     |  1.00th=[ 2864],  5.00th=[ 2928], 10.00th=[ 2960], 20.00th=[ 3024],
     | 30.00th=[ 3088], 40.00th=[ 3152], 50.00th=[ 3216], 60.00th=[ 3376],
     | 70.00th=[ 4016], 80.00th=[ 4448], 90.00th=[ 4896], 95.00th=[ 6176],
     | 99.00th=[12224], 99.50th=[15040], 99.90th=[22144], 99.95th=[25728],
     | 99.99th=[66048]
   bw (  KiB/s): min=176320, max=724560, per=24.48%, avg=471226.66, stdev=109878.41, samples=119
   iops        : min=44080, max=181140, avg=117806.61, stdev=27469.60, samples=119
  lat (usec)   : 4=69.29%, 10=28.99%, 20=1.57%, 50=0.14%, 100=0.01%
  lat (usec)   : 250=0.01%, 500=0.01%, 750=0.01%, 1000=0.01%
  lat (msec)   : 2=0.01%
  cpu          : usr=8.55%, sys=70.39%, ctx=4632, majf=0, minf=9
  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=0,7012353,0,0 short=0,0,0,0 dropped=0,0,0,0
     latency   : target=0.00ns, window=0.00ns, percentile=100.00%, depth=4
random-write: (groupid=0, jobs=1): err= 0: pid=1229: Mon Aug 31 23:34:57 2026
  write: IOPS=120k, BW=469MiB/s (492MB/s)(27.6GiB/60189msec)
    clat (usec): min=2, max=2146, avg= 3.85, stdev= 3.13
     lat (usec): min=2, max=2146, avg= 3.93, stdev= 3.14
    clat percentiles (nsec):
     |  1.00th=[ 2864],  5.00th=[ 2928], 10.00th=[ 2992], 20.00th=[ 3056],
     | 30.00th=[ 3088], 40.00th=[ 3152], 50.00th=[ 3216], 60.00th=[ 3312],
     | 70.00th=[ 3696], 80.00th=[ 4384], 90.00th=[ 4896], 95.00th=[ 6304],
     | 99.00th=[12096], 99.50th=[14912], 99.90th=[22400], 99.95th=[26496],
     | 99.99th=[54528]
   bw (  KiB/s): min=143752, max=732920, per=25.22%, avg=485347.97, stdev=104122.39, samples=118
   iops        : min=35938, max=183230, avg=121336.92, stdev=26030.62, samples=118
  lat (usec)   : 4=72.92%, 10=25.40%, 20=1.53%, 50=0.15%, 100=0.01%
  lat (usec)   : 250=0.01%, 500=0.01%, 750=0.01%
  lat (msec)   : 2=0.01%, 4=0.01%
  cpu          : usr=8.50%, sys=72.32%, ctx=5047, majf=0, minf=7
  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=0,7233357,0,0 short=0,0,0,0 dropped=0,0,0,0
     latency   : target=0.00ns, window=0.00ns, percentile=100.00%, depth=4

Run status group 0 (all jobs):
  WRITE: bw=1879MiB/s (1971MB/s), 455MiB/s-480MiB/s (477MB/s-504MB/s), io=111GiB (119GB), run=60153-60254msec

Disk stats (read/write):
  vda: ios=1/293210, sectors=8/231456096, merge=0/358, ticks=0/4238512, in_queue=4238512, util=75.18%
