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=1256: Mon Aug 31 20:36:18 2026
  write: IOPS=86.9k, BW=339MiB/s (356MB/s)(20.0GiB/60355msec)
    clat (nsec): min=1875, max=30215k, avg=5909.76, stdev=78889.41
     lat (nsec): min=1977, max=30215k, avg=6048.28, stdev=79323.83
    clat percentiles (usec):
     |  1.00th=[    3],  5.00th=[    3], 10.00th=[    3], 20.00th=[    4],
     | 30.00th=[    4], 40.00th=[    4], 50.00th=[    5], 60.00th=[    5],
     | 70.00th=[    6], 80.00th=[    6], 90.00th=[    6], 95.00th=[    7],
     | 99.00th=[   16], 99.50th=[   19], 99.90th=[   79], 99.95th=[  375],
     | 99.99th=[ 3130]
   bw (  KiB/s): min=16377, max=701768, per=25.51%, avg=348748.82, stdev=149945.73, samples=120
   iops        : min= 4094, max=175442, avg=87187.11, stdev=37486.43, samples=120
  lat (usec)   : 2=0.04%, 4=40.05%, 10=57.73%, 20=1.74%, 50=0.29%
  lat (usec)   : 100=0.06%, 250=0.03%, 500=0.01%, 750=0.01%, 1000=0.01%
  lat (msec)   : 2=0.01%, 4=0.02%, 10=0.01%, 20=0.01%, 50=0.01%
  cpu          : usr=10.32%, sys=42.78%, ctx=6851, majf=0, minf=6
  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=0,5242881,0,0 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=1257: Mon Aug 31 20:36:18 2026
  write: IOPS=85.4k, BW=333MiB/s (350MB/s)(19.7GiB/60603msec)
    clat (nsec): min=1873, max=62438k, avg=6004.14, stdev=87770.15
     lat (nsec): min=1975, max=62438k, avg=6153.50, stdev=88397.86
    clat percentiles (usec):
     |  1.00th=[    3],  5.00th=[    3], 10.00th=[    3], 20.00th=[    4],
     | 30.00th=[    4], 40.00th=[    4], 50.00th=[    5], 60.00th=[    5],
     | 70.00th=[    5], 80.00th=[    6], 90.00th=[    6], 95.00th=[    7],
     | 99.00th=[   15], 99.50th=[   18], 99.90th=[   82], 99.95th=[  519],
     | 99.99th=[ 3294]
   bw (  KiB/s): min=23889, max=650248, per=25.85%, avg=353505.55, stdev=134994.17, samples=116
   iops        : min= 5972, max=162562, avg=88376.28, stdev=33748.57, samples=116
  lat (usec)   : 2=0.04%, 4=41.52%, 10=56.34%, 20=1.69%, 50=0.26%
  lat (usec)   : 100=0.06%, 250=0.03%, 500=0.01%, 750=0.01%, 1000=0.01%
  lat (msec)   : 2=0.01%, 4=0.03%, 10=0.01%, 20=0.01%, 50=0.01%
  lat (msec)   : 100=0.01%
  cpu          : usr=9.97%, sys=41.60%, ctx=6852, 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=0,5172745,0,0 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=1258: Mon Aug 31 20:36:18 2026
  write: IOPS=86.1k, BW=336MiB/s (353MB/s)(19.9GiB/60667msec)
    clat (nsec): min=1887, max=446288k, avg=6000.27, stdev=213345.33
     lat (nsec): min=1992, max=446288k, avg=6140.73, stdev=213556.76
    clat percentiles (usec):
     |  1.00th=[    3],  5.00th=[    3], 10.00th=[    3], 20.00th=[    4],
     | 30.00th=[    4], 40.00th=[    4], 50.00th=[    5], 60.00th=[    5],
     | 70.00th=[    5], 80.00th=[    6], 90.00th=[    6], 95.00th=[    7],
     | 99.00th=[   16], 99.50th=[   19], 99.90th=[   77], 99.95th=[  404],
     | 99.99th=[ 3195]
   bw (  KiB/s): min= 4144, max=702984, per=25.62%, avg=350329.66, stdev=150458.94, samples=118
   iops        : min= 1036, max=175746, avg=87582.31, stdev=37614.73, samples=118
  lat (usec)   : 2=0.02%, 4=41.59%, 10=56.16%, 20=1.79%, 50=0.31%
  lat (usec)   : 100=0.05%, 250=0.02%, 500=0.02%, 750=0.01%, 1000=0.01%
  lat (msec)   : 2=0.01%, 4=0.02%, 10=0.01%, 20=0.01%, 50=0.01%
  lat (msec)   : 500=0.01%
  cpu          : usr=10.12%, sys=42.47%, ctx=7516, 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=0,5225094,0,0 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=1259: Mon Aug 31 20:36:18 2026
  write: IOPS=84.0k, BW=328MiB/s (344MB/s)(19.4GiB/60663msec)
    clat (nsec): min=1838, max=60960k, avg=6076.71, stdev=85057.58
     lat (nsec): min=1942, max=60960k, avg=6221.51, stdev=85654.47
    clat percentiles (usec):
     |  1.00th=[    3],  5.00th=[    3], 10.00th=[    3], 20.00th=[    4],
     | 30.00th=[    4], 40.00th=[    4], 50.00th=[    5], 60.00th=[    5],
     | 70.00th=[    5], 80.00th=[    6], 90.00th=[    6], 95.00th=[    7],
     | 99.00th=[   16], 99.50th=[   20], 99.90th=[   95], 99.95th=[  553],
     | 99.99th=[ 3294]
   bw (  KiB/s): min= 9360, max=717400, per=25.26%, avg=345338.00, stdev=150714.97, samples=117
   iops        : min= 2340, max=179350, avg=86334.38, stdev=37678.73, samples=117
  lat (usec)   : 2=0.08%, 4=41.52%, 10=56.12%, 20=1.79%, 50=0.32%
  lat (usec)   : 100=0.06%, 250=0.03%, 500=0.01%, 750=0.01%, 1000=0.01%
  lat (msec)   : 2=0.01%, 4=0.03%, 10=0.01%, 20=0.01%, 50=0.01%
  lat (msec)   : 100=0.01%
  cpu          : usr=9.90%, sys=41.45%, ctx=7337, majf=0, minf=6
  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=0,5096244,0,0 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=1335MiB/s (1400MB/s), 328MiB/s-339MiB/s (344MB/s-356MB/s), io=79.1GiB (84.9GB), run=60355-60667msec

Disk stats (read/write):
  vda: ios=1/729526, sectors=8/165401248, merge=0/2422, ticks=0/2800448, in_queue=2800453, util=88.76%
