random-write: (g=0): rw=randwrite, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=4
...
fio-3.41
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=1287: Sun Apr 12 13:01:35 2026
  write: IOPS=206k, BW=806MiB/s (845MB/s)(47.4GiB/60173msec); 0 zone resets
    clat (nsec): min=790, max=370410, avg=1473.22, stdev=1446.90
     lat (nsec): min=840, max=809380, avg=1521.92, stdev=1471.69
    clat percentiles (nsec):
     |  1.00th=[ 1032],  5.00th=[ 1096], 10.00th=[ 1144], 20.00th=[ 1208],
     | 30.00th=[ 1256], 40.00th=[ 1304], 50.00th=[ 1352], 60.00th=[ 1400],
     | 70.00th=[ 1464], 80.00th=[ 1560], 90.00th=[ 1768], 95.00th=[ 2256],
     | 99.00th=[ 3216], 99.50th=[ 3792], 99.90th=[11840], 99.95th=[13760],
     | 99.99th=[27008]
   bw (  KiB/s): min=523241, max=1079488, per=25.23%, avg=828045.31, stdev=205006.24, samples=119
   iops        : min=130810, max=269874, avg=207011.32, stdev=51251.58, samples=119
  lat (nsec)   : 1000=0.45%
  lat (usec)   : 2=92.72%, 4=6.40%, 10=0.26%, 20=0.16%, 50=0.01%
  lat (usec)   : 100=0.01%, 250=0.01%, 500=0.01%
  cpu          : usr=8.40%, sys=46.27%, ctx=4992, 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=0,12419789,0,0 short=0,0,0,0 dropped=0,0,0,0
     latency   : target=0, window=0, percentile=100.00%, depth=4
random-write: (groupid=0, jobs=1): err= 0: pid=1288: Sun Apr 12 13:01:35 2026
  write: IOPS=202k, BW=789MiB/s (827MB/s)(46.4GiB/60188msec); 0 zone resets
    clat (nsec): min=800, max=1187.9k, avg=1480.80, stdev=1572.94
     lat (nsec): min=850, max=1188.0k, avg=1532.89, stdev=1578.04
    clat percentiles (nsec):
     |  1.00th=[ 1020],  5.00th=[ 1096], 10.00th=[ 1144], 20.00th=[ 1208],
     | 30.00th=[ 1256], 40.00th=[ 1304], 50.00th=[ 1352], 60.00th=[ 1416],
     | 70.00th=[ 1480], 80.00th=[ 1576], 90.00th=[ 1800], 95.00th=[ 2256],
     | 99.00th=[ 3248], 99.50th=[ 3824], 99.90th=[11968], 99.95th=[14016],
     | 99.99th=[26240]
   bw (  KiB/s): min=523241, max=1051240, per=24.74%, avg=812037.13, stdev=200232.82, samples=119
   iops        : min=130810, max=262810, avg=203009.20, stdev=50058.18, samples=119
  lat (nsec)   : 1000=0.49%
  lat (usec)   : 2=92.51%, 4=6.55%, 10=0.26%, 20=0.16%, 50=0.01%
  lat (usec)   : 100=0.01%, 250=0.01%, 500=0.01%, 750=0.01%, 1000=0.01%
  lat (msec)   : 2=0.01%
  cpu          : usr=8.89%, sys=45.51%, ctx=4667, 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=0,12155370,0,0 short=0,0,0,0 dropped=0,0,0,0
     latency   : target=0, window=0, percentile=100.00%, depth=4
random-write: (groupid=0, jobs=1): err= 0: pid=1289: Sun Apr 12 13:01:35 2026
  write: IOPS=207k, BW=807MiB/s (846MB/s)(47.4GiB/60188msec); 0 zone resets
    clat (nsec): min=790, max=1042.2k, avg=1468.33, stdev=1538.16
     lat (nsec): min=840, max=1042.2k, avg=1517.04, stdev=1544.06
    clat percentiles (nsec):
     |  1.00th=[ 1020],  5.00th=[ 1096], 10.00th=[ 1144], 20.00th=[ 1192],
     | 30.00th=[ 1240], 40.00th=[ 1288], 50.00th=[ 1336], 60.00th=[ 1400],
     | 70.00th=[ 1464], 80.00th=[ 1560], 90.00th=[ 1768], 95.00th=[ 2256],
     | 99.00th=[ 3184], 99.50th=[ 3792], 99.90th=[11968], 99.95th=[14016],
     | 99.99th=[28800]
   bw (  KiB/s): min=375992, max=1093720, per=25.27%, avg=829569.71, stdev=205645.04, samples=119
   iops        : min=93998, max=273430, avg=207392.34, stdev=51411.27, samples=119
  lat (nsec)   : 1000=0.42%
  lat (usec)   : 2=92.80%, 4=6.34%, 10=0.26%, 20=0.16%, 50=0.01%
  lat (usec)   : 100=0.01%, 250=0.01%, 500=0.01%
  lat (msec)   : 2=0.01%
  cpu          : usr=8.38%, sys=46.15%, ctx=4618, 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=0,12431667,0,0 short=0,0,0,0 dropped=0,0,0,0
     latency   : target=0, window=0, percentile=100.00%, depth=4
random-write: (groupid=0, jobs=1): err= 0: pid=1290: Sun Apr 12 13:01:35 2026
  write: IOPS=206k, BW=806MiB/s (845MB/s)(47.2GiB/60039msec); 0 zone resets
    clat (nsec): min=790, max=2047.9k, avg=1468.17, stdev=1720.72
     lat (nsec): min=840, max=2048.1k, avg=1517.39, stdev=1727.77
    clat percentiles (nsec):
     |  1.00th=[ 1012],  5.00th=[ 1080], 10.00th=[ 1128], 20.00th=[ 1192],
     | 30.00th=[ 1240], 40.00th=[ 1288], 50.00th=[ 1336], 60.00th=[ 1384],
     | 70.00th=[ 1464], 80.00th=[ 1560], 90.00th=[ 1768], 95.00th=[ 2256],
     | 99.00th=[ 3216], 99.50th=[ 3824], 99.90th=[11840], 99.95th=[14144],
     | 99.99th=[32384]
   bw (  KiB/s): min=482512, max=1127800, per=25.15%, avg=825486.80, stdev=200285.57, samples=119
   iops        : min=120628, max=281950, avg=206371.63, stdev=50071.33, samples=119
  lat (nsec)   : 1000=0.69%
  lat (usec)   : 2=92.20%, 4=6.66%, 10=0.27%, 20=0.16%, 50=0.01%
  lat (usec)   : 100=0.01%, 250=0.01%, 500=0.01%, 750=0.01%
  lat (msec)   : 2=0.01%, 4=0.01%
  cpu          : usr=8.52%, sys=45.87%, ctx=4764, 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=0,12386305,0,0 short=0,0,0,0 dropped=0,0,0,0
     latency   : target=0, window=0, percentile=100.00%, depth=4

Run status group 0 (all jobs):
  WRITE: bw=3206MiB/s (3361MB/s), 789MiB/s-807MiB/s (827MB/s-846MB/s), io=188GiB (202GB), run=60039-60188msec

Disk stats (read/write):
  vda: ios=49/429018, sectors=5960/394943544, merge=659/343, ticks=17/3440536, in_queue=3440554, util=89.98%
