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=1345: Sun Apr 12 12:49:26 2026
  write: IOPS=169k, BW=662MiB/s (694MB/s)(38.9GiB/60213msec); 0 zone resets
    clat (usec): min=2, max=562, avg= 3.05, stdev= 2.28
     lat (usec): min=2, max=562, avg= 3.14, stdev= 2.29
    clat percentiles (usec):
     |  1.00th=[    3],  5.00th=[    3], 10.00th=[    3], 20.00th=[    3],
     | 30.00th=[    3], 40.00th=[    3], 50.00th=[    3], 60.00th=[    3],
     | 70.00th=[    4], 80.00th=[    4], 90.00th=[    4], 95.00th=[    4],
     | 99.00th=[    5], 99.50th=[    6], 99.90th=[   15], 99.95th=[   18],
     | 99.99th=[  116]
   bw (  KiB/s): min=313440, max=962864, per=25.06%, avg=679464.40, stdev=121436.24, samples=119
   iops        : min=78360, max=240716, avg=169866.12, stdev=30359.08, samples=119
  lat (usec)   : 4=96.05%, 10=3.58%, 20=0.34%, 50=0.01%, 100=0.01%
  lat (usec)   : 250=0.01%, 500=0.01%, 750=0.01%
  cpu          : usr=14.39%, sys=61.20%, ctx=2177, 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=0,10197430,0,0 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=1346: Sun Apr 12 12:49:26 2026
  write: IOPS=169k, BW=658MiB/s (690MB/s)(38.7GiB/60213msec); 0 zone resets
    clat (usec): min=2, max=531, avg= 3.06, stdev= 2.24
     lat (usec): min=2, max=531, avg= 3.14, stdev= 2.25
    clat percentiles (usec):
     |  1.00th=[    3],  5.00th=[    3], 10.00th=[    3], 20.00th=[    3],
     | 30.00th=[    3], 40.00th=[    3], 50.00th=[    3], 60.00th=[    3],
     | 70.00th=[    4], 80.00th=[    4], 90.00th=[    4], 95.00th=[    4],
     | 99.00th=[    5], 99.50th=[    7], 99.90th=[   15], 99.95th=[   17],
     | 99.99th=[  116]
   bw (  KiB/s): min=232656, max=942712, per=24.95%, avg=676370.82, stdev=127997.60, samples=119
   iops        : min=58164, max=235678, avg=169092.72, stdev=31999.33, samples=119
  lat (usec)   : 4=95.91%, 10=3.73%, 20=0.34%, 50=0.01%, 100=0.01%
  lat (usec)   : 250=0.01%, 500=0.01%, 750=0.01%
  cpu          : usr=14.20%, sys=60.95%, ctx=1990, 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=0,10148236,0,0 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=1347: Sun Apr 12 12:49:26 2026
  write: IOPS=170k, BW=665MiB/s (697MB/s)(39.1GiB/60169msec); 0 zone resets
    clat (usec): min=2, max=1829, avg= 3.05, stdev= 2.29
     lat (usec): min=2, max=1829, avg= 3.14, stdev= 2.30
    clat percentiles (usec):
     |  1.00th=[    3],  5.00th=[    3], 10.00th=[    3], 20.00th=[    3],
     | 30.00th=[    3], 40.00th=[    3], 50.00th=[    3], 60.00th=[    3],
     | 70.00th=[    4], 80.00th=[    4], 90.00th=[    4], 95.00th=[    4],
     | 99.00th=[    5], 99.50th=[    6], 99.90th=[   15], 99.95th=[   17],
     | 99.99th=[  116]
   bw (  KiB/s): min=391576, max=929728, per=25.19%, avg=682896.00, stdev=120873.01, samples=119
   iops        : min=97894, max=232432, avg=170724.03, stdev=30218.29, samples=119
  lat (usec)   : 4=95.99%, 10=3.65%, 20=0.34%, 50=0.01%, 100=0.01%
  lat (usec)   : 250=0.01%, 500=0.01%
  lat (msec)   : 2=0.01%
  cpu          : usr=14.59%, sys=61.60%, ctx=1919, 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=0,10239657,0,0 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=1348: Sun Apr 12 12:49:26 2026
  write: IOPS=170k, BW=664MiB/s (696MB/s)(39.0GiB/60185msec); 0 zone resets
    clat (usec): min=2, max=428, avg= 3.10, stdev= 2.46
     lat (usec): min=2, max=429, avg= 3.18, stdev= 2.47
    clat percentiles (usec):
     |  1.00th=[    3],  5.00th=[    3], 10.00th=[    3], 20.00th=[    3],
     | 30.00th=[    3], 40.00th=[    3], 50.00th=[    3], 60.00th=[    4],
     | 70.00th=[    4], 80.00th=[    4], 90.00th=[    4], 95.00th=[    4],
     | 99.00th=[    5], 99.50th=[    7], 99.90th=[   15], 99.95th=[   18],
     | 99.99th=[  122]
   bw (  KiB/s): min=244672, max=915992, per=25.14%, avg=681574.33, stdev=123326.72, samples=120
   iops        : min=61168, max=228998, avg=170393.53, stdev=30831.67, samples=120
  lat (usec)   : 4=95.65%, 10=3.98%, 20=0.34%, 50=0.01%, 100=0.01%
  lat (usec)   : 250=0.01%, 500=0.01%
  cpu          : usr=13.27%, sys=61.91%, ctx=2208, 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=0,10223617,0,0 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=2647MiB/s (2776MB/s), 658MiB/s-665MiB/s (690MB/s-697MB/s), io=156GiB (167GB), run=60169-60213msec

Disk stats (read/write):
  vda: ios=5/367426, sectors=352/325985784, merge=0/110, ticks=0/3261461, in_queue=3261461, util=81.72%
