fio ex101

Jobs: 16 (f=16): [m(16)][100.0%][r=1458MiB/s,w=1461MiB/s][r=373k,w=374k IOPS][eta 00m:00s]
test: (groupid=0, jobs=16): err= 0: pid=1054191: Fri Apr 19 23:36:43 2024
  read: IOPS=381k, BW=1490MiB/s (1562MB/s)(21.8GiB/15001msec)
    slat (nsec): min=1343, max=1438.3k, avg=2925.08, stdev=2600.60
    clat (usec): min=20, max=3460, avg=297.31, stdev=138.23
     lat (usec): min=32, max=3461, avg=300.23, stdev=138.26
    clat percentiles (usec):
     |  1.00th=[  103],  5.00th=[  128], 10.00th=[  145], 20.00th=[  174],
     | 30.00th=[  206], 40.00th=[  239], 50.00th=[  273], 60.00th=[  310],
     | 70.00th=[  351], 80.00th=[  404], 90.00th=[  482], 95.00th=[  553],
     | 99.00th=[  709], 99.50th=[  775], 99.90th=[  947], 99.95th=[ 1045],
     | 99.99th=[ 1401]
   bw (  MiB/s): min= 1424, max= 1555, per=100.00%, avg=1491.88, stdev= 2.45, samples=464
   iops        : min=364580, max=398128, avg=381921.17, stdev=627.23, samples=464
  write: IOPS=382k, BW=1491MiB/s (1563MB/s)(21.8GiB/15001msec); 0 zone resets
    slat (usec): min=2, max=1984, avg= 4.63, stdev= 3.67
    clat (usec): min=22, max=13346, avg=365.00, stdev=109.05
     lat (usec): min=26, max=13351, avg=369.63, stdev=108.99
    clat percentiles (usec):
     |  1.00th=[  184],  5.00th=[  235], 10.00th=[  265], 20.00th=[  293],
     | 30.00th=[  314], 40.00th=[  334], 50.00th=[  351], 60.00th=[  371],
     | 70.00th=[  396], 80.00th=[  433], 90.00th=[  486], 95.00th=[  537],
     | 99.00th=[  635], 99.50th=[  676], 99.90th=[  840], 99.95th=[ 1401],
     | 99.99th=[ 3294]
   bw (  MiB/s): min= 1421, max= 1555, per=100.00%, avg=1492.68, stdev= 2.43, samples=464
   iops        : min=363782, max=398206, avg=382125.31, stdev=621.38, samples=464
  lat (usec)   : 50=0.01%, 100=0.44%, 250=24.83%, 500=66.44%, 750=7.86%
  lat (usec)   : 1000=0.36%
  lat (msec)   : 2=0.05%, 4=0.01%, 10=0.01%, 20=0.01%
  cpu          : usr=4.46%, sys=21.09%, ctx=8957848, majf=0, minf=221
  IO depths    : 1=0.1%, 2=0.1%, 4=0.1%, 8=0.1%, 16=100.0%, 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=0.1%, 32=0.0%, 64=0.0%, >=64=0.0%
     issued rwts: total=5722206,5725241,0,0 short=0,0,0,0 dropped=0,0,0,0
     latency   : target=0, window=0, percentile=100.00%, depth=16

Run status group 0 (all jobs):
   READ: bw=1490MiB/s (1562MB/s), 1490MiB/s-1490MiB/s (1562MB/s-1562MB/s), io=21.8GiB (23.4GB), run=15001-15001msec
  WRITE: bw=1491MiB/s (1563MB/s), 1491MiB/s-1491MiB/s (1563MB/s-1563MB/s), io=21.8GiB (23.5GB), run=15001-15001msec

Disk stats (read/write):
    md2: ios=5703194/5706408, merge=0/0, ticks=1673176/2041188, in_queue=3714364, util=99.35%, aggrios=2861103/5725392, aggrmerge=0/57, aggrticks=839400/1735822, aggrin_queue=2575223, aggrutil=98.81%
  nvme0n1: ios=2886914/5725392, merge=0/57, ticks=876065/1727762, in_queue=2603828, util=98.81%
  nvme1n1: ios=2835292/5725392, merge=0/57, ticks=802736/1743882, in_queue=2546618, util=98.81%