mytest: (g=0): rw=read, bs=(R) 16.0KiB-16.0KiB, (W) 16.0KiB-16.0KiB, (T) 16.0KiB-16.0KiB, ioengine=libaio, iodepth=1 fio-3.35 Starting 1 process mytest: (groupid=0, jobs=1): err= 0: pid=3871: Wed Sep 6 20:18:33 2023 read: IOPS=232k, BW=3618MiB/s (3794MB/s)(70.7GiB/20001msec) slat (nsec): min=1100, max=1799.3k, avg=3323.56, stdev=11568.72 clat (nsec): min=200, max=350120, avg=269.53, stdev=446.39 lat (nsec): min=1330, max=1799.9k, avg=3593.09, stdev=11603.38 clat percentiles (nsec): | 1.00th=[ 221], 5.00th=[ 221], 10.00th=[ 221], 20.00th=[ 231], | 30.00th=[ 231], 40.00th=[ 231], 50.00th=[ 231], 60.00th=[ 241], | 70.00th=[ 241], 80.00th=[ 251], 90.00th=[ 370], 95.00th=[ 390], | 99.00th=[ 502], 99.50th=[ 628], 99.90th=[ 3056], 99.95th=[ 4256], | 99.99th=[ 5920] bw ( MiB/s): min= 2864, max= 3960, per=99.92%, avg=3614.98, stdev=277.49, samples=39 iops : min=183344, max=253440, avg=231358.77, stdev=17759.57, samples=39 lat (nsec) : 250=79.49%, 500=19.43%, 750=0.65%, 1000=0.01% lat (usec) : 2=0.01%, 4=0.35%, 10=0.06%, 20=0.01%, 50=0.01% lat (usec) : 100=0.01%, 250=0.01%, 500=0.01% cpu : usr=8.47%, sys=85.72%, ctx=5294, majf=0, minf=14 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=4631209,0,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=1 Run status group 0 (all jobs): READ: bw=3618MiB/s (3794MB/s), 3618MiB/s-3618MiB/s (3794MB/s-3794MB/s), io=70.7GiB (75.9GB), run=20001-20001msec