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=8155: Thu Sep 7 10:29:21 2023 read: IOPS=75.1k, BW=1173MiB/s (1230MB/s)(22.9GiB/20001msec) slat (nsec): min=1140, max=4819.0k, avg=11611.60, stdev=51873.57 clat (nsec): min=260, max=73364, avg=525.02, stdev=269.56 lat (nsec): min=1450, max=4822.3k, avg=12136.62, stdev=51936.87 clat percentiles (nsec): | 1.00th=[ 282], 5.00th=[ 282], 10.00th=[ 290], 20.00th=[ 450], | 30.00th=[ 462], 40.00th=[ 470], 50.00th=[ 482], 60.00th=[ 580], | 70.00th=[ 588], 80.00th=[ 604], 90.00th=[ 620], 95.00th=[ 700], | 99.00th=[ 1032], 99.50th=[ 1080], 99.90th=[ 5280], 99.95th=[ 5920], | 99.99th=[ 6368] bw ( MiB/s): min= 1098, max= 1283, per=100.00%, avg=1173.95, stdev=49.51, samples=39 iops : min=70308, max=82144, avg=75132.62, stdev=3168.60, samples=39 lat (nsec) : 500=53.16%, 750=42.30%, 1000=3.17% lat (usec) : 2=1.17%, 4=0.04%, 10=0.16%, 20=0.01%, 50=0.01% lat (usec) : 100=0.01% cpu : usr=6.08%, sys=41.59%, ctx=53595, majf=0, minf=13 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=1501311,0,0,0 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=1173MiB/s (1230MB/s), 1173MiB/s-1173MiB/s (1230MB/s-1230MB/s), io=22.9GiB (24.6GB), run=20001-20001msec