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=4878: Wed Sep 6 20:15:47 2023 read: IOPS=115k, BW=1798MiB/s (1886MB/s)(35.1GiB/20001msec) slat (nsec): min=1669, max=388553, avg=6133.48, stdev=22516.06 clat (nsec): min=499, max=56103, avg=651.22, stdev=567.31 lat (usec): min=2, max=389, avg= 6.78, stdev=22.56 clat percentiles (nsec): | 1.00th=[ 510], 5.00th=[ 516], 10.00th=[ 524], 20.00th=[ 524], | 30.00th=[ 532], 40.00th=[ 532], 50.00th=[ 532], 60.00th=[ 540], | 70.00th=[ 540], 80.00th=[ 556], 90.00th=[ 884], 95.00th=[ 908], | 99.00th=[ 3760], 99.50th=[ 5408], 99.90th=[ 6944], 99.95th=[ 8256], | 99.99th=[11072] bw ( MiB/s): min= 1283, max= 2000, per=99.80%, avg=1794.87, stdev=245.35, samples=39 iops : min=82112, max=128000, avg=114871.79, stdev=15702.80, samples=39 lat (nsec) : 500=0.01%, 750=84.44%, 1000=12.06% lat (usec) : 2=2.06%, 4=0.50%, 10=0.94%, 20=0.02%, 50=0.01% lat (usec) : 100=0.01% cpu : usr=8.13%, sys=88.54%, ctx=1495, majf=0, minf=15 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=2302186,0,0,0 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=1798MiB/s (1886MB/s), 1798MiB/s-1798MiB/s (1886MB/s-1886MB/s), io=35.1GiB (37.7GB), run=20001-20001msec