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-3.28 Starting 1 process mytest: (groupid=0, jobs=1): err= 0: pid=2394: Thu Sep 7 10:15:21 2023 read: IOPS=83.0k, BW=1296MiB/s (1359MB/s)(25.3GiB/20001msec) slat (nsec): min=1070, max=4733.1k, avg=11154.72, stdev=54830.59 clat (nsec): min=150, max=25600, avg=179.95, stdev=71.72 lat (nsec): min=1270, max=4735.8k, avg=11375.00, stdev=54867.61 clat percentiles (nsec): | 1.00th=[ 161], 5.00th=[ 161], 10.00th=[ 161], 20.00th=[ 161], | 30.00th=[ 171], 40.00th=[ 171], 50.00th=[ 171], 60.00th=[ 171], | 70.00th=[ 171], 80.00th=[ 181], 90.00th=[ 191], 95.00th=[ 282], | 99.00th=[ 322], 99.50th=[ 330], 99.90th=[ 362], 99.95th=[ 470], | 99.99th=[ 2672] bw ( MiB/s): min= 1249, max= 1336, per=100.00%, avg=1296.49, stdev=23.43, samples=39 iops : min=79936, max=85562, avg=82975.08, stdev=1499.46, samples=39 lat (nsec) : 250=93.63%, 500=6.32%, 750=0.01%, 1000=0.01% lat (usec) : 2=0.01%, 4=0.04%, 10=0.01%, 20=0.01%, 50=0.01% cpu : usr=2.92%, sys=29.42%, ctx=68585, 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=1659375,0,0,0 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=1296MiB/s (1359MB/s), 1296MiB/s-1296MiB/s (1359MB/s-1359MB/s), io=25.3GiB (27.2GB), run=20001-20001msec