read: (g=0): rw=read, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=1 randread: (g=1): rw=randread, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=1 fio-3.39 Starting 2 processes read: (groupid=0, jobs=1): err= 0: pid=23955: Sat Apr 12 19:36:41 2025 read: IOPS=62.1k, BW=242MiB/s (254MB/s)(64.0MiB/264msec) clat (usec): min=10, max=913, avg=15.86, stdev=11.07 lat (usec): min=10, max=913, avg=15.89, stdev=11.07 clat percentiles (nsec): | 1.00th=[10176], 5.00th=[11840], 10.00th=[12096], 20.00th=[12224], | 30.00th=[12224], 40.00th=[12224], 50.00th=[12352], 60.00th=[12480], | 70.00th=[12992], 80.00th=[14016], 90.00th=[25472], 95.00th=[37632], | 99.00th=[48896], 99.50th=[51456], 99.90th=[65280], 99.95th=[69120], | 99.99th=[93696] lat (usec) : 20=83.84%, 50=15.50%, 100=0.66%, 1000=0.01% cpu : usr=3.42%, sys=6.84%, ctx=16384, majf=0, minf=9 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=16384,0,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=1 randread: (groupid=1, jobs=1): err= 0: pid=23956: Sat Apr 12 19:36:41 2025 read: IOPS=15.4k, BW=60.0MiB/s (62.9MB/s)(64.0MiB/1067msec) clat (usec): min=10, max=2157, avg=64.80, stdev=22.68 lat (usec): min=10, max=2157, avg=64.83, stdev=22.68 clat percentiles (usec): | 1.00th=[ 11], 5.00th=[ 63], 10.00th=[ 65], 20.00th=[ 65], | 30.00th=[ 65], 40.00th=[ 65], 50.00th=[ 65], 60.00th=[ 65], | 70.00th=[ 70], 80.00th=[ 71], 90.00th=[ 72], 95.00th=[ 72], | 99.00th=[ 73], 99.50th=[ 75], 99.90th=[ 113], 99.95th=[ 165], | 99.99th=[ 914] bw ( KiB/s): min=61312, max=61784, per=100.00%, avg=61548.00, stdev=333.75, samples=2 iops : min=15328, max=15446, avg=15387.00, stdev=83.44, samples=2 lat (usec) : 20=4.03%, 100=95.65%, 250=0.27%, 500=0.02%, 1000=0.01% lat (msec) : 4=0.01% cpu : usr=0.66%, sys=2.06%, ctx=16390, majf=0, minf=8 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=16384,0,0,0 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=242MiB/s (254MB/s), 242MiB/s-242MiB/s (254MB/s-254MB/s), io=64.0MiB (67.1MB), run=264-264msec Run status group 1 (all jobs): READ: bw=60.0MiB/s (62.9MB/s), 60.0MiB/s-60.0MiB/s (62.9MB/s-62.9MB/s), io=64.0MiB (67.1MB), run=1067-1067msec Disk stats (read/write): nvme1n1: ios=30190/5, sectors=241528/376, merge=0/0, ticks=1083/69, in_queue=1153, util=72.01%