fio-3.28 Read Test Results: 498MiB/s Bandwidth with psync IO Engine

fio-3.28\nStarting 30 threads\n\nfio: terminating on signal 2\n\nread-psync: (groupid=0, jobs=30): err= 0: pid=12390: Wed Oct 11 16:49:25 2023\n read: IOPS=31.8k, BW=498MiB/s (522MB/s)(83.4GiB/171675msec)\n clat (usec): min=172, max=3179, avg=941.85, stdev=64.15\n lat (usec): min=173, max=3179, avg=941.88, stdev=64.15\n clat percentiles (usec):\n | 1.00th=[ 906], 5.00th=[ 930], 10.00th=[ 938], 20.00th=[ 938],\n | 30.00th=[ 938], 40.00th=[ 938], 50.00th=[ 938], 60.00th=[ 938],\n | 70.00th=[ 938], 80.00th=[ 938], 90.00th=[ 938], 95.00th=[ 947],\n | 99.00th=[ 1045], 99.50th=[ 1074], 99.90th=[ 2212], 99.95th=[ 2245],\n | 99.99th=[ 2442]\n bw ( KiB/s): min=478112, max=513536, per=100.00%, avg=509560.26, stdev=131.36, samples=10290\n iops : min=29882, max=32096, avg=31847.52, stdev= 8.21, samples=10290\n lat (usec) : 250=0.01%, 500=0.01%, 750=0.01%, 1000=97.88% \n lat (msec) : 2=1.92%, 4=0.19% \n cpu : usr=0.08%, sys=0.51%, ctx=10903546, majf=0, minf=368\n IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% \n submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% \n complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% \n issued rwts: total=5466567,0,0,0 short=0,0,0,0 dropped=0,0,0,0\n latency : target=0, window=0, percentile=100.00%, depth=1\n\nRun status group 0 (all jobs):\n READ: bw=498MiB/s (522MB/s), 498MiB/s-498MiB/s (522MB/s-522MB/s), io=83.4GiB (89.6GB), run=171675-171675msec\n\nDisk stats (read/write):\n sdb: ios=5459623/0, merge=5868/0, ticks=5110339/0, in_queue=5110338, util=99.96%