root@lubancat:~# fio -filename=/dev/mmcblk0 -direct=1 -iodepth 1 -thread -rw=randrw -rwmixread=70 -ioengine=psync -bs=16k -size=200G -numjobs=30 -runtime=100 -group_reporting -name=mytest1mytest1: (g=0): rw=randrw, bs=(R) 16.0KiB-16.0KiB, (W) 16.0KiB-16.0KiB, (T) 16.0KiB-16.0KiB, ioengine=psync, iodepth=1 ... fio-3.16 Starting 30 threads Jobs: 30 (f=30): [m(30)][100.0%][r=28.5MiB/s,w=12.5MiB/s][r=1827,w=802 IOPS][eta 00m:00s] mytest1: (groupid=0, jobs=30): err= 0: pid=3744: Thu Nov 24 15:55:05 2022 read: IOPS=1859, BW=29.1MiB/s (30.5MB/s)(2906MiB/100010msec) clat (usec): min=546, max=190880, avg=9804.26, stdev=14121.87 lat (usec): min=547, max=190882, avg=9806.48, stdev=14121.91 clat percentiles (usec): | 1.00th=[ 988], 5.00th=[ 1450], 10.00th=[ 2008], 20.00th=[ 3195], | 30.00th=[ 4490], 40.00th=[ 5932], 50.00th=[ 7439], 60.00th=[ 8979], | 70.00th=[ 10683], 80.00th=[ 12649], 90.00th=[ 16188], 95.00th=[ 21627], | 99.00th=[ 71828], 99.50th=[141558], 99.90th=[156238], 99.95th=[162530], | 99.99th=[175113] bw ( KiB/s): min=13591, max=48972, per=100.00%, avg=29761.42, stdev=224.59, samples=5984 iops : min= 845, max= 3057, avg=1857.26, stdev=14.04, samples=5984 write: IOPS=798, BW=12.5MiB/s (13.1MB/s)(1248MiB/100010msec); 0 zone resets clat (usec): min=956, max=220526, avg=14596.17, stdev=19875.27 lat (usec): min=963, max=220535, avg=14604.90, stdev=19875.28 clat percentiles (usec): | 1.00th=[ 1450], 5.00th=[ 2114], 10.00th=[ 2933], 20.00th=[ 4424], | 30.00th=[ 5997], 40.00th=[ 7570], 50.00th=[ 9372], 60.00th=[ 11469], | 70.00th=[ 14353], 80.00th=[ 19530], 90.00th=[ 29230], 95.00th=[ 39060], | 99.00th=[141558], 99.50th=[154141], 99.90th=[179307], 99.95th=[187696], | 99.99th=[200279] bw ( KiB/s): min= 4890, max=23262, per=100.00%, avg=12780.92, stdev=114.99, samples=5984 iops : min= 300, max= 1453, avg=795.73, stdev= 7.20, samples=5984 lat (usec) : 750=0.05%, 1000=0.77% lat (msec) : 2=7.43%, 4=15.38%, 10=38.67%, 20=27.76%, 50=8.24% lat (msec) : 100=0.69%, 250=1.01% cpu : usr=0.48%, sys=1.04%, ctx=266381, majf=0, minf=0 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=186010,79890,0,0 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=29.1MiB/s (30.5MB/s), 29.1MiB/s-29.1MiB/s (30.5MB/s-30.5MB/s), io=2906MiB (3048MB), run=100010-100010msec WRITE: bw=12.5MiB/s (13.1MB/s), 12.5MiB/s-12.5MiB/s (13.1MB/s-13.1MB/s), io=1248MiB (1309MB), run=100010-100010msec
Disk stats (read/write): mmcblk0: ios=185758/79771, merge=4/2, ticks=1806578/1157425, in_queue=197940, util=99.15% root@lubancat:~#