fio: (g=0): rw=randrw, bs=4K-256K/4K-256K, ioengine=mmap, iodepth=1 ... fio: (g=0): rw=randrw, bs=4K-256K/4K-256K, ioengine=mmap, iodepth=1 Starting 3 threads Threads: 2 Threads: 2 Threads: 2: [F_F] [100.0% done] [ 0/ 0 kb/s] [eta 00m:00s] Threads: 1: [F__] [100.0% done] [ 0/ 0 kb/s] [eta 00m:00s] fio: (groupid=0): err= 0: pid=5584 read : io=100MiB, bw=23,918KiB/s, runt= 4384msec clat (msec): min= 0, max= 0, avg= 0.00, stdev= 0.00 bw (KiB/s) : min= 29, max= 57, per=0.06%, avg=43.00, stdev=19.80 write: io=67,372KiB, bw=17,212KiB/s, runt= 4008msec clat (msec): min= 0, max= 0, avg= 0.00, stdev= 0.00 bw (KiB/s) : min= 0, max=72916, per=266.48%, avg=45866.67, stdev=39934.38 cpu : usr=35.31%, sys=4.20%, ctx=18 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=99.9%, 4=0.0%, 10=0.0%, 20=0.0%, 50=0.0%, 100=0.0% lat (msec): 250=0.0%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0% fio: (groupid=0): err= 0: pid=5585 read : io=100MiB, bw=120MiB/s, runt= 855msec clat (msec): min= 0, max= 0, avg= 0.00, stdev= 0.00 bw (KiB/s) : min=124997, max=124997, per=174.20%, avg=124997.00, stdev=-1.00 cpu : usr=88.89%, sys=9.82%, ctx=3 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=99.8%, 4=0.0%, 10=0.0%, 20=0.0%, 50=0.0%, 100=0.0% lat (msec): 250=0.0%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0% fio: (groupid=0): err= 0: pid=5586 read : io=100MiB, bw=28,846KiB/s, runt= 3635msec clat (msec): min= 0, max= 0, avg= 0.00, stdev= 0.00 bw (KiB/s) : min=64118, max=74145, per=96.35%, avg=69131.50, stdev=7090.16 cpu : usr=33.89%, sys=1.76%, ctx=65 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=99.8%, 4=0.0%, 10=0.0%, 20=0.0%, 50=0.0%, 100=0.0% lat (msec): 250=0.0%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0% Run status group 0 (all jobs): READ: io=300MiB, aggrb=71,754KiB/s, minb=23,918KiB/s, maxb=120MiB/s, mint=855msec, maxt=4384msec WRITE: io=67,372KiB, aggrb=17,212KiB/s, minb=0KiB/s, maxb=17,212KiB/s, mint=855msec, maxt=4384msec Disk stats (read/write): sda: ios=0/504, merge=0/16365, ticks=0/326976, in_queue=326976, util=59.47% 3.54user 0.34system 0:04.71elapsed 82%CPU (0avgtext+0avgdata 0maxresident)k 0inputs+0outputs (0major+94575minor)pagefaults 0swaps