stresser: (g=0): rw=write, bs=16K-64K/16K-64K, ioengine=mmap, iodepth=1 stresser: (g=1): rw=randrw, bs=16K-64K/16K-64K, ioengine=mmap, iodepth=4 ... stresser: (g=1): rw=randrw, bs=16K-64K/16K-64K, ioengine=mmap, iodepth=4 Starting 5 processes stresser: Laying out IO file(s) (1 file(s) / 4096MiB) stresser: (groupid=0, jobs=1): err= 0: pid=6359 read : io=4,096MiB, bw=237MiB/s, iops=6,086, runt= 17255msec clat (usec): min=11, max=1,143, avg=35.38, stdev=16.58 bw (KiB/s) : min= 0, max=251936, per=97.19%, avg=236258.74, stdev=41412.67 write: io=4,096MiB, bw=23,061KiB/s, iops=577, runt=181875msec clat (usec): min=16, max=1,079K, avg=1480.05, stdev=17863.32 bw (KiB/s) : min= 0, max=65056, per=104.49%, avg=24096.08, stdev=18764.22 cpu : usr=21.29%, sys=3.21%, ctx=29466, majf=0, minf=2099668 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 r/w: total=105018/105018, short=0/0 lat (usec): 20=15.90%, 50=46.77%, 100=28.98%, 250=0.28%, 500=0.09% lat (usec): 750=0.05%, 1000=0.04% lat (msec): 2=2.33%, 4=4.22%, 10=0.96%, 20=0.07%, 50=0.08% lat (msec): 100=0.07%, 250=0.06%, 500=0.09%, 750=0.01%, 1000=0.01% lat (msec): 2000=0.01% stresser: (groupid=1, jobs=1): err= 0: pid=6663 read : io=3,072MiB, bw=15,315KiB/s, iops=383, runt=205392msec clat (usec): min=4, max=76,086, avg=65.01, stdev=858.14 bw (KiB/s) : min= 8, max=517120, per=57.08%, avg=34968.63, stdev=85808.71 write: io=1,024MiB, bw=5,104KiB/s, iops=127, runt=205410msec clat (usec): min=6, max=8,362K, avg=7610.31, stdev=145802.09 bw (KiB/s) : min= 0, max=170304, per=52.47%, avg=10713.31, stdev=27069.84 cpu : usr=1.37%, sys=1.43%, ctx=1817, majf=0, minf=843002 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 r/w: total=78791/26265, short=0/0 lat (usec): 10=3.09%, 20=8.59%, 50=43.92%, 100=40.22%, 250=3.94% lat (usec): 500=0.05%, 1000=0.01% lat (msec): 2=0.01%, 4=0.01%, 10=0.01%, 20=0.01%, 50=0.04% lat (msec): 100=0.01%, 250=0.01%, 500=0.01%, 750=0.02%, 1000=0.02% lat (msec): 2000=0.04%, >=2000=0.03% stresser: (groupid=1, jobs=1): err= 0: pid=6664 read : io=3,072MiB, bw=15,941KiB/s, iops=400, runt=197329msec clat (usec): min=4, max=936K, avg=68.61, stdev=3412.09 bw (KiB/s) : min= 27, max=568448, per=50.44%, avg=30898.07, stdev=83063.72 write: io=1,024MiB, bw=5,314KiB/s, iops=132, runt=197301msec clat (usec): min=6, max=5,890K, avg=7311.39, stdev=124949.86 bw (KiB/s) : min= 0, max=189344, per=49.41%, avg=10089.21, stdev=27590.73 cpu : usr=1.37%, sys=1.43%, ctx=2046, majf=0, minf=839945 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 r/w: total=78953/26199, short=0/0 lat (usec): 10=3.42%, 20=11.46%, 50=42.97%, 100=39.61%, 250=2.30% lat (usec): 500=0.04%, 750=0.01% lat (msec): 2=0.01%, 4=0.01%, 10=0.01%, 20=0.01%, 50=0.04% lat (msec): 100=0.01%, 250=0.01%, 500=0.01%, 750=0.04%, 1000=0.03% lat (msec): 2000=0.04%, >=2000=0.02% stresser: (groupid=1, jobs=1): err= 0: pid=6665 read : io=3,072MiB, bw=15,314KiB/s, iops=383, runt=205409msec clat (usec): min=5, max=914K, avg=70.16, stdev=3348.32 bw (KiB/s) : min= 14, max=580288, per=43.73%, avg=26789.97, stdev=70819.95 write: io=1,024MiB, bw=5,104KiB/s, iops=127, runt=205409msec clat (usec): min=4, max=7,092K, avg=7590.29, stdev=124152.65 bw (KiB/s) : min= 0, max=196960, per=42.29%, avg=8635.41, stdev=23476.82 cpu : usr=1.32%, sys=1.46%, ctx=1798, majf=0, minf=841586 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 r/w: total=78688/26272, short=0/0 lat (usec): 10=3.02%, 20=11.31%, 50=42.88%, 100=39.85%, 250=2.69% lat (usec): 500=0.03%, 750=0.01% lat (msec): 2=0.01%, 4=0.01%, 10=0.01%, 20=0.01%, 50=0.03% lat (msec): 100=0.01%, 250=0.01%, 500=0.02%, 750=0.04%, 1000=0.03% lat (msec): 2000=0.05%, >=2000=0.02% stresser: (groupid=1, jobs=1): err= 0: pid=6666 read : io=3,072MiB, bw=16,633KiB/s, iops=416, runt=189120msec clat (usec): min=5, max=915K, avg=77.36, stdev=3376.28 bw (KiB/s) : min= 25, max=265824, per=42.83%, avg=26235.54, stdev=50854.05 write: io=1,024MiB, bw=5,543KiB/s, iops=139, runt=189165msec clat (usec): min=6, max=4,245K, avg=6936.02, stdev=101945.27 bw (KiB/s) : min= 0, max=89152, per=41.23%, avg=8419.56, stdev=16536.11 cpu : usr=1.51%, sys=1.64%, ctx=1633, majf=0, minf=843389 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 r/w: total=78691/26337, short=0/0 lat (usec): 10=2.98%, 20=8.49%, 50=44.12%, 100=39.98%, 250=4.14% lat (usec): 500=0.04%, 750=0.01%, 1000=0.01% lat (msec): 2=0.01%, 4=0.01%, 10=0.01%, 20=0.01%, 50=0.04% lat (msec): 100=0.01%, 250=0.01%, 500=0.04%, 750=0.04%, 1000=0.02% lat (msec): 2000=0.05%, >=2000=0.02% Run status group 0 (all jobs): READ: io=4,096MiB, aggrb=237MiB/s, minb=237MiB/s, maxb=237MiB/s, mint=17255msec, maxt=17255msec WRITE: io=4,096MiB, aggrb=23,061KiB/s, minb=23,061KiB/s, maxb=23,061KiB/s, mint=181875msec, maxt=181875msec Run status group 1 (all jobs): READ: io=12,288MiB, aggrb=61,258KiB/s, minb=15,314KiB/s, maxb=16,633KiB/s, mint=189120msec, maxt=205409msec WRITE: io=4,096MiB, aggrb=20,419KiB/s, minb=5,104KiB/s, maxb=5,543KiB/s, mint=189165msec, maxt=205410msec Disk stats (read/write): sda: ios=17443/62611, merge=0/1788867, ticks=182343/90303945, in_queue=90486331, util=95.99% 56.40user 41.64system 11:26.30elapsed 14%CPU (0avgtext+0avgdata 0maxresident)k 8388912inputs+23260456outputs (27major+5472129minor)pagefaults 0swaps