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=6310 read : io=4,096MiB, bw=244MiB/s, iops=6,227, runt= 16812msec clat (usec): min=11, max=184, avg=31.23, stdev=14.16 bw (KiB/s) : min= 0, max=252480, per=97.13%, avg=242334.12, stdev=43015.60 write: io=4,096MiB, bw=21,423KiB/s, iops=534, runt=195777msec clat (usec): min=15, max=5,224K, avg=1629.55, stdev=23861.83 bw (KiB/s) : min= 0, max=46916, per=115.08%, avg=24654.38, stdev=19370.55 cpu : usr=19.66%, sys=2.69%, ctx=18279, majf=0, minf=2099251 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=104705/104705, short=0/0 lat (usec): 20=21.09%, 50=48.21%, 100=22.31%, 250=0.07%, 500=0.04% lat (usec): 750=0.04%, 1000=0.02% lat (msec): 2=0.63%, 4=4.24%, 10=2.90%, 20=0.11%, 50=0.11% lat (msec): 100=0.10%, 250=0.04%, 500=0.07%, 750=0.01%, 2000=0.01% lat (msec): >=2000=0.01% stresser: (groupid=1, jobs=1): err= 0: pid=6616 read : io=3,072MiB, bw=16,975KiB/s, iops=424, runt=185315msec clat (usec): min=3, max=93,515, avg=51.47, stdev=369.32 bw (KiB/s) : min= 12, max=468384, per=51.69%, avg=33439.74, stdev=87171.56 write: io=1,024MiB, bw=5,658KiB/s, iops=141, runt=185302msec clat (usec): min=6, max=6,188K, avg=6883.80, stdev=131458.58 bw (KiB/s) : min= 0, max=155616, per=50.87%, avg=10969.43, stdev=28739.86 cpu : usr=1.69%, sys=1.62%, ctx=1211, majf=0, minf=844390 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=78632/26292, short=0/0 lat (usec): 4=0.01%, 10=2.75%, 20=6.70%, 50=42.05%, 100=40.73% lat (usec): 250=7.60%, 500=0.02% lat (msec): 2=0.01%, 4=0.01%, 10=0.01%, 20=0.01%, 50=0.01% lat (msec): 100=0.01%, 250=0.01%, 500=0.02%, 750=0.03%, 1000=0.03% lat (msec): 2000=0.04%, >=2000=0.02% stresser: (groupid=1, jobs=1): err= 0: pid=6617 read : io=3,072MiB, bw=17,097KiB/s, iops=426, runt=183987msec clat (usec): min=4, max=3,040, avg=46.89, stdev=31.45 bw (KiB/s) : min= 6, max=549248, per=54.80%, avg=35447.39, stdev=100778.10 write: io=1,024MiB, bw=5,392KiB/s, iops=134, runt=194448msec clat (usec): min=6, max=10,450K, avg=7296.94, stdev=144339.45 bw (KiB/s) : min= 0, max=176960, per=52.34%, avg=11286.31, stdev=32665.53 cpu : usr=1.52%, sys=1.55%, ctx=1214, majf=0, minf=840157 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=78434/26101, short=0/0 lat (usec): 10=2.70%, 20=7.05%, 50=44.93%, 100=40.44%, 250=4.68% lat (usec): 500=0.06%, 750=0.01% lat (msec): 2=0.01%, 4=0.01%, 10=0.01%, 100=0.01%, 250=0.01% lat (msec): 500=0.01%, 750=0.02%, 1000=0.04%, 2000=0.03%, >=2000=0.02% stresser: (groupid=1, jobs=1): err= 0: pid=6618 read : io=3,072MiB, bw=16,172KiB/s, iops=403, runt=194518msec clat (usec): min=3, max=20,257, avg=47.70, stdev=78.00 bw (KiB/s) : min= 3, max=506304, per=55.37%, avg=35820.29, stdev=97136.41 write: io=1,024MiB, bw=5,390KiB/s, iops=134, runt=194509msec clat (usec): min=6, max=9,975K, avg=7263.11, stdev=145173.62 bw (KiB/s) : min= 0, max=164576, per=53.41%, avg=11516.47, stdev=31768.44 cpu : usr=1.61%, sys=1.49%, ctx=1205, majf=0, minf=842448 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=78488/26227, short=0/0 lat (usec): 4=0.01%, 10=2.63%, 20=7.91%, 50=43.14%, 100=40.79% lat (usec): 250=5.38%, 500=0.02%, 750=0.01% lat (msec): 2=0.01%, 4=0.01%, 50=0.01%, 100=0.01%, 250=0.01% lat (msec): 500=0.02%, 750=0.02%, 1000=0.02%, 2000=0.04%, >=2000=0.02% stresser: (groupid=1, jobs=1): err= 0: pid=6619 read : io=3,072MiB, bw=17,473KiB/s, iops=437, runt=180030msec clat (usec): min=5, max=12,141, avg=47.10, stdev=99.33 bw (KiB/s) : min= 6, max=546016, per=61.32%, avg=39663.99, stdev=106639.27 write: io=1,024MiB, bw=5,766KiB/s, iops=143, runt=181834msec clat (usec): min=6, max=7,536K, avg=6826.37, stdev=138651.03 bw (KiB/s) : min= 0, max=178368, per=59.53%, avg=12836.78, stdev=34845.37 cpu : usr=1.59%, sys=1.57%, ctx=1620, majf=0, minf=841072 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=78733/26052, short=0/0 lat (usec): 10=2.79%, 20=7.24%, 50=45.03%, 100=40.54%, 250=4.24% lat (usec): 500=0.03%, 750=0.01% lat (msec): 2=0.01%, 4=0.01%, 10=0.01%, 20=0.01%, 100=0.01% lat (msec): 250=0.01%, 500=0.02%, 750=0.01%, 1000=0.03%, 2000=0.03% lat (msec): >=2000=0.02% Run status group 0 (all jobs): READ: io=4,096MiB, aggrb=244MiB/s, minb=244MiB/s, maxb=244MiB/s, mint=16812msec, maxt=16812msec WRITE: io=4,096MiB, aggrb=21,423KiB/s, minb=21,423KiB/s, maxb=21,423KiB/s, mint=195777msec, maxt=195777msec Run status group 1 (all jobs): READ: io=12,288MiB, aggrb=64,688KiB/s, minb=16,172KiB/s, maxb=17,473KiB/s, mint=180030msec, maxt=194518msec WRITE: io=4,096MiB, aggrb=21,563KiB/s, minb=5,390KiB/s, maxb=5,766KiB/s, mint=181834msec, maxt=194509msec Disk stats (read/write): sda: ios=17444/64407, merge=0/1786126, ticks=203427/71961999, in_queue=72165409, util=96.04% 55.67user 39.26system 11:04.20elapsed 14%CPU (0avgtext+0avgdata 0maxresident)k 8388920inputs+23238832outputs (27major+5471743minor)pagefaults 0swaps