fio: (g=0): rw=randrw, bs=4K-256K/4K-256K, ioengine=posixaio, iodepth=8 ... fio: (g=0): rw=randrw, bs=4K-256K/4K-256K, ioengine=posixaio, iodepth=8 Starting 3 threads Threads: 3 Threads: 3 Threads: 3: [mmm] [10.0% done] [ 11180/ 0 kb/s] [eta 00m:27s] Threads: 3: [Fmm] [12.1% done] [ 7971/ 45288 kb/s] [eta 00m:29s] Threads: 3: [Fmm] [41.7% done] [ 7474/ 56179 kb/s] [eta 00m:07s] Threads: 3: [Fmm] [46.2% done] [ 9700/ 0 kb/s] [eta 00m:07s] Threads: 3: [Fmm] [53.8% done] [ 9788/ 4624 kb/s] [eta 00m:06s] Threads: 3: [FFF] [100.0% done] [ 16/ 39795 kb/s] [eta 00m:00s] Threads: 3: [FFF] [100.0% done] [ 0/ 0 kb/s] [eta 00m:00s] Threads: 3: [FFF] [100.0% done] [ 0/ 0 kb/s] [eta 00m:00s] Threads: 3: [FFF] [100.0% done] [ 0/ 0 kb/s] [eta 00m:00s] Threads: 3: [FFF] [100.0% done] [ 0/ 0 kb/s] [eta 00m:00s] Threads: 3: [FFF] [100.0% done] [ 0/ 0 kb/s] [eta 00m:00s] Threads: 3: [FFF] [100.0% done] [ 0/ 0 kb/s] [eta 00m:00s] Threads: 3: [FFF] [100.0% done] [ 0/ 0 kb/s] [eta 00m:00s] Threads: 3: [FFF] [100.0% done] [ 0/ 0 kb/s] [eta 00m:00s] Threads: 3: [FFF] [100.0% done] [ 0/ 0 kb/s] [eta 00m:00s] fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed. fio: pid=914, got signal=6 Threads: 2: [V_V] [69.2% done] [ 10588/ 0 kb/s] [eta 00m:08s] Threads: 2: [V_V] [79.2% done] [ 25148/ 0 kb/s] [eta 00m:05s] Threads: 2: [V_V] [87.0% done] [ 27008/ 0 kb/s] [eta 00m:03s] Threads: 2: [V_V] [95.5% done] [ 35028/ 0 kb/s] [eta 00m:01s] Threads: 2: [V_V] [100.0% done] [ 32968/ 0 kb/s] [eta 00m:00s] Threads: 2: [V_V] [100.0% done] [ 24120/ 0 kb/s] [eta 00m:00s] fio: (groupid=0): err= 0: pid=913 read : io=100MiB, bw=4,377KiB/s, runt= 23954msec slat (msec): min= 0, max= 0, avg= 0.00, stdev= 0.00 clat (msec): min= 0, max= 550, avg=41.89, stdev=76.67 bw (KiB/s) : min= 6, max=22306, per=101.97%, avg=10282.06, stdev=8574.54 write: io=97,312KiB, bw=5,639KiB/s, runt= 17668msec slat (msec): min= 0, max= 0, avg= 0.00, stdev= 0.00 clat (msec): min= 0, max= 247, avg= 1.18, stdev=12.14 bw (KiB/s) : min= 0, max=53451, per=155.74%, avg=21473.33, stdev=28231.33 cpu : usr=3.41%, sys=1.89%, ctx=6482 IO depths : 1=2.4%, 2=55.2%, 4=30.2%, 8=12.2%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=48.0%, 4=0.7%, 10=17.5%, 20=16.8%, 50=7.0%, 100=1.8% lat (msec): 250=6.4%, 500=1.5%, 750=0.2%, 1000=0.0%, >=2000=0.0% fio: (groupid=0): err= 0: pid=914 cpu : usr=0.00%, sys=0.00%, ctx=0 IO depths : 1=0.4%, 2=73.8%, 4=6.0%, 8=19.9%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=73.6%, 4=1.4%, 10=0.7%, 20=0.1%, 50=1.4%, 100=7.5% lat (msec): 250=12.6%, 500=2.2%, 750=0.1%, 1000=0.0%, >=2000=0.0% fio: (groupid=0): err= 0: pid=915 read : io=100MiB, bw=4,343KiB/s, runt= 24122msec slat (msec): min= 0, max= 0, avg= 0.00, stdev= 0.00 clat (msec): min= 0, max= 462, avg=64.04, stdev=81.85 bw (KiB/s) : min= 0, max=17055, per=70.67%, avg=7125.56, stdev=4846.66 write: io=71,100KiB, bw=4,118KiB/s, runt= 17676msec slat (msec): min= 0, max= 0, avg= 0.00, stdev= 0.00 clat (msec): min= 0, max= 83, avg= 0.58, stdev= 4.71 bw (KiB/s) : min= 0, max=23169, per=84.02%, avg=11584.50, stdev=16382.96 cpu : usr=2.42%, sys=1.34%, ctx=5119 IO depths : 1=1.5%, 2=47.3%, 4=29.9%, 8=21.4%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=43.1%, 4=0.3%, 10=10.9%, 20=15.6%, 50=10.1%, 100=4.7% lat (msec): 250=12.1%, 500=2.7%, 750=0.0%, 1000=0.0%, >=2000=0.0% Run status group 0 (all jobs): READ: io=232MiB, aggrb=10,083KiB/s, minb=0KiB/s, maxb=4,377KiB/s, mint=24122msec, maxt=24122msec WRITE: io=232MiB, aggrb=13,788KiB/s, minb=0KiB/s, maxb=5,639KiB/s, mint=24122msec, maxt=24122msec Disk stats (read/write): sda: ios=3159/2306, merge=1138/57146, ticks=61804/1947732, in_queue=2009536, util=98.98% 2.00user 1.12system 0:24.47elapsed 12%CPU (0avgtext+0avgdata 0maxresident)k 0inputs+0outputs (0major+2491minor)pagefaults 0swaps