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 fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed. fio: pid=22710, got signal=6 Threads: 2 Threads: 2 Threads: 2: [Fm_] [50.0% done] [ 740/ 392 kb/s] [eta 00m:03s] Threads: 2: [Fm_] [66.7% done] [ 568/ 11216 kb/s] [eta 00m:02s] Threads: 2: [FF_] [100.0% done] [ 284/ 13528 kb/s] [eta 00m:00s] Threads: 2: [FF_] [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=22708, got signal=6 Threads: 1: [_F_] [100.0% done] [ 0/ 0 kb/s] [eta 00m:00s] Threads: 1: [_F_] [100.0% done] [ 0/ 0 kb/s] [eta 00m:00s] Threads: 1: [_F_] [100.0% done] [ 0/ 0 kb/s] [eta 00m:00s] Threads: 1: [_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: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed. fio: pid=22709, got signal=6 fio: (groupid=0): err= 0: pid=22708 cpu : usr=0.00%, sys=0.00%, ctx=0 IO depths : 1=17.0%, 2=77.3%, 4=3.8%, 8=2.0%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=94.8%, 4=1.1%, 10=1.3%, 20=0.0%, 50=0.2%, 100=0.4% lat (msec): 250=1.9%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0% fio: (groupid=0): err= 0: pid=22709 cpu : usr=0.00%, sys=0.00%, ctx=0 IO depths : 1=15.9%, 2=74.8%, 4=4.6%, 8=4.7%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=89.5%, 4=1.8%, 10=1.1%, 20=0.9%, 50=0.6%, 100=0.7% lat (msec): 250=2.4%, 500=1.6%, 750=0.9%, 1000=0.2%, >=2000=0.0% fio: (groupid=0): err= 0: pid=22710 cpu : usr=0.00%, sys=0.00%, ctx=0 IO depths : 1=0.2%, 2=98.1%, 4=1.7%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=99.5%, 4=0.3%, 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): Disk stats (read/write): sda: ios=160/2042, merge=90/72134, ticks=5888/1460380, in_queue=1474756, util=93.29% 2.84user 0.92system 0:12.45elapsed 30%CPU (0avgtext+0avgdata 0maxresident)k 0inputs+0outputs (0major+2494minor)pagefaults 0swaps