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] [9.4% done] [ 9388/ 0 kb/s] [eta 00m:29s] Threads: 3: [mmm] [11.4% done] [ 8832/ 0 kb/s] [eta 00m:31s] Threads: 3: [mmm] [13.2% done] [ 9144/ 0 kb/s] [eta 00m:33s] Threads: 3: [mFF] [15.4% done] [ 7763/ 22986 kb/s] [eta 00m:33s] Threads: 3: [mFF] [16.7% done] [ 2096/ 0 kb/s] [eta 00m:35s] Threads: 3: [mFF] [18.2% done] [ 2236/ 0 kb/s] [eta 00m:36s] Threads: 3: [mFF] [60.0% done] [ 1244/ 60152 kb/s] [eta 00m:06s] Threads: 3: [FFF] [100.0% done] [ 364/ 13084 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=15993, got signal=6 Threads: 2: [V_V] [69.2% done] [ 2564/ 0 kb/s] [eta 00m:08s] Threads: 2: [V_V] [73.1% done] [ 20188/ 0 kb/s] [eta 00m:07s] Threads: 2: [V_V] [83.3% done] [ 27992/ 0 kb/s] [eta 00m:04s] Threads: 2: [V_V] [95.5% done] [ 29648/ 0 kb/s] [eta 00m:01s] Threads: 2: [V_V] [100.0% done] [ 30432/ 0 kb/s] [eta 00m:00s] Threads: 2: [V_V] [100.0% done] [ 26768/ 0 kb/s] [eta 00m:00s] fio: (groupid=0): err= 0: pid=15992 read : io=100MiB, bw=4,329KiB/s, runt= 24217msec slat (msec): min= 0, max= 0, avg= 0.00, stdev= 0.00 clat (msec): min= 0, max= 680, avg=71.51, stdev=116.38 bw (KiB/s) : min= 10, max=16213, per=68.87%, avg=6362.57, stdev=5053.98 write: io=73,224KiB, bw=4,155KiB/s, runt= 18044msec slat (msec): min= 0, max= 0, avg= 0.00, stdev= 0.00 clat (msec): min= 0, max= 463, avg= 1.97, stdev=23.01 bw (KiB/s) : min= 0, max=139190, per=351.04%, avg=48335.33, stdev=78736.17 cpu : usr=2.21%, sys=1.30%, ctx=5508 IO depths : 1=1.2%, 2=50.1%, 4=30.4%, 8=18.2%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=45.8%, 4=0.0%, 10=16.7%, 20=14.1%, 50=7.2%, 100=2.1% lat (msec): 250=9.0%, 500=4.1%, 750=0.9%, 1000=0.0%, >=2000=0.0% fio: (groupid=0): err= 0: pid=15993 cpu : usr=0.00%, sys=0.00%, ctx=0 IO depths : 1=0.4%, 2=72.2%, 4=8.3%, 8=19.1%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=72.3%, 4=0.7%, 10=0.6%, 20=0.9%, 50=5.2%, 100=6.2% lat (msec): 250=13.6%, 500=0.1%, 750=0.0%, 1000=0.0%, >=2000=0.0% fio: (groupid=0): err= 0: pid=15994 read : io=100MiB, bw=4,266KiB/s, runt= 24575msec slat (msec): min= 0, max= 0, avg= 0.00, stdev= 0.00 clat (msec): min= 0, max= 351, avg=53.82, stdev=67.67 bw (KiB/s) : min= 9, max=20472, per=86.21%, avg=7964.62, stdev=6506.00 write: io=84,768KiB, bw=4,794KiB/s, runt= 18104msec slat (msec): min= 0, max= 0, avg= 0.00, stdev= 0.00 clat (msec): min= 0, max= 127, avg= 0.62, stdev= 6.94 bw (KiB/s) : min= 0, max=10882, per=39.52%, avg=5441.00, stdev=7694.74 cpu : usr=2.69%, sys=1.55%, ctx=5567 IO depths : 1=0.8%, 2=49.4%, 4=29.6%, 8=20.1%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=45.3%, 4=0.2%, 10=13.9%, 20=14.6%, 50=7.9%, 100=4.1% lat (msec): 250=12.7%, 500=1.1%, 750=0.0%, 1000=0.0%, >=2000=0.0% Run status group 0 (all jobs): READ: io=217MiB, aggrb=9,239KiB/s, minb=0KiB/s, maxb=4,329KiB/s, mint=24575msec, maxt=24575msec WRITE: io=238MiB, aggrb=13,769KiB/s, minb=0KiB/s, maxb=4,794KiB/s, mint=24575msec, maxt=24575msec Disk stats (read/write): sda: ios=3460/2058, merge=989/58756, ticks=54464/2558132, in_queue=2613024, util=99.31% 1.92user 1.02system 0:24.93elapsed 11%CPU (0avgtext+0avgdata 0maxresident)k 0inputs+0outputs (0major+2472minor)pagefaults 0swaps