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] [11.1% done] [ 10976/ 320 kb/s] [eta 00m:24s] Threads: 3: [mmm] [36.4% done] [ 10184/ 82688 kb/s] [eta 00m:07s] Threads: 3: [mmm] [35.7% done] [ 6414/ 2298 kb/s] [eta 00m:09s] Threads: 3: [mmm] [37.5% done] [ 4260/ 0 kb/s] [eta 00m:10s] fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed. fio: pid=32684, got signal=6 Threads: 2: [_mm] [43.8% done] [ 2728/ 31248 kb/s] [eta 00m:09s] Threads: 2: [_Fm] [44.4% done] [ 1448/ 38580 kb/s] [eta 00m:10s] Threads: 2: [_Fm] [45.0% done] [ 1104/ 0 kb/s] [eta 00m:11s] Threads: 2: [_FF] [100.0% done] [ 560/ 32796 kb/s] [eta 00m:00s] Threads: 2: [_FF] [100.0% done] [ 0/ 0 kb/s] [eta 00m:00s] Threads: 2: [_FF] [100.0% done] [ 0/ 0 kb/s] [eta 00m:00s] Threads: 2: [_FF] [100.0% done] [ 0/ 0 kb/s] [eta 00m:00s] Threads: 2: [_FF] [100.0% done] [ 0/ 0 kb/s] [eta 00m:00s] Threads: 2: [_FF] [100.0% done] [ 0/ 0 kb/s] [eta 00m:00s] Threads: 2: [_FF] [100.0% done] [ 0/ 0 kb/s] [eta 00m:00s] Threads: 2: [_FF] [100.0% done] [ 0/ 0 kb/s] [eta 00m:00s] Threads: 2: [_FF] [100.0% done] [ 0/ 0 kb/s] [eta 00m:00s] Threads: 2: [_FF] [100.0% done] [ 0/ 0 kb/s] [eta 00m:00s] Threads: 2: [_FF] [100.0% done] [ 0/ 0 kb/s] [eta 00m:00s] Threads: 2: [_FF] [100.0% done] [ 0/ 0 kb/s] [eta 00m:00s] Threads: 2: [_VV] [68.8% done] [ 8176/ 0 kb/s] [eta 00m:10s] Threads: 2: [_VV] [74.2% done] [ 26625/ 0 kb/s] [eta 00m:08s] Threads: 2: [_VV] [85.7% done] [ 23632/ 0 kb/s] [eta 00m:04s] Threads: 2: [_VV] [92.6% done] [ 28096/ 0 kb/s] [eta 00m:02s] Threads: 2: [_VV] [100.0% done] [ 21760/ 0 kb/s] [eta 00m:00s] Threads: 2: [_VV] [100.0% done] [ 28234/ 0 kb/s] [eta 00m:00s] fio: (groupid=0): err= 0: pid=32684 cpu : usr=0.00%, sys=0.00%, ctx=0 IO depths : 1=6.1%, 2=79.5%, 4=3.4%, 8=11.1%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=85.4%, 4=0.4%, 10=0.1%, 20=0.4%, 50=0.6%, 100=1.2% lat (msec): 250=8.5%, 500=3.2%, 750=0.0%, 1000=0.0%, >=2000=0.0% fio: (groupid=0): err= 0: pid=32685 read : io=100MiB, bw=3,704KiB/s, runt= 28306msec slat (msec): min= 0, max= 0, avg= 0.00, stdev= 0.00 clat (msec): min= 0, max= 647, avg=67.36, stdev=101.78 bw (KiB/s) : min= 9, max=15670, per=90.38%, avg=7206.11, stdev=5230.01 write: io=76,808KiB, bw=3,612KiB/s, runt= 21772msec slat (msec): min= 0, max= 0, avg= 0.00, stdev= 0.00 clat (msec): min= 0, max= 383, avg= 1.86, stdev=18.05 bw (KiB/s) : min= 0, max= 9493, per=42.05%, avg=4746.50, stdev=6712.56 cpu : usr=2.42%, sys=1.31%, ctx=5139 IO depths : 1=3.9%, 2=52.5%, 4=28.0%, 8=15.6%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=47.4%, 4=0.3%, 10=10.0%, 20=11.7%, 50=13.2%, 100=2.9% lat (msec): 250=11.5%, 500=2.3%, 750=0.6%, 1000=0.0%, >=2000=0.0% fio: (groupid=0): err= 0: pid=32686 read : io=100MiB, bw=3,662KiB/s, runt= 28631msec slat (msec): min= 0, max= 0, avg= 0.00, stdev= 0.00 clat (msec): min= 0, max= 619, avg=72.10, stdev=110.29 bw (KiB/s) : min= 13, max=15360, per=74.33%, avg=5926.16, stdev=5549.40 write: io=79,056KiB, bw=3,719KiB/s, runt= 21764msec slat (msec): min= 0, max= 0, avg= 0.00, stdev= 0.00 clat (msec): min= 0, max= 471, avg= 4.13, stdev=33.65 bw (KiB/s) : min= 0, max= 7979, per=32.56%, avg=3675.00, stdev=3713.29 cpu : usr=2.84%, sys=1.27%, ctx=5239 IO depths : 1=2.8%, 2=55.5%, 4=25.9%, 8=15.8%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=46.3%, 4=2.0%, 10=7.4%, 20=14.6%, 50=11.2%, 100=3.4% lat (msec): 250=10.7%, 500=3.5%, 750=0.8%, 1000=0.0%, >=2000=0.0% Run status group 0 (all jobs): READ: io=218MiB, aggrb=7,973KiB/s, minb=0KiB/s, maxb=3,704KiB/s, mint=28306msec, maxt=28631msec WRITE: io=234MiB, aggrb=11,288KiB/s, minb=0KiB/s, maxb=3,719KiB/s, mint=28306msec, maxt=28631msec Disk stats (read/write): sda: ios=1891/2996, merge=4903/56826, ticks=111780/2386440, in_queue=2507368, util=99.03% 2.34user 0.96system 0:29.01elapsed 11%CPU (0avgtext+0avgdata 0maxresident)k 0inputs+0outputs (0major+2496minor)pagefaults 0swaps