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: [mmF] [30.0% done] [ 2848/ 90496 kb/s] [eta 00m:07s] fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed. fio: pid=15162, got signal=6 Threads: 2: [_mF] [30.8% done] [ 1497/ 42949 kb/s] [eta 00m:09s] Threads: 2: [_mF] [35.7% done] [ 1072/ 7712 kb/s] [eta 00m:09s] Threads: 2: [_mF] [40.0% done] [ 964/ 4384 kb/s] [eta 00m:09s] Threads: 2: [_mF] [41.2% done] [ 764/ 564 kb/s] [eta 00m:10s] Threads: 2: [_mF] [50.0% done] [ 752/ 11004 kb/s] [eta 00m:08s] Threads: 2: [_mF] [50.0% done] [ 796/ 0 kb/s] [eta 00m:09s] Threads: 2: [_mF] [58.8% done] [ 556/ 12644 kb/s] [eta 00m:07s] Threads: 2: [_mF] [57.9% done] [ 772/ 0 kb/s] [eta 00m:08s] Threads: 2: [_FF] [100.0% done] [ 24/ 14336 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] [66.7% done] [ 1372/ 0 kb/s] [eta 00m:09s] Threads: 2: [_VV] [79.2% done] [ 29846/ 0 kb/s] [eta 00m:05s] Threads: 2: [_VV] [90.9% done] [ 31470/ 0 kb/s] [eta 00m:02s] Threads: 2: [_VV] [100.0% done] [ 32608/ 0 kb/s] [eta 00m:00s] Threads: 2: [_VV] [100.0% done] [ 35760/ 0 kb/s] [eta 00m:00s] Threads: 2: [_VV] [100.0% done] [ 24856/ 0 kb/s] [eta 00m:00s] fio: (groupid=0): err= 0: pid=15162 cpu : usr=0.00%, sys=0.00%, ctx=0 IO depths : 1=1.4%, 2=94.7%, 4=1.8%, 8=2.2%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=95.4%, 4=1.0%, 10=0.6%, 20=0.4%, 50=0.0%, 100=0.1% lat (msec): 250=0.2%, 500=0.4%, 750=1.7%, 1000=0.0%, >=2000=0.0% fio: (groupid=0): err= 0: pid=15163 read : io=100MiB, bw=4,283KiB/s, runt= 24478msec slat (msec): min= 0, max= 0, avg= 0.00, stdev= 0.00 clat (msec): min= 0, max= 866, avg=72.50, stdev=147.17 bw (KiB/s) : min= 36, max=26140, per=67.15%, avg=5825.09, stdev=7470.15 write: io=89,956KiB, bw=5,054KiB/s, runt= 18224msec slat (msec): min= 0, max= 0, avg= 0.00, stdev= 0.00 clat (msec): min= 0, max= 759, avg=11.33, stdev=66.07 bw (KiB/s) : min= 0, max=30081, per=42.94%, avg=6938.75, stdev=9853.28 cpu : usr=2.79%, sys=1.39%, ctx=5424 IO depths : 1=1.3%, 2=52.1%, 4=30.9%, 8=15.7%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=46.6%, 4=0.3%, 10=17.2%, 20=15.8%, 50=5.9%, 100=0.7% lat (msec): 250=7.7%, 500=3.4%, 750=1.8%, 1000=0.5%, >=2000=0.0% fio: (groupid=0): err= 0: pid=15164 read : io=100MiB, bw=4,338KiB/s, runt= 24167msec slat (msec): min= 0, max= 0, avg= 0.00, stdev= 0.00 clat (msec): min= 0, max= 903, avg=36.05, stdev=78.79 bw (KiB/s) : min= 1, max=25772, per=135.18%, avg=11727.00, stdev=9421.09 write: io=97,852KiB, bw=5,595KiB/s, runt= 17908msec slat (msec): min= 0, max= 0, avg= 0.00, stdev= 0.00 clat (msec): min= 0, max= 799, avg= 3.20, stdev=38.60 bw (KiB/s) : min= 0, max=35503, per=109.84%, avg=17751.50, stdev=25104.41 cpu : usr=3.11%, sys=1.62%, ctx=5410 IO depths : 1=1.2%, 2=56.0%, 4=31.4%, 8=11.3%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=51.0%, 4=0.2%, 10=21.0%, 20=15.4%, 50=3.7%, 100=0.8% lat (msec): 250=6.5%, 500=0.9%, 750=0.3%, 1000=0.1%, >=2000=0.0% Run status group 0 (all jobs): READ: io=203MiB, aggrb=8,675KiB/s, minb=0KiB/s, maxb=4,338KiB/s, mint=24167msec, maxt=24478msec WRITE: io=281MiB, aggrb=16,161KiB/s, minb=0KiB/s, maxb=5,595KiB/s, mint=24167msec, maxt=24478msec Disk stats (read/write): sda: ios=2348/2851, merge=971/68849, ticks=68928/2256112, in_queue=2326932, util=99.11% 2.31user 1.00system 0:24.85elapsed 13%CPU (0avgtext+0avgdata 0maxresident)k 0inputs+0outputs (0major+2491minor)pagefaults 0swaps