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] [30.0% done] [ 10648/ 95396 kb/s] [eta 00m:07s] fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed. fio: pid=23595, got signal=6 Threads: 2: [F_m] [44.4% done] [ 7191/ 95064 kb/s] [eta 00m:05s] Threads: 2: [F_m] [45.5% done] [ 884/ 452 kb/s] [eta 00m:06s] Threads: 2: [F_m] [46.2% done] [ 1168/ 0 kb/s] [eta 00m:07s] Threads: 2: [F_m] [53.8% done] [ 368/ 11720 kb/s] [eta 00m:06s] Threads: 2: [V_m] [53.3% done] [ 884/ 0 kb/s] [eta 00m:07s] Threads: 2: [V_m] [52.9% done] [ 17416/ 0 kb/s] [eta 00m:08s] Threads: 2: [V_m] [55.6% done] [ 26028/ 0 kb/s] [eta 00m:08s] Threads: 2: [V_m] [64.7% done] [ 25036/ 12260 kb/s] [eta 00m:06s] Threads: 2: [V_m] [63.2% done] [ 21920/ 0 kb/s] [eta 00m:07s] Threads: 1: [__F] [100.0% done] [ 4044/ 6028 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] 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: [__V] [77.8% done] [ 13100/ 0 kb/s] [eta 00m:06s] Threads: 1: [__V] [95.7% done] [ 27660/ 0 kb/s] [eta 00m:01s] Threads: 1: [__V] [100.0% done] [ 31352/ 0 kb/s] [eta 00m:00s] fio: (groupid=0): err= 0: pid=23594 read : io=100MiB, bw=8,399KiB/s, runt= 12482msec slat (msec): min= 0, max= 0, avg= 0.00, stdev= 0.00 clat (msec): min= 0, max= 470, avg=34.22, stdev=58.47 bw (KiB/s) : min= 17, max=28247, per=138.39%, avg=12948.87, stdev=10809.49 write: io=90,656KiB, bw=11,304KiB/s, runt= 8212msec slat (msec): min= 0, max= 0, avg= 0.00, stdev= 0.00 clat (msec): min= 0, max= 431, avg= 2.24, stdev=21.91 bw (KiB/s) : min= 0, max=15087, per=66.41%, avg=8511.00, stdev=7727.39 cpu : usr=5.38%, sys=2.85%, ctx=3788 IO depths : 1=1.4%, 2=54.5%, 4=29.7%, 8=14.4%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=48.7%, 4=0.2%, 10=18.7%, 20=12.3%, 50=9.7%, 100=5.5% lat (msec): 250=3.1%, 500=1.4%, 750=0.0%, 1000=0.0%, >=2000=0.0% fio: (groupid=0): err= 0: pid=23595 cpu : usr=0.00%, sys=0.00%, ctx=0 IO depths : 1=0.2%, 2=89.5%, 4=3.6%, 8=6.7%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=90.6%, 4=0.5%, 10=0.1%, 20=0.1%, 50=0.4%, 100=2.1% lat (msec): 250=3.7%, 500=2.3%, 750=0.0%, 1000=0.0%, >=2000=0.0% fio: (groupid=0): err= 0: pid=23596 read : io=100MiB, bw=4,378KiB/s, runt= 23926msec slat (msec): min= 0, max= 0, avg= 0.00, stdev= 0.00 clat (msec): min= 0, max= 782, avg=71.78, stdev=138.69 bw (KiB/s) : min= 1, max=33751, per=68.24%, avg=6385.29, stdev=10303.33 write: io=80,240KiB, bw=3,966KiB/s, runt= 20716msec slat (msec): min= 0, max= 0, avg= 0.00, stdev= 0.00 clat (msec): min= 0, max= 511, avg= 5.69, stdev=38.59 bw (KiB/s) : min= 0, max=25643, per=45.43%, avg=5822.67, stdev=9885.67 cpu : usr=2.61%, sys=1.69%, ctx=5218 IO depths : 1=1.1%, 2=48.6%, 4=30.8%, 8=19.5%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=43.9%, 4=0.1%, 10=16.2%, 20=16.5%, 50=9.9%, 100=2.0% lat (msec): 250=5.1%, 500=4.1%, 750=1.7%, 1000=0.1%, >=2000=0.0% Run status group 0 (all jobs): READ: io=214MiB, aggrb=9,357KiB/s, minb=0KiB/s, maxb=8,399KiB/s, mint=23926msec, maxt=23926msec WRITE: io=253MiB, aggrb=12,816KiB/s, minb=0KiB/s, maxb=11,304KiB/s, mint=23926msec, maxt=23926msec Disk stats (read/write): sda: ios=2789/2726, merge=1117/61915, ticks=48836/2404688, in_queue=2457032, util=98.56% 2.04user 1.01system 0:24.30elapsed 12%CPU (0avgtext+0avgdata 0maxresident)k 0inputs+0outputs (0major+2484minor)pagefaults 0swaps