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 fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed. fio: pid=22176, got signal=6 Threads: 2 Threads: 2: [m_F] [75.0% done] [ 848/ 0 kb/s] [eta 00m:01s] Threads: 2: [m_F] [66.7% done] [ 460/ 0 kb/s] [eta 00m:02s] Threads: 2: [m_F] [71.4% done] [ 704/ 0 kb/s] [eta 00m:02s] Threads: 2: [m_F] [66.7% done] [ 508/ 0 kb/s] [eta 00m:03s] Threads: 2: [m_F] [70.0% done] [ 440/ 0 kb/s] [eta 00m:03s] Threads: 2: [m_F] [66.7% done] [ 316/ 0 kb/s] [eta 00m:04s] Threads: 2: [F_F] [100.0% done] [ 200/ 2304 kb/s] [eta 00m:00s] Threads: 2: [F_F] [100.0% done] [ 0/ 0 kb/s] [eta 00m:00s] Threads: 2: [F_F] [100.0% done] [ 0/ 0 kb/s] [eta 00m:00s] Threads: 2: [F_F] [100.0% done] [ 0/ 0 kb/s] [eta 00m:00s] Threads: 2: [F_F] [100.0% done] [ 0/ 0 kb/s] [eta 00m:00s] Threads: 2: [F_F] [100.0% done] [ 0/ 0 kb/s] [eta 00m:00s] Threads: 2: [V_F] [68.2% done] [ 240/ 0 kb/s] [eta 00m:07s] Threads: 2: [V_F] [76.2% done] [ 11040/ 0 kb/s] [eta 00m:05s] Threads: 2: [V_F] [85.0% done] [ 16340/ 0 kb/s] [eta 00m:03s] Threads: 2: [V_F] [94.7% done] [ 12136/ 0 kb/s] [eta 00m:01s] Threads: 2: [V_F] [100.0% done] [ 16384/ 0 kb/s] [eta 00m:00s] Threads: 2: [V_F] [100.0% done] [ 12536/ 0 kb/s] [eta 00m:00s] Threads: 2: [V_V] [67.7% done] [ 18498/ 0 kb/s] [eta 00m:10s] Threads: 1: [__V] [78.6% done] [ 26836/ 0 kb/s] [eta 00m:06s] Threads: 1: [__V] [100.0% done] [ 35060/ 0 kb/s] [eta 00m:00s] Threads: 1: [__V] [100.0% done] [ 37136/ 0 kb/s] [eta 00m:00s] fio: (groupid=0): err= 0: pid=22175 read : io=100MiB, bw=4,733KiB/s, runt= 22149msec slat (msec): min= 0, max= 0, avg= 0.00, stdev= 0.00 clat (msec): min= 0, max= 655, avg=68.12, stdev=120.22 bw (KiB/s) : min= 3, max=27452, per=73.04%, avg=6276.79, stdev=7978.56 write: io=97,616KiB, bw=6,597KiB/s, runt= 15152msec slat (msec): min= 0, max= 0, avg= 0.00, stdev= 0.00 clat (msec): min= 0, max= 327, avg= 1.39, stdev=15.19 bw (KiB/s) : min= 0, max=71561, per=185.75%, avg=26318.33, stdev=39355.33 cpu : usr=4.53%, sys=2.24%, ctx=5625 IO depths : 1=1.3%, 2=52.7%, 4=30.1%, 8=15.8%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=43.3%, 4=4.6%, 10=16.6%, 20=10.3%, 50=9.6%, 100=5.1% lat (msec): 250=6.2%, 500=3.1%, 750=1.1%, 1000=0.0%, >=2000=0.0% fio: (groupid=0): err= 0: pid=22176 cpu : usr=0.00%, sys=0.00%, ctx=0 IO depths : 1=0.3%, 2=92.3%, 4=4.3%, 8=3.1%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=92.3%, 4=2.7%, 10=0.6%, 20=0.5%, 50=0.4%, 100=0.9% lat (msec): 250=2.2%, 500=0.2%, 750=0.0%, 1000=0.0%, >=2000=0.0% fio: (groupid=0): err= 0: pid=22177 read : io=100MiB, bw=4,211KiB/s, runt= 24898msec slat (msec): min= 0, max= 0, avg= 0.00, stdev= 0.00 clat (msec): min= 0, max= 549, avg=18.29, stdev=40.83 bw (KiB/s) : min= 6, max=41590, per=242.07%, avg=20803.44, stdev=17764.47 write: io=98,024KiB, bw=4,727KiB/s, runt= 21232msec slat (msec): min= 0, max= 0, avg= 0.00, stdev= 0.00 clat (msec): min= 0, max= 112, avg= 0.56, stdev= 4.65 bw (KiB/s) : min= 0, max=31357, per=110.65%, avg=15678.50, stdev=22172.75 cpu : usr=3.98%, sys=1.86%, ctx=5360 IO depths : 1=1.6%, 2=56.5%, 4=31.0%, 8=10.9%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=46.6%, 4=3.5%, 10=24.7%, 20=17.6%, 50=4.6%, 100=0.9% lat (msec): 250=1.4%, 500=0.3%, 750=0.1%, 1000=0.0%, >=2000=0.0% Run status group 0 (all jobs): READ: io=204MiB, aggrb=8,594KiB/s, minb=0KiB/s, maxb=4,733KiB/s, mint=24898msec, maxt=24898msec WRITE: io=287MiB, aggrb=14,169KiB/s, minb=0KiB/s, maxb=6,597KiB/s, mint=24898msec, maxt=24898msec Disk stats (read/write): sda: ios=2294/3508, merge=887/69610, ticks=46452/2657108, in_queue=2744352, util=96.64% 2.85user 1.27system 0:25.29elapsed 16%CPU (0avgtext+0avgdata 0maxresident)k 0inputs+0outputs (0major+2498minor)pagefaults 0swaps