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=1007, got signal=6 Threads: 2 Threads: 2: [m_F] [75.0% done] [ 1076/ 30447 kb/s] [eta 00m:01s] Threads: 2: [F_F] [100.0% done] [ 0/ 4729 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: [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] [66.7% done] [ 0/ 0 kb/s] [eta 00m:06s] Threads: 2: [V_F] [76.5% done] [ 10975/ 0 kb/s] [eta 00m:04s] Threads: 2: [V_F] [82.4% done] [ 11491/ 0 kb/s] [eta 00m:03s] Threads: 2: [V_F] [100.0% done] [ 22259/ 0 kb/s] [eta 00m:00s] Threads: 2: [V_F] [100.0% done] [ 15733/ 0 kb/s] [eta 00m:00s] Threads: 2: [V_F] [100.0% done] [ 5912/ 0 kb/s] [eta 00m:00s] Threads: 2: [V_F] [100.0% done] [ 10418/ 0 kb/s] [eta 00m:00s] Threads: 2: [V_V] [67.9% done] [ 11544/ 0 kb/s] [eta 00m:09s] Threads: 1: [__V] [69.0% done] [ 12771/ 0 kb/s] [eta 00m:09s] Threads: 1: [__V] [75.0% done] [ 8312/ 0 kb/s] [eta 00m:07s] Threads: 1: [__V] [88.0% done] [ 18764/ 0 kb/s] [eta 00m:03s] Threads: 1: [__V] [92.0% done] [ 8792/ 0 kb/s] [eta 00m:02s] Threads: 1: [__V] [100.0% done] [ 17029/ 0 kb/s] [eta 00m:00s] Threads: 1: [__V] [100.0% done] [ 34444/ 0 kb/s] [eta 00m:00s] fio: (groupid=0): err= 0: pid=1006 read : io=100MiB, bw=5,206KiB/s, runt= 20141msec slat (msec): min= 0, max= 0, avg= 0.00, stdev= 0.00 clat (msec): min= 0, max= 595, avg=49.56, stdev=73.99 bw (KiB/s) : min= 9, max=25673, per=110.12%, avg=9317.45, stdev=7403.28 write: io=96,724KiB, bw=8,169KiB/s, runt= 12124msec slat (msec): min= 0, max= 0, avg= 0.00, stdev= 0.00 clat (msec): min= 0, max= 175, avg= 0.65, stdev= 7.67 bw (KiB/s) : min= 0, max=22000, per=70.44%, avg=11000.00, stdev=15556.35 cpu : usr=3.69%, sys=2.32%, ctx=7095 IO depths : 1=0.8%, 2=51.7%, 4=30.1%, 8=17.4%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=48.5%, 4=2.2%, 10=9.5%, 20=14.9%, 50=9.6%, 100=7.6% lat (msec): 250=6.1%, 500=1.4%, 750=0.2%, 1000=0.0%, >=2000=0.0% fio: (groupid=0): err= 0: pid=1007 cpu : usr=0.00%, sys=0.00%, ctx=0 IO depths : 1=0.1%, 2=91.7%, 4=2.9%, 8=5.2%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=86.9%, 4=6.0%, 10=0.1%, 20=0.3%, 50=1.2%, 100=3.5% lat (msec): 250=1.4%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0% fio: (groupid=0): err= 0: pid=1008 read : io=100MiB, bw=4,083KiB/s, runt= 25681msec slat (msec): min= 0, max= 0, avg= 0.00, stdev= 0.00 clat (msec): min= 0, max= 538, avg=32.66, stdev=51.01 bw (KiB/s) : min= 13, max=36985, per=159.07%, avg=13458.73, stdev=12138.10 write: io=98MiB, bw=5,385KiB/s, runt= 19172msec slat (msec): min= 0, max= 1, avg= 0.00, stdev= 0.03 clat (msec): min= 0, max= 159, avg= 0.75, stdev= 7.68 bw (KiB/s) : min= 0, max=114606, per=312.25%, avg=48760.33, stdev=59182.47 cpu : usr=3.99%, sys=1.65%, ctx=9319 IO depths : 1=16.3%, 2=42.6%, 4=29.3%, 8=11.9%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=48.9%, 4=1.3%, 10=17.1%, 20=13.2%, 50=10.1%, 100=4.8% lat (msec): 250=4.0%, 500=0.3%, 750=0.1%, 1000=0.0%, >=2000=0.0% Run status group 0 (all jobs): READ: io=207MiB, aggrb=8,461KiB/s, minb=0KiB/s, maxb=5,206KiB/s, mint=25681msec, maxt=25681msec WRITE: io=286MiB, aggrb=15,616KiB/s, minb=0KiB/s, maxb=8,169KiB/s, mint=25681msec, maxt=25681msec Disk stats (read/write): sda: ios=2300/3582, merge=596/69178, ticks=50344/3174424, in_queue=3291820, util=98.47% 2.72user 1.10system 0:25.97elapsed 14%CPU (0avgtext+0avgdata 0maxresident)k 0inputs+0outputs (0major+2496minor)pagefaults 0swaps