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] [ 8004/ 73672 kb/s] [eta 00m:07s] Threads: 3: [FFm] [40.0% done] [ 656/ 52146 kb/s] [eta 00m:06s] Threads: 3: [FFm] [62.5% done] [ 804/ 30344 kb/s] [eta 00m:03s] Threads: 3: [FFm] [66.7% done] [ 520/ 8932 kb/s] [eta 00m:03s] Threads: 3: [FFm] [70.0% done] [ 632/ 0 kb/s] [eta 00m:03s] fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed. fio: pid=9921, got signal=6 Threads: 2: [FF_] [100.0% done] [ 2648/ 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_] [69.2% done] [ 8420/ 0 kb/s] [eta 00m:08s] Threads: 2: [VV_] [73.1% done] [ 34460/ 0 kb/s] [eta 00m:07s] Threads: 2: [VV_] [83.3% done] [ 31052/ 0 kb/s] [eta 00m:04s] Threads: 2: [VV_] [95.5% done] [ 38196/ 0 kb/s] [eta 00m:01s] Threads: 2: [VV_] [100.0% done] [ 33096/ 0 kb/s] [eta 00m:00s] Threads: 1: [VE_] [100.0% done] [ 36748/ 0 kb/s] [eta 00m:00s] fio: (groupid=0): err= 0: pid=9919 read : io=100MiB, bw=4,361KiB/s, runt= 24042msec slat (msec): min= 0, max= 0, avg= 0.00, stdev= 0.00 clat (msec): min= 0, max= 701, avg=33.00, stdev=68.21 bw (KiB/s) : min= 0, max=29809, per=128.21%, avg=11867.31, stdev=10513.66 write: io=98MiB, bw=5,699KiB/s, runt= 17968msec slat (msec): min= 0, max= 0, avg= 0.00, stdev= 0.00 clat (msec): min= 0, max= 535, avg= 3.02, stdev=25.35 bw (KiB/s) : min= 0, max=60517, per=123.98%, avg=20328.25, stdev=28296.13 cpu : usr=4.69%, sys=1.61%, ctx=6698 IO depths : 1=16.5%, 2=39.7%, 4=32.9%, 8=10.9%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=45.3%, 4=1.0%, 10=26.9%, 20=15.0%, 50=3.5%, 100=1.1% lat (msec): 250=6.3%, 500=0.5%, 750=0.3%, 1000=0.0%, >=2000=0.0% fio: (groupid=0): err= 0: pid=9920 read : io=100MiB, bw=4,447KiB/s, runt= 23576msec slat (msec): min= 0, max= 0, avg= 0.00, stdev= 0.00 clat (msec): min= 0, max= 701, avg=36.00, stdev=74.07 bw (KiB/s) : min= 2, max=34209, per=135.48%, avg=12539.93, stdev=10590.60 write: io=97,872KiB, bw=5,579KiB/s, runt= 17963msec slat (msec): min= 0, max= 1, avg= 0.00, stdev= 0.03 clat (msec): min= 0, max= 38, avg= 1.08, stdev= 3.79 bw (KiB/s) : min= 0, max=63858, per=153.81%, avg=25218.33, stdev=33978.82 cpu : usr=4.77%, sys=1.93%, ctx=6620 IO depths : 1=16.2%, 2=38.1%, 4=32.6%, 8=13.1%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=45.4%, 4=0.3%, 10=20.5%, 20=17.6%, 50=8.2%, 100=1.2% lat (msec): 250=5.5%, 500=0.8%, 750=0.3%, 1000=0.0%, >=2000=0.0% fio: (groupid=0): err= 0: pid=9921 cpu : usr=0.00%, sys=0.00%, ctx=0 IO depths : 1=0.2%, 2=84.6%, 4=5.5%, 8=9.6%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=84.4%, 4=0.3%, 10=0.1%, 20=0.7%, 50=4.1%, 100=1.4% lat (msec): 250=3.7%, 500=2.9%, 750=0.8%, 1000=1.1%, >=2000=0.1% Run status group 0 (all jobs): READ: io=212MiB, aggrb=9,256KiB/s, minb=0KiB/s, maxb=4,447KiB/s, mint=0msec, maxt=24042msec WRITE: io=281MiB, aggrb=16,396KiB/s, minb=0KiB/s, maxb=5,699KiB/s, mint=0msec, maxt=24042msec Disk stats (read/write): sda: ios=2302/2779, merge=863/68923, ticks=46996/2253072, in_queue=2301000, util=98.56% 2.99user 1.11system 0:24.36elapsed 16%CPU (0avgtext+0avgdata 0maxresident)k 0inputs+0outputs (0major+2487minor)pagefaults 0swaps