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 fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed. fio: pid=26997, got signal=6 Threads: 2: [_mm] [42.9% done] [ 8216/ 98964 kb/s] [eta 00m:04s] Threads: 2: [_mF] [40.0% done] [ 1156/ 21608 kb/s] [eta 00m:06s] Threads: 2: [_mF] [41.7% done] [ 992/ 0 kb/s] [eta 00m:07s] Threads: 2: [_mF] [40.0% done] [ 704/ 0 kb/s] [eta 00m:09s] Threads: 2: [_mF] [41.2% done] [ 944/ 500 kb/s] [eta 00m:10s] Threads: 2: [_mF] [57.1% done] [ 672/ 20276 kb/s] [eta 00m:06s] Threads: 2: [_mV] [56.2% done] [ 912/ 0 kb/s] [eta 00m:07s] Threads: 2: [_FV] [76.9% done] [ 14664/ 17700 kb/s] [eta 00m:03s] Threads: 2: [_FV] [84.6% done] [ 5504/ 0 kb/s] [eta 00m:02s] Threads: 2: [_FV] [85.7% done] [ 8276/ 0 kb/s] [eta 00m:02s] Threads: 2: [_FV] [92.9% done] [ 10774/ 0 kb/s] [eta 00m:01s] Threads: 2: [_FV] [100.0% done] [ 9528/ 0 kb/s] [eta 00m:00s] Threads: 2: [_FV] [100.0% done] [ 15433/ 0 kb/s] [eta 00m:00s] Threads: 2: [_FV] [100.0% done] [ 4693/ 0 kb/s] [eta 00m:00s] Threads: 2: [_FV] [100.0% done] [ 6164/ 0 kb/s] [eta 00m:00s] Threads: 2: [_FV] [100.0% done] [ 7984/ 0 kb/s] [eta 00m:00s] Threads: 2: [_FV] [100.0% done] [ 5900/ 0 kb/s] [eta 00m:00s] Threads: 1: [_F_] [100.0% done] [ 2519/ 0 kb/s] [eta 00m:00s] Threads: 1: [_F_] [100.0% done] [ 0/ 0 kb/s] [eta 00m:00s] Threads: 1: [_V_] [71.0% done] [ 3657/ 0 kb/s] [eta 00m:09s] Threads: 1: [_V_] [92.0% done] [ 30732/ 0 kb/s] [eta 00m:02s] Threads: 1: [_V_] [100.0% done] [ 28984/ 0 kb/s] [eta 00m:00s] fio: (groupid=0): err= 0: pid=26997 cpu : usr=0.00%, sys=0.00%, ctx=0 IO depths : 1=0.2%, 2=94.0%, 4=3.4%, 8=2.3%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=96.1%, 4=0.5%, 10=0.0%, 20=0.1%, 50=0.3%, 100=0.2% lat (msec): 250=1.4%, 500=1.1%, 750=0.2%, 1000=0.0%, >=2000=0.0% fio: (groupid=0): err= 0: pid=26998 read : io=100MiB, bw=4,174KiB/s, runt= 25118msec slat (msec): min= 0, max= 0, avg= 0.00, stdev= 0.00 clat (msec): min= 0, max= 867, avg=55.53, stdev=127.01 bw (KiB/s) : min= 17, max=34551, per=91.62%, avg=7812.83, stdev=11951.80 write: io=83,416KiB, bw=3,847KiB/s, runt= 22200msec slat (msec): min= 0, max= 0, avg= 0.00, stdev= 0.00 clat (msec): min= 0, max= 567, avg= 4.51, stdev=36.87 bw (KiB/s) : min= 0, max= 9987, per=39.64%, avg=4969.50, stdev=5531.66 cpu : usr=2.77%, sys=1.85%, ctx=6867 IO depths : 1=0.6%, 2=47.4%, 4=29.7%, 8=22.4%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=45.1%, 4=2.5%, 10=9.5%, 20=27.0%, 50=6.7%, 100=1.9% lat (msec): 250=3.3%, 500=2.3%, 750=1.4%, 1000=0.3%, >=2000=0.0% fio: (groupid=0): err= 0: pid=26999 read : io=100MiB, bw=5,306KiB/s, runt= 19725msec slat (msec): min= 0, max= 0, avg= 0.00, stdev= 0.00 clat (msec): min= 0, max= 450, avg=64.62, stdev=72.21 bw (KiB/s) : min= 3, max=21713, per=89.16%, avg=7602.73, stdev=5350.51 write: io=90,560KiB, bw=10,217KiB/s, runt= 9076msec slat (msec): min= 0, max= 1, avg= 0.00, stdev= 0.03 clat (msec): min= 0, max= 59, avg= 0.29, stdev= 2.43 bw (KiB/s) : min= 0, max=133898, per=534.10%, avg=66949.00, stdev=94680.18 cpu : usr=3.63%, sys=2.56%, ctx=5414 IO depths : 1=0.6%, 2=51.4%, 4=31.1%, 8=16.9%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=48.2%, 4=1.5%, 10=6.1%, 20=11.2%, 50=11.1%, 100=10.6% lat (msec): 250=9.7%, 500=1.5%, 750=0.0%, 1000=0.0%, >=2000=0.0% Run status group 0 (all jobs): READ: io=204MiB, aggrb=8,527KiB/s, minb=0KiB/s, maxb=5,306KiB/s, mint=19725msec, maxt=25118msec WRITE: io=265MiB, aggrb=12,535KiB/s, minb=0KiB/s, maxb=10,217KiB/s, mint=19725msec, maxt=25118msec Disk stats (read/write): sda: ios=2728/2881, merge=860/64976, ticks=60876/2653416, in_queue=2717900, util=98.91% 2.22user 1.25system 0:25.62elapsed 13%CPU (0avgtext+0avgdata 0maxresident)k 0inputs+0outputs (0major+2493minor)pagefaults 0swaps