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=28799, got signal=6 Threads: 2: [F_F] [100.0% done] [ 320/ 49908 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: [F_V] [73.3% done] [ 3946/ 0 kb/s] [eta 00m:04s] Threads: 2: [F_V] [75.0% done] [ 5847/ 0 kb/s] [eta 00m:04s] Threads: 2: [F_V] [81.2% done] [ 7314/ 0 kb/s] [eta 00m:03s] Threads: 2: [F_V] [93.3% done] [ 15632/ 0 kb/s] [eta 00m:01s] Threads: 2: [F_V] [93.8% done] [ 5030/ 0 kb/s] [eta 00m:01s] Threads: 2: [F_V] [100.0% done] [ 16156/ 0 kb/s] [eta 00m:00s] Threads: 2: [F_V] [100.0% done] [ 11162/ 0 kb/s] [eta 00m:00s] Threads: 2: [F_V] [100.0% done] [ 10776/ 0 kb/s] [eta 00m:00s] Threads: 2: [F_V] [100.0% done] [ 5319/ 0 kb/s] [eta 00m:00s] Threads: 1: [V_E] [69.0% done] [ 19842/ 0 kb/s] [eta 00m:09s] Threads: 1: [V__] [91.3% done] [ 31572/ 0 kb/s] [eta 00m:02s] Threads: 1: [V__] [100.0% done] [ 41884/ 0 kb/s] [eta 00m:00s] fio: (groupid=0): err= 0: pid=28798 read : io=100MiB, bw=4,529KiB/s, runt= 23078msec slat (msec): min= 0, max= 0, avg= 0.00, stdev= 0.00 clat (msec): min= 0, max= 295, avg=17.58, stdev=33.22 bw (KiB/s) : min= 4, max=41648, per=222.95%, avg=21271.50, stdev=18395.38 write: io=98,644KiB, bw=5,050KiB/s, runt= 20000msec slat (msec): min= 0, max= 0, avg= 0.00, stdev= 0.00 clat (msec): min= 0, max= 222, avg= 0.81, stdev= 9.07 bw (KiB/s) : min= 0, max=128352, per=434.97%, avg=64176.00, stdev=90758.57 cpu : usr=3.28%, sys=1.84%, ctx=5251 IO depths : 1=1.3%, 2=54.8%, 4=31.8%, 8=12.2%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=49.3%, 4=2.8%, 10=20.9%, 20=18.8%, 50=5.2%, 100=1.2% lat (msec): 250=1.4%, 500=0.1%, 750=0.0%, 1000=0.0%, >=2000=0.0% fio: (groupid=0): err= 0: pid=28799 cpu : usr=0.00%, sys=0.00%, ctx=0 IO depths : 1=0.1%, 2=93.1%, 4=2.0%, 8=4.8%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=94.1%, 4=0.5%, 10=0.1%, 20=0.1%, 50=0.3%, 100=0.5% lat (msec): 250=4.1%, 500=0.1%, 750=0.0%, 1000=0.0%, >=2000=0.0% fio: (groupid=0): err= 0: pid=28800 read : io=100MiB, bw=5,150KiB/s, runt= 20360msec slat (msec): min= 0, max= 0, avg= 0.00, stdev= 0.00 clat (msec): min= 0, max= 434, avg=55.45, stdev=60.74 bw (KiB/s) : min= 2, max=17423, per=81.60%, avg=7785.39, stdev=5192.99 write: io=97,740KiB, bw=9,657KiB/s, runt= 10364msec slat (msec): min= 0, max= 0, avg= 0.00, stdev= 0.00 clat (msec): min= 0, max= 327, avg= 1.02, stdev=13.98 bw (KiB/s) : min= 0, max=138330, per=312.80%, avg=46150.67, stdev=79829.67 cpu : usr=3.61%, sys=2.38%, ctx=5694 IO depths : 1=0.4%, 2=50.6%, 4=31.5%, 8=17.4%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=48.6%, 4=1.2%, 10=5.5%, 20=12.0%, 50=12.8%, 100=9.8% lat (msec): 250=9.3%, 500=0.7%, 750=0.0%, 1000=0.0%, >=2000=0.0% Run status group 0 (all jobs): READ: io=210MiB, aggrb=9,541KiB/s, minb=0KiB/s, maxb=5,150KiB/s, mint=20360msec, maxt=23078msec WRITE: io=281MiB, aggrb=14,754KiB/s, minb=0KiB/s, maxb=9,657KiB/s, mint=20360msec, maxt=23078msec Disk stats (read/write): sda: ios=2282/2962, merge=1182/68827, ticks=41652/2394676, in_queue=2566600, util=98.66% 2.22user 1.20system 0:23.48elapsed 14%CPU (0avgtext+0avgdata 0maxresident)k 0inputs+0outputs (0major+2500minor)pagefaults 0swaps