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] [5.0% done] [ 4547/ 325 kb/s] [eta 00m:57s] Threads: 3: [mmm] [6.7% done] [ 3307/ 0 kb/s] [eta 00m:56s] Threads: 3: [Fmm] [8.3% done] [ 2779/ 98685 kb/s] [eta 00m:55s] Threads: 3: [Fmm] [10.0% done] [ 1934/ 316 kb/s] [eta 00m:54s] Threads: 3: [Fmm] [11.7% done] [ 2190/ 646 kb/s] [eta 00m:53s] Threads: 3: [FmF] [21.1% done] [ 2125/ 51484 kb/s] [eta 00m:30s] Threads: 3: [FmF] [56.2% done] [ 223/ 52244 kb/s] [eta 00m:07s] fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed. fio: pid=15085, got signal=6 Threads: 2: [F_F] [100.0% done] [ 418/ 18562 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] [68.0% done] [ 1109/ 0 kb/s] [eta 00m:08s] Threads: 2: [V_F] [75.0% done] [ 11666/ 0 kb/s] [eta 00m:06s] Threads: 2: [V_F] [90.5% done] [ 21069/ 0 kb/s] [eta 00m:02s] Threads: 2: [V_F] [100.0% done] [ 20081/ 0 kb/s] [eta 00m:00s] Threads: 2: [V_F] [100.0% done] [ 28123/ 0 kb/s] [eta 00m:00s] Threads: 1: [__V] [71.0% done] [ 19671/ 0 kb/s] [eta 00m:09s] Threads: 1: [__V] [92.0% done] [ 31114/ 0 kb/s] [eta 00m:02s] Threads: 1: [__V] [100.0% done] [ 39854/ 0 kb/s] [eta 00m:00s] fio: (groupid=0): err= 0: pid=15084 read : io=100MiB, bw=4,779KiB/s, runt= 21941msec slat (msec): min= 0, max= 0, avg= 0.00, stdev= 0.00 clat (msec): min= 0, max= 1154, avg=41.83, stdev=119.64 bw (KiB/s) : min= 0, max=28459, per=115.99%, avg=10403.16, stdev=10514.92 write: io=95,948KiB, bw=5,895KiB/s, runt= 16664msec slat (msec): min= 0, max= 0, avg= 0.00, stdev= 0.00 clat (msec): min= 0, max= 582, avg= 1.71, stdev=26.16 bw (KiB/s) : min= 0, max=140320, per=519.59%, avg=70160.00, stdev=99221.22 cpu : usr=3.26%, sys=1.62%, ctx=7663 IO depths : 1=0.9%, 2=52.8%, 4=31.1%, 8=15.2%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=50.0%, 4=5.1%, 10=13.6%, 20=16.9%, 50=4.6%, 100=5.5% lat (msec): 250=2.7%, 500=0.4%, 750=0.4%, 1000=0.5%, >=2000=0.2% fio: (groupid=0): err= 0: pid=15085 cpu : usr=0.00%, sys=0.00%, ctx=0 IO depths : 1=0.4%, 2=89.5%, 4=3.1%, 8=7.0%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=90.6%, 4=0.3%, 10=0.0%, 20=0.0%, 50=0.3%, 100=0.4% lat (msec): 250=1.5%, 500=2.4%, 750=2.1%, 1000=1.8%, >=2000=0.4% fio: (groupid=0): err= 0: pid=15086 read : io=100MiB, bw=4,199KiB/s, runt= 24965msec slat (msec): min= 0, max= 0, avg= 0.00, stdev= 0.00 clat (msec): min= 0, max= 847, avg=45.24, stdev=130.69 bw (KiB/s) : min= 11, max=39993, per=102.17%, avg=9163.40, stdev=15015.88 write: io=96,396KiB, bw=4,635KiB/s, runt= 21292msec slat (msec): min= 0, max= 0, avg= 0.00, stdev= 0.00 clat (msec): min= 0, max= 615, avg= 5.49, stdev=44.77 bw (KiB/s) : min= 0, max=29515, per=44.58%, avg=6019.20, stdev=13134.98 cpu : usr=3.06%, sys=1.70%, ctx=8642 IO depths : 1=0.9%, 2=51.4%, 4=30.2%, 8=17.6%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=48.2%, 4=4.5%, 10=11.3%, 20=26.8%, 50=4.0%, 100=0.2% lat (msec): 250=1.5%, 500=1.5%, 750=1.5%, 1000=0.4%, >=2000=0.0% Run status group 0 (all jobs): READ: io=214MiB, aggrb=8,969KiB/s, minb=0KiB/s, maxb=4,779KiB/s, mint=24965msec, maxt=24965msec WRITE: io=274MiB, aggrb=13,503KiB/s, minb=0KiB/s, maxb=5,895KiB/s, mint=24965msec, maxt=24965msec Disk stats (read/write): sda: ios=2341/3006, merge=902/66839, ticks=55684/2725908, in_queue=2796692, util=98.87% 2.20user 1.04system 0:25.38elapsed 12%CPU (0avgtext+0avgdata 0maxresident)k 0inputs+0outputs (0major+2498minor)pagefaults 0swaps