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] [33.3% done] [ 9304/ 75764 kb/s] [eta 00m:06s] Threads: 3: [mFm] [57.1% done] [ 3224/ 70212 kb/s] [eta 00m:03s] fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed. Threads: 3: [FFm] [62.5% done] [ 1112/ 15228 kb/s] [eta 00m:03s] fio: pid=15115, got signal=6 Threads: 2: [_Fm] [60.0% done] [ 432/ 0 kb/s] [eta 00m:04s] Threads: 2: [_FF] [100.0% done] [ 728/ 9772 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: [_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] [67.9% done] [ 6990/ 0 kb/s] [eta 00m:09s] Threads: 2: [_VV] [74.1% done] [ 25024/ 0 kb/s] [eta 00m:07s] Threads: 2: [_VV] [87.5% done] [ 33984/ 0 kb/s] [eta 00m:03s] Threads: 2: [_VV] [95.7% done] [ 30028/ 0 kb/s] [eta 00m:01s] Threads: 2: [_VV] [100.0% done] [ 32984/ 0 kb/s] [eta 00m:00s] Threads: 2: [_VV] [100.0% done] [ 31000/ 0 kb/s] [eta 00m:00s] fio: (groupid=0): err= 0: pid=15115 cpu : usr=0.00%, sys=0.00%, ctx=0 IO depths : 1=0.3%, 2=89.8%, 4=2.6%, 8=7.3%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=90.6%, 4=0.2%, 10=0.1%, 20=0.1%, 50=0.4%, 100=0.6% lat (msec): 250=4.3%, 500=2.8%, 750=0.4%, 1000=0.0%, >=2000=0.0% fio: (groupid=0): err= 0: pid=15116 read : io=100MiB, bw=4,152KiB/s, runt= 25250msec slat (msec): min= 0, max= 0, avg= 0.00, stdev= 0.00 clat (msec): min= 0, max= 491, avg=39.28, stdev=63.98 bw (KiB/s) : min= 13, max=22454, per=121.44%, avg=10617.50, stdev=7701.68 write: io=93,952KiB, bw=5,068KiB/s, runt= 18980msec slat (msec): min= 0, max= 0, avg= 0.00, stdev= 0.00 clat (msec): min= 0, max= 250, avg= 1.84, stdev=15.53 bw (KiB/s) : min= 0, max=37232, per=139.42%, avg=20486.00, stdev=18895.67 cpu : usr=2.87%, sys=1.60%, ctx=5392 IO depths : 1=2.2%, 2=56.1%, 4=29.8%, 8=11.9%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=48.9%, 4=0.4%, 10=19.1%, 20=15.9%, 50=4.7%, 100=1.2% lat (msec): 250=8.4%, 500=1.2%, 750=0.0%, 1000=0.0%, >=2000=0.0% fio: (groupid=0): err= 0: pid=15117 read : io=100MiB, bw=4,125KiB/s, runt= 25418msec slat (msec): min= 0, max= 0, avg= 0.00, stdev= 0.00 clat (msec): min= 0, max= 647, avg=57.63, stdev=105.07 bw (KiB/s) : min= 5, max=21181, per=81.66%, avg=7139.92, stdev=7209.18 write: io=88,264KiB, bw=4,763KiB/s, runt= 18972msec slat (msec): min= 0, max= 0, avg= 0.00, stdev= 0.00 clat (msec): min= 0, max= 415, avg= 2.60, stdev=22.25 bw (KiB/s) : min= 0, max=20585, per=77.77%, avg=11428.00, stdev=10479.88 cpu : usr=2.74%, sys=1.24%, ctx=5540 IO depths : 1=2.3%, 2=53.7%, 4=29.5%, 8=14.5%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=47.6%, 4=0.5%, 10=15.8%, 20=16.5%, 50=5.9%, 100=2.0% lat (msec): 250=8.4%, 500=2.4%, 750=0.8%, 1000=0.0%, >=2000=0.0% Run status group 0 (all jobs): READ: io=212MiB, aggrb=8,743KiB/s, minb=0KiB/s, maxb=4,152KiB/s, mint=25250msec, maxt=25418msec WRITE: io=266MiB, aggrb=14,694KiB/s, minb=0KiB/s, maxb=5,068KiB/s, mint=25250msec, maxt=25418msec Disk stats (read/write): sda: ios=2582/2769, merge=826/65069, ticks=65300/2186124, in_queue=2267204, util=98.06% 2.18user 1.00system 0:26.12elapsed 12%CPU (0avgtext+0avgdata 0maxresident)k 0inputs+0outputs (0major+2494minor)pagefaults 0swaps