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: [mFm] [15.8% done] [ 192/ 0 kb/s] [eta 00m:16s] Threads: 3: [mFm] [15.4% done] [ 292/ 0 kb/s] [eta 00m:22s] Threads: 3: [mFm] [15.6% done] [ 320/ 0 kb/s] [eta 00m:27s] Threads: 3: [mFm] [15.8% done] [ 496/ 0 kb/s] [eta 00m:32s] fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed. fio: pid=2391, got signal=6 Threads: 2: [_Fm] [15.9% done] [ 564/ 53584 kb/s] [eta 00m:37s] Threads: 2: [_Fm] [36.4% done] [ 696/ 28944 kb/s] [eta 00m:14s] Threads: 2: [_FF] [100.0% done] [ 0/ 48531 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] [71.4% done] [ 8540/ 0 kb/s] [eta 00m:06s] Threads: 2: [_VV] [80.0% done] [ 34196/ 0 kb/s] [eta 00m:04s] Threads: 2: [_VV] [89.5% done] [ 33424/ 0 kb/s] [eta 00m:02s] Threads: 2: [_VV] [100.0% done] [ 36736/ 0 kb/s] [eta 00m:00s] Threads: 2: [_VV] [100.0% done] [ 32576/ 0 kb/s] [eta 00m:00s] Threads: 2: [_VV] [100.0% done] [ 35572/ 0 kb/s] [eta 00m:00s] fio: (groupid=0): err= 0: pid=2391 cpu : usr=0.00%, sys=0.00%, ctx=0 IO depths : 1=0.4%, 2=95.5%, 4=1.8%, 8=2.2%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=95.4%, 4=1.3%, 10=0.0%, 20=0.1%, 50=0.2%, 100=0.2% lat (msec): 250=1.7%, 500=0.0%, 750=0.0%, 1000=0.1%, >=2000=0.3% fio: (groupid=0): err= 0: pid=2392 read : io=100MiB, bw=4,989KiB/s, runt= 21017msec clat (msec): min= 0, max= 254, avg=28.60, stdev=44.38 bw (KiB/s) : min= 16, max=22773, per=149.07%, avg=15195.17, stdev=6135.50 write: io=100MiB, bw=7,137KiB/s, runt= 14692msec slat (msec): min= 0, max= 0, avg= 0.00, stdev= 0.00 clat (msec): min= 0, max= 10, avg= 0.24, stdev= 0.60 bw (KiB/s) : min= 0, max=133644, per=323.78%, avg=66822.00, stdev=94500.58 cpu : usr=4.21%, sys=2.63%, ctx=5746 IO depths : 1=1.3%, 2=56.6%, 4=31.6%, 8=10.5%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=51.1%, 4=0.4%, 10=21.8%, 20=14.7%, 50=4.1%, 100=0.7% lat (msec): 250=7.0%, 500=0.1%, 750=0.0%, 1000=0.0%, >=2000=0.0% fio: (groupid=0): err= 0: pid=2393 read : io=100MiB, bw=4,994KiB/s, runt= 20995msec slat (msec): min= 0, max= 0, avg= 0.00, stdev= 0.00 clat (msec): min= 0, max= 5375, avg=65.32, stdev=341.67 bw (KiB/s) : min= 9, max=24158, per=88.71%, avg=9042.45, stdev=8913.22 write: io=96,152KiB, bw=6,694KiB/s, runt= 14708msec slat (msec): min= 0, max= 0, avg= 0.00, stdev= 0.00 clat (msec): min= 0, max= 719, avg= 1.99, stdev=22.92 bw (KiB/s) : min= 0, max=122675, per=202.34%, avg=41758.67, stdev=70087.67 cpu : usr=4.06%, sys=2.23%, ctx=6132 IO depths : 1=1.4%, 2=55.3%, 4=30.8%, 8=12.5%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=47.8%, 4=1.0%, 10=20.5%, 20=16.1%, 50=4.6%, 100=1.3% lat (msec): 250=7.7%, 500=0.2%, 750=0.0%, 1000=0.0%, >=2000=0.1% Run status group 0 (all jobs): READ: io=204MiB, aggrb=10,193KiB/s, minb=0KiB/s, maxb=4,994KiB/s, mint=20995msec, maxt=21017msec WRITE: io=289MiB, aggrb=20,638KiB/s, minb=0KiB/s, maxb=7,137KiB/s, mint=20995msec, maxt=21017msec Disk stats (read/write): sda: ios=2125/2851, merge=723/71076, ticks=47464/1856744, in_queue=1905948, util=97.56% 2.57user 1.33system 0:21.40elapsed 18%CPU (0avgtext+0avgdata 0maxresident)k 0inputs+0outputs (0major+2479minor)pagefaults 0swaps