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] [17.6% done] [ 16542/ 28802 kb/s] [eta 00m:14s] Threads: 3: [Fmm] [22.2% done] [ 13056/ 13178 kb/s] [eta 00m:14s] Threads: 3: [Fmm] [25.0% done] [ 5755/ 21594 kb/s] [eta 00m:15s] Threads: 3: [FFm] [27.3% done] [ 3685/ 11149 kb/s] [eta 00m:16s] Threads: 3: [FFm] [29.2% done] [ 3018/ 0 kb/s] [eta 00m:17s] Threads: 3: [FFF] [100.0% done] [ 97/ 58624 kb/s] [eta 00m:00s] Threads: 3: [FFF] [100.0% done] [ 0/ 0 kb/s] [eta 00m:00s] Threads: 3: [FFF] [100.0% done] [ 0/ 0 kb/s] [eta 00m:00s] Threads: 3: [FFF] [100.0% done] [ 0/ 0 kb/s] [eta 00m:00s] Threads: 3: [FFF] [100.0% done] [ 0/ 0 kb/s] [eta 00m:00s] fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed. fio: pid=3351, got signal=6 Threads: 2: [VV_] [68.4% done] [ 22779/ 0 kb/s] [eta 00m:06s] Threads: 2: [VV_] [93.3% done] [ 66422/ 0 kb/s] [eta 00m:01s] Threads: 2: [VV_] [100.0% done] [ 62041/ 0 kb/s] [eta 00m:00s] fio: (groupid=0): err= 0: pid=3349 read : io=100MiB, bw=6,698KiB/s, runt= 15654msec slat (msec): min= 0, max= 0, avg= 0.00, stdev= 0.00 clat (msec): min= 0, max= 343, avg=17.33, stdev=39.84 bw (KiB/s) : min= 2, max=51342, per=94.45%, avg=15411.64, stdev=16983.71 write: io=95,352KiB, bw=7,710KiB/s, runt= 12663msec slat (msec): min= 0, max= 0, avg= 0.00, stdev= 0.00 clat (msec): min= 0, max= 111, avg= 1.18, stdev= 6.09 bw (KiB/s) : min= 0, max=60671, per=151.14%, avg=28730.80, stdev=30315.94 cpu : usr=13.13%, sys=6.39%, ctx=6309 IO depths : 1=1.7%, 2=62.7%, 4=26.5%, 8=9.0%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=48.5%, 4=20.0%, 10=21.7%, 20=2.6%, 50=0.9%, 100=1.5% lat (msec): 250=4.5%, 500=0.2%, 750=0.0%, 1000=0.0%, >=2000=0.0% fio: (groupid=0): err= 0: pid=3350 read : io=100MiB, bw=6,788KiB/s, runt= 15442msec slat (msec): min= 0, max= 0, avg= 0.00, stdev= 0.00 clat (msec): min= 0, max= 359, avg=29.18, stdev=51.59 bw (KiB/s) : min= 8, max=44392, per=80.43%, avg=13123.80, stdev=15284.17 write: io=82,096KiB, bw=6,636KiB/s, runt= 12667msec slat (msec): min= 0, max= 0, avg= 0.00, stdev= 0.00 clat (msec): min= 0, max= 168, avg= 1.87, stdev=10.67 bw (KiB/s) : min= 0, max=62431, per=121.14%, avg=23028.00, stdev=27765.51 cpu : usr=11.24%, sys=5.34%, ctx=6111 IO depths : 1=0.7%, 2=56.3%, 4=28.0%, 8=15.1%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=44.5%, 4=16.6%, 10=21.9%, 20=3.6%, 50=0.9%, 100=4.8% lat (msec): 250=7.1%, 500=0.1%, 750=0.0%, 1000=0.0%, >=2000=0.0% fio: (groupid=0): err= 0: pid=3351 cpu : usr=0.00%, sys=0.00%, ctx=0 IO depths : 1=0.4%, 2=71.9%, 4=4.8%, 8=22.9%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=64.4%, 4=8.3%, 10=0.9%, 20=0.1%, 50=0.1%, 100=11.6% lat (msec): 250=11.4%, 500=2.8%, 750=0.0%, 1000=0.0%, >=2000=0.0% Run status group 0 (all jobs): READ: io=244MiB, aggrb=16,318KiB/s, minb=0KiB/s, maxb=6,788KiB/s, mint=0msec, maxt=15654msec WRITE: io=230MiB, aggrb=19,010KiB/s, minb=0KiB/s, maxb=7,710KiB/s, mint=0msec, maxt=15654msec Disk stats (read/write): cciss!c0d0: ios=4806/2924, merge=1129/55820, ticks=46296/1384788, in_queue=1431084, util=97.95% 4.88user 2.41system 0:15.95elapsed 45%CPU (0avgtext+0avgdata 0maxresident)k 595472inputs+470344outputs (0major+2451minor)pagefaults 0swaps