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=524, got signal=6 Threads: 2: [mm_] [20.0% done] [ 16737/ 25579 kb/s] [eta 00m:12s] Threads: 2: [mm_] [26.7% done] [ 17352/ 0 kb/s] [eta 00m:11s] Threads: 2: [mm_] [45.5% done] [ 12153/ 25129 kb/s] [eta 00m:06s] Threads: 2: [mm_] [46.2% done] [ 7321/ 0 kb/s] [eta 00m:07s] Threads: 2: [mm_] [63.6% done] [ 2879/ 37640 kb/s] [eta 00m:04s] Threads: 2: [Fm_] [66.7% done] [ 3725/ 4197 kb/s] [eta 00m:04s] Threads: 2: [FF_] [100.0% done] [ 622/ 5596 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_] [75.0% done] [ 19812/ 0 kb/s] [eta 00m:05s] Threads: 2: [VV_] [88.9% done] [ 43205/ 0 kb/s] [eta 00m:02s] Threads: 2: [VV_] [100.0% done] [ 43933/ 0 kb/s] [eta 00m:00s] fio: (groupid=0): err= 0: pid=522 read : io=100MiB, bw=6,038KiB/s, runt= 17358msec slat (msec): min= 0, max= 0, avg= 0.00, stdev= 0.00 clat (msec): min= 0, max= 351, avg=42.18, stdev=52.83 bw (KiB/s) : min= 0, max=27279, per=75.75%, avg=9223.40, stdev=8529.50 write: io=62,324KiB, bw=4,408KiB/s, runt= 14475msec slat (msec): min= 0, max= 0, avg= 0.00, stdev= 0.00 clat (msec): min= 0, max= 169, avg= 1.96, stdev=12.30 bw (KiB/s) : min= 0, max=23011, per=61.16%, avg=9339.67, stdev=12101.61 cpu : usr=7.54%, sys=3.87%, ctx=9250 IO depths : 1=26.7%, 2=19.5%, 4=27.8%, 8=26.0%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=36.3%, 4=10.0%, 10=16.0%, 20=8.6%, 50=9.7%, 100=8.3% lat (msec): 250=10.5%, 500=0.3%, 750=0.0%, 1000=0.0%, >=2000=0.0% fio: (groupid=0): err= 0: pid=523 read : io=100MiB, bw=6,079KiB/s, runt= 17248msec slat (msec): min= 0, max= 0, avg= 0.00, stdev= 0.00 clat (msec): min= 0, max= 298, avg=47.48, stdev=57.40 bw (KiB/s) : min= 35, max=21107, per=69.92%, avg=8513.24, stdev=6905.23 write: io=52,784KiB, bw=3,734KiB/s, runt= 14475msec slat (msec): min= 0, max= 0, avg= 0.00, stdev= 0.00 clat (msec): min= 0, max= 207, avg= 1.73, stdev=11.72 bw (KiB/s) : min= 0, max=14126, per=52.44%, avg=8007.33, stdev=7249.91 cpu : usr=6.38%, sys=3.57%, ctx=6453 IO depths : 1=0.4%, 2=44.8%, 4=28.0%, 8=26.9%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=37.5%, 4=8.6%, 10=18.5%, 20=8.6%, 50=3.1%, 100=11.3% lat (msec): 250=11.7%, 500=0.6%, 750=0.0%, 1000=0.0%, >=2000=0.0% fio: (groupid=0): err= 0: pid=524 cpu : usr=0.00%, sys=0.00%, ctx=0 IO depths : 1=84.4%, 2=10.9%, 4=1.8%, 8=2.9%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=95.8%, 4=0.5%, 10=0.1%, 20=0.1%, 50=0.7%, 100=1.5% lat (msec): 250=1.2%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0% Run status group 0 (all jobs): READ: io=202MiB, aggrb=12,176KiB/s, minb=0KiB/s, maxb=6,079KiB/s, mint=0msec, maxt=17358msec WRITE: io=211MiB, aggrb=15,270KiB/s, minb=0KiB/s, maxb=4,408KiB/s, mint=0msec, maxt=17358msec Disk stats (read/write): cciss!c0d0: ios=4753/3144, merge=1086/50730, ticks=43128/1443764, in_queue=1486956, util=98.28% 3.67user 1.76system 0:17.68elapsed 30%CPU (0avgtext+0avgdata 0maxresident)k 559168inputs+431760outputs (0major+2447minor)pagefaults 0swaps