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=9420, got signal=6 Threads: 2: [m_m] [33.3% done] [ 14500/ 82115 kb/s] [eta 00m:06s] Threads: 2: [m_F] [36.4% done] [ 11271/ 21313 kb/s] [eta 00m:07s] Threads: 2: [m_F] [50.0% done] [ 2273/ 15664 kb/s] [eta 00m:05s] Threads: 2: [m_F] [66.7% done] [ 1167/ 22172 kb/s] [eta 00m:03s] Threads: 2: [m_F] [70.0% done] [ 914/ 4575 kb/s] [eta 00m:03s] Threads: 2: [m_F] [66.7% done] [ 1309/ 0 kb/s] [eta 00m:04s] Threads: 2: [F_F] [100.0% done] [ 215/ 866 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_V] [70.0% done] [ 10498/ 0 kb/s] [eta 00m:06s] Threads: 2: [V_V] [93.8% done] [ 59731/ 0 kb/s] [eta 00m:01s] Threads: 2: [V_V] [100.0% done] [ 58848/ 0 kb/s] [eta 00m:00s] fio: (groupid=0): err= 0: pid=9419 read : io=100MiB, bw=6,417KiB/s, runt= 16331msec slat (msec): min= 0, max= 0, avg= 0.00, stdev= 0.00 clat (msec): min= 0, max= 331, avg=44.16, stdev=66.63 bw (KiB/s) : min= 10, max=34127, per=68.99%, avg=9115.40, stdev=10098.31 write: io=64,364KiB, bw=4,791KiB/s, runt= 13755msec slat (msec): min= 0, max= 0, avg= 0.00, stdev= 0.00 clat (msec): min= 0, max= 151, avg= 1.77, stdev=10.84 bw (KiB/s) : min= 0, max=21560, per=51.23%, avg=9349.25, stdev=8973.22 cpu : usr=8.01%, sys=4.04%, ctx=8729 IO depths : 1=28.4%, 2=21.1%, 4=27.7%, 8=22.8%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=39.6%, 4=11.1%, 10=19.0%, 20=7.3%, 50=4.8%, 100=7.8% lat (msec): 250=8.3%, 500=1.6%, 750=0.0%, 1000=0.0%, >=2000=0.0% fio: (groupid=0): err= 0: pid=9420 cpu : usr=0.00%, sys=0.00%, ctx=0 IO depths : 1=0.2%, 2=91.6%, 4=2.9%, 8=5.3%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=77.1%, 4=14.8%, 10=1.6%, 20=0.1%, 50=1.1%, 100=3.1% lat (msec): 250=1.6%, 500=0.5%, 750=0.0%, 1000=0.0%, >=2000=0.0% fio: (groupid=0): err= 0: pid=9421 read : io=100MiB, bw=6,315KiB/s, runt= 16603msec slat (msec): min= 0, max= 0, avg= 0.00, stdev= 0.00 clat (msec): min= 0, max= 347, avg=21.18, stdev=42.45 bw (KiB/s) : min= 1, max=41197, per=117.40%, avg=15511.33, stdev=15693.97 write: io=87,880KiB, bw=6,542KiB/s, runt= 13755msec slat (msec): min= 0, max= 0, avg= 0.00, stdev= 0.00 clat (msec): min= 0, max= 297, avg= 1.85, stdev=14.07 bw (KiB/s) : min= 0, max=62291, per=130.29%, avg=23776.75, stdev=26816.25 cpu : usr=10.17%, sys=4.84%, ctx=6448 IO depths : 1=1.4%, 2=58.6%, 4=27.7%, 8=12.3%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=44.8%, 4=18.7%, 10=23.4%, 20=2.6%, 50=1.4%, 100=4.9% lat (msec): 250=3.7%, 500=0.3%, 750=0.0%, 1000=0.0%, >=2000=0.0% Run status group 0 (all jobs): READ: io=209MiB, aggrb=13,212KiB/s, minb=0KiB/s, maxb=6,417KiB/s, mint=16603msec, maxt=16603msec WRITE: io=239MiB, aggrb=18,249KiB/s, minb=0KiB/s, maxb=6,542KiB/s, mint=16603msec, maxt=16603msec Disk stats (read/write): cciss!c0d0: ios=4488/3501, merge=1028/57695, ticks=37796/1476772, in_queue=1514568, util=97.53% 4.60user 1.88system 0:16.95elapsed 38%CPU (0avgtext+0avgdata 0maxresident)k 545800inputs+490352outputs (0major+2457minor)pagefaults 0swaps