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 fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed. fio: pid=7932, got signal=6 Threads: 2 Threads: 2: [m_m] [75.0% done] [ 12361/ 46067 kb/s] [eta 00m:01s] Threads: 2: [F_m] [66.7% done] [ 1531/ 5839 kb/s] [eta 00m:02s] Threads: 2: [F_F] [100.0% done] [ 276/ 7207 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: [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] [68.4% done] [ 15916/ 0 kb/s] [eta 00m:06s] Threads: 2: [V_V] [87.5% done] [ 62981/ 0 kb/s] [eta 00m:02s] Threads: 1: [__V] [100.0% done] [ 55546/ 0 kb/s] [eta 00m:00s] fio: (groupid=0): err= 0: pid=7931 read : io=100MiB, bw=6,958KiB/s, runt= 15070msec slat (msec): min= 0, max= 0, avg= 0.00, stdev= 0.00 clat (msec): min= 0, max= 139, avg=17.95, stdev=29.07 bw (KiB/s) : min= 3, max=59121, per=146.34%, avg=19656.50, stdev=18591.49 write: io=80,908KiB, bw=6,485KiB/s, runt= 12775msec slat (msec): min= 0, max= 0, avg= 0.00, stdev= 0.00 clat (msec): min= 0, max= 63, avg= 0.69, stdev= 2.91 bw (KiB/s) : min= 0, max=101572, per=191.00%, avg=40590.00, stdev=49738.44 cpu : usr=9.13%, sys=5.20%, ctx=6146 IO depths : 1=0.8%, 2=56.3%, 4=28.4%, 8=14.5%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=47.4%, 4=15.7%, 10=22.3%, 20=3.5%, 50=2.0%, 100=7.0% lat (msec): 250=1.9%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0% fio: (groupid=0): err= 0: pid=7932 cpu : usr=0.00%, sys=0.00%, ctx=0 IO depths : 1=0.1%, 2=98.8%, 4=1.1%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=81.5%, 4=16.1%, 10=2.2%, 20=0.0%, 50=0.0%, 100=0.0% lat (msec): 250=0.0%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0% fio: (groupid=0): err= 0: pid=7933 read : io=100MiB, bw=6,716KiB/s, runt= 15612msec slat (msec): min= 0, max= 0, avg= 0.00, stdev= 0.00 clat (msec): min= 0, max= 408, avg=25.79, stdev=48.56 bw (KiB/s) : min= 0, max=59064, per=109.37%, avg=14690.38, stdev=16563.34 write: io=81,872KiB, bw=6,562KiB/s, runt= 12775msec slat (msec): min= 0, max= 0, avg= 0.00, stdev= 0.00 clat (msec): min= 0, max= 231, avg= 1.18, stdev=12.61 bw (KiB/s) : min= 0, max=60375, per=117.48%, avg=24964.67, stdev=31513.79 cpu : usr=9.12%, sys=4.38%, ctx=10516 IO depths : 1=43.1%, 2=17.0%, 4=23.2%, 8=16.7%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=52.7%, 4=8.1%, 10=17.2%, 20=4.7%, 50=6.9%, 100=6.5% lat (msec): 250=3.0%, 500=0.7%, 750=0.0%, 1000=0.0%, >=2000=0.0% Run status group 0 (all jobs): READ: io=200MiB, aggrb=13,432KiB/s, minb=0KiB/s, maxb=6,958KiB/s, mint=15612msec, maxt=15612msec WRITE: io=259MiB, aggrb=21,251KiB/s, minb=0KiB/s, maxb=6,562KiB/s, mint=15612msec, maxt=15612msec Disk stats (read/write): cciss!c0d0: ios=4115/3558, merge=769/62624, ticks=22212/1392984, in_queue=1417684, util=96.69% 4.29user 1.86system 0:15.95elapsed 38%CPU (0avgtext+0avgdata 0maxresident)k 501720inputs+530384outputs (0major+2450minor)pagefaults 0swaps