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=9848, got signal=6 Threads: 2: [_mm] [60.0% done] [ 12373/ 96646 kb/s] [eta 00m:02s] Threads: 2: [_FF] [100.0% done] [ 2216/ 21505 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: [_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] [76.5% done] [ 34533/ 0 kb/s] [eta 00m:04s] Threads: 2: [_VV] [93.3% done] [ 56758/ 0 kb/s] [eta 00m:01s] Threads: 2: [_VV] [100.0% done] [ 61167/ 0 kb/s] [eta 00m:00s] fio: (groupid=0): err= 0: pid=9848 cpu : usr=0.00%, sys=0.00%, ctx=0 IO depths : 1=69.0%, 2=24.6%, 4=3.5%, 8=2.9%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=96.3%, 4=0.0%, 10=0.1%, 20=0.1%, 50=0.2%, 100=1.5% lat (msec): 250=1.4%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0% fio: (groupid=0): err= 0: pid=9849 read : io=100MiB, bw=6,845KiB/s, runt= 15315msec slat (msec): min= 0, max= 0, avg= 0.00, stdev= 0.00 clat (msec): min= 0, max= 274, avg=27.12, stdev=42.15 bw (KiB/s) : min= 7, max=31905, per=103.69%, avg=14328.23, stdev=10441.32 write: io=69,284KiB, bw=5,718KiB/s, runt= 12407msec slat (msec): min= 0, max= 0, avg= 0.00, stdev= 0.00 clat (msec): min= 0, max= 195, avg= 0.88, stdev= 9.39 bw (KiB/s) : min= 0, max=34011, per=79.02%, avg=17005.50, stdev=24049.41 cpu : usr=5.93%, sys=4.00%, ctx=7937 IO depths : 1=20.9%, 2=31.7%, 4=28.8%, 8=18.7%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=46.1%, 4=7.7%, 10=20.6%, 20=7.5%, 50=6.1%, 100=7.2% lat (msec): 250=4.2%, 500=0.2%, 750=0.0%, 1000=0.0%, >=2000=0.0% fio: (groupid=0): err= 0: pid=9850 read : io=100MiB, bw=6,898KiB/s, runt= 15201msec slat (msec): min= 0, max= 0, avg= 0.00, stdev= 0.00 clat (msec): min= 0, max= 214, avg=16.54, stdev=33.78 bw (KiB/s) : min= 6, max=42057, per=138.82%, avg=19183.20, stdev=16323.30 write: io=91,044KiB, bw=7,514KiB/s, runt= 12407msec slat (msec): min= 0, max= 0, avg= 0.00, stdev= 0.00 clat (msec): min= 0, max= 37, avg= 0.63, stdev= 1.67 bw (KiB/s) : min= 0, max=58807, per=152.06%, avg=32725.00, stdev=30122.20 cpu : usr=13.42%, sys=5.29%, ctx=11570 IO depths : 1=45.0%, 2=26.9%, 4=18.8%, 8=9.3%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=56.3%, 4=15.6%, 10=15.8%, 20=3.1%, 50=2.8%, 100=2.6% lat (msec): 250=3.7%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0% Run status group 0 (all jobs): READ: io=202MiB, aggrb=13,819KiB/s, minb=0KiB/s, maxb=6,898KiB/s, mint=15201msec, maxt=15315msec WRITE: io=255MiB, aggrb=21,521KiB/s, minb=0KiB/s, maxb=7,514KiB/s, mint=15201msec, maxt=15315msec Disk stats (read/write): cciss!c0d0: ios=4193/3262, merge=796/61853, ticks=26188/1346612, in_queue=1373808, util=97.62% 4.39user 1.82system 0:15.66elapsed 39%CPU (0avgtext+0avgdata 0maxresident)k 510992inputs+521632outputs (0major+2450minor)pagefaults 0swaps