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: [mmF] [33.3% done] [ 8571/ 97092 kb/s] [eta 00m:06s] Threads: 3: [mmF] [36.4% done] [ 5882/ 39889 kb/s] [eta 00m:07s] fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed. fio: pid=10177, got signal=6 Threads: 2: [m_F] [38.5% done] [ 5433/ 11621 kb/s] [eta 00m:08s] Threads: 2: [m_F] [40.0% done] [ 2012/ 0 kb/s] [eta 00m:09s] Threads: 2: [m_F] [70.0% done] [ 904/ 39564 kb/s] [eta 00m:03s] Threads: 2: [F_F] [100.0% done] [ 472/ 3116 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: [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] [69.2% done] [ 1905/ 0 kb/s] [eta 00m:08s] Threads: 2: [V_V] [73.1% done] [ 22304/ 0 kb/s] [eta 00m:07s] Threads: 2: [V_V] [83.3% done] [ 32555/ 0 kb/s] [eta 00m:04s] Threads: 2: [V_V] [95.5% done] [ 29536/ 0 kb/s] [eta 00m:01s] Threads: 2: [V_V] [100.0% done] [ 34932/ 0 kb/s] [eta 00m:00s] Threads: 2: [V_V] [100.0% done] [ 31256/ 0 kb/s] [eta 00m:00s] fio: (groupid=0): err= 0: pid=10176 read : io=100MiB, bw=4,330KiB/s, runt= 24213msec slat (msec): min= 0, max= 0, avg= 0.00, stdev= 0.00 clat (msec): min= 0, max= 654, avg=60.65, stdev=95.38 bw (KiB/s) : min= 7, max=22714, per=79.47%, avg=7424.38, stdev=6753.09 write: io=80,896KiB, bw=4,574KiB/s, runt= 18108msec slat (msec): min= 0, max= 0, avg= 0.00, stdev= 0.00 clat (msec): min= 0, max= 255, avg= 1.84, stdev=15.75 bw (KiB/s) : min= 0, max=37170, per=105.59%, avg=15440.00, stdev=19366.86 cpu : usr=2.94%, sys=1.65%, ctx=5402 IO depths : 1=1.5%, 2=51.4%, 4=29.7%, 8=17.3%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=44.0%, 4=2.0%, 10=16.4%, 20=14.2%, 50=7.1%, 100=3.4% lat (msec): 250=9.1%, 500=3.5%, 750=0.2%, 1000=0.0%, >=2000=0.0% fio: (groupid=0): err= 0: pid=10177 cpu : usr=0.00%, sys=0.00%, ctx=0 IO depths : 1=0.4%, 2=83.2%, 4=4.9%, 8=11.6%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=81.2%, 4=3.1%, 10=0.7%, 20=0.1%, 50=1.3%, 100=3.5% lat (msec): 250=8.8%, 500=1.1%, 750=0.0%, 1000=0.0%, >=2000=0.0% fio: (groupid=0): err= 0: pid=10178 read : io=100MiB, bw=4,287KiB/s, runt= 24458msec slat (msec): min= 0, max= 0, avg= 0.00, stdev= 0.00 clat (msec): min= 0, max= 566, avg=35.78, stdev=66.86 bw (KiB/s) : min= 1, max=29500, per=118.66%, avg=11085.12, stdev=9144.89 write: io=93,696KiB, bw=5,300KiB/s, runt= 18100msec slat (msec): min= 0, max= 0, avg= 0.00, stdev= 0.00 clat (msec): min= 0, max= 295, avg= 1.36, stdev=13.81 bw (KiB/s) : min= 0, max=36510, per=165.15%, avg=24147.67, stdev=20914.48 cpu : usr=2.98%, sys=1.47%, ctx=5447 IO depths : 1=1.7%, 2=55.2%, 4=30.8%, 8=12.4%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=49.2%, 4=0.0%, 10=22.0%, 20=14.2%, 50=6.3%, 100=1.0% lat (msec): 250=5.9%, 500=1.2%, 750=0.1%, 1000=0.0%, >=2000=0.0% Run status group 0 (all jobs): READ: io=218MiB, aggrb=9,342KiB/s, minb=0KiB/s, maxb=4,330KiB/s, mint=24458msec, maxt=24458msec WRITE: io=253MiB, aggrb=14,622KiB/s, minb=0KiB/s, maxb=5,300KiB/s, mint=24458msec, maxt=24458msec Disk stats (read/write): sda: ios=2892/2775, merge=949/61716, ticks=46396/2123164, in_queue=2173120, util=99.01% 2.24user 1.00system 0:24.79elapsed 13%CPU (0avgtext+0avgdata 0maxresident)k 0inputs+0outputs (0major+2488minor)pagefaults 0swaps