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: [Fmm] [6.0% done] [ 2913/ 18040 kb/s] [eta 00m:47s] Threads: 3: [Fmm] [7.0% done] [ 2563/ 5053 kb/s] [eta 00m:53s] Threads: 3: [Fmm] [8.3% done] [ 3524/ 0 kb/s] [eta 00m:55s] Threads: 3: [Fmm] [12.2% done] [ 3339/ 3749 kb/s] [eta 00m:43s] Threads: 3: [Fmm] [25.0% done] [ 1893/ 83446 kb/s] [eta 00m:21s] Threads: 3: [Fmm] [29.6% done] [ 2744/ 7572 kb/s] [eta 00m:19s] fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed. fio: pid=5103, got signal=6 Threads: 2: [F_m] [31.0% done] [ 1341/ 0 kb/s] [eta 00m:20s] Threads: 2: [F_m] [31.2% done] [ 959/ 0 kb/s] [eta 00m:22s] Threads: 2: [F_m] [40.7% done] [ 1373/ 12613 kb/s] [eta 00m:16s] Threads: 2: [F_m] [41.4% done] [ 944/ 0 kb/s] [eta 00m:17s] Threads: 2: [F_m] [43.3% done] [ 3240/ 508 kb/s] [eta 00m:17s] Threads: 2: [F_F] [100.0% done] [ 112/ 36192 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] [67.9% done] [ 0/ 0 kb/s] [eta 00m:09s] Threads: 2: [V_V] [74.1% done] [ 23204/ 0 kb/s] [eta 00m:07s] Threads: 2: [V_V] [84.0% done] [ 35017/ 0 kb/s] [eta 00m:04s] Threads: 2: [V_V] [95.7% done] [ 28579/ 0 kb/s] [eta 00m:01s] Threads: 2: [V_V] [100.0% done] [ 33342/ 0 kb/s] [eta 00m:00s] Threads: 2: [V_V] [100.0% done] [ 31631/ 0 kb/s] [eta 00m:00s] Threads: 1: [__V] [100.0% done] [ 26984/ 0 kb/s] [eta 00m:00s] fio: (groupid=0): err= 0: pid=5102 read : io=100MiB, bw=4,109KiB/s, runt= 25517msec clat (msec): min= 0, max= 370, avg=26.63, stdev=44.93 bw (KiB/s) : min= 0, max=22570, per=191.02%, avg=16459.82, stdev=6744.33 write: io=100MiB, bw=5,368KiB/s, runt= 19532msec slat (msec): min= 0, max= 0, avg= 0.00, stdev= 0.00 clat (msec): min= 0, max= 9, avg= 0.24, stdev= 0.66 bw (KiB/s) : min= 0, max=126501, per=445.90%, avg=63250.50, stdev=89449.71 cpu : usr=3.21%, sys=1.77%, ctx=5554 IO depths : 1=2.3%, 2=58.7%, 4=30.5%, 8=8.6%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=51.5%, 4=1.2%, 10=17.2%, 20=18.9%, 50=4.4%, 100=1.1% lat (msec): 250=5.2%, 500=0.4%, 750=0.0%, 1000=0.0%, >=2000=0.0% fio: (groupid=0): err= 0: pid=5103 cpu : usr=0.00%, sys=0.00%, ctx=0 IO depths : 1=0.4%, 2=85.5%, 4=4.8%, 8=9.3%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=86.0%, 4=0.2%, 10=0.2%, 20=0.3%, 50=3.3%, 100=1.5% lat (msec): 250=2.3%, 500=2.0%, 750=3.6%, 1000=0.3%, >=2000=0.0% fio: (groupid=0): err= 0: pid=5104 read : io=100MiB, bw=4,050KiB/s, runt= 25889msec slat (msec): min= 0, max= 0, avg= 0.00, stdev= 0.00 clat (msec): min= 0, max= 990, avg=82.37, stdev=158.60 bw (KiB/s) : min= 38, max=18306, per=60.00%, avg=5170.56, stdev=6055.50 write: io=79,136KiB, bw=4,144KiB/s, runt= 19552msec slat (msec): min= 0, max= 0, avg= 0.00, stdev= 0.00 clat (msec): min= 0, max= 546, avg= 8.80, stdev=54.01 bw (KiB/s) : min= 0, max=16288, per=31.42%, avg=4457.29, stdev=5874.04 cpu : usr=2.39%, sys=1.27%, ctx=5800 IO depths : 1=1.8%, 2=51.9%, 4=29.7%, 8=16.5%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=46.3%, 4=1.0%, 10=10.4%, 20=21.2%, 50=5.3%, 100=1.9% lat (msec): 250=7.4%, 500=3.3%, 750=2.9%, 1000=0.2%, >=2000=0.0% Run status group 0 (all jobs): READ: io=213MiB, aggrb=8,617KiB/s, minb=0KiB/s, maxb=4,109KiB/s, mint=25889msec, maxt=25889msec WRITE: io=265MiB, aggrb=14,185KiB/s, minb=0KiB/s, maxb=5,368KiB/s, mint=25889msec, maxt=25889msec Disk stats (read/write): sda: ios=2571/3034, merge=738/64504, ticks=69976/2450700, in_queue=2522744, util=98.82% 2.18user 1.01system 0:26.34elapsed 12%CPU (0avgtext+0avgdata 0maxresident)k 0inputs+0outputs (0major+2491minor)pagefaults 0swaps