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: [mmm] [8.8% done] [ 9922/ 40788 kb/s] [eta 00m:31s] Threads: 3: [mmm] [14.3% done] [ 10199/ 68618 kb/s] [eta 00m:24s] fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed. fio: pid=12789, got signal=6 Threads: 2: [mF_] [15.6% done] [ 5068/ 5356 kb/s] [eta 00m:27s] Threads: 2: [mF_] [16.7% done] [ 1008/ 0 kb/s] [eta 00m:30s] Threads: 2: [mF_] [17.5% done] [ 1384/ 484 kb/s] [eta 00m:33s] Threads: 2: [mF_] [18.6% done] [ 1148/ 0 kb/s] [eta 00m:35s] Threads: 2: [mF_] [19.1% done] [ 1380/ 0 kb/s] [eta 00m:38s] Threads: 2: [mF_] [62.5% done] [ 520/ 63084 kb/s] [eta 00m:06s] Threads: 2: [mF_] [61.1% done] [ 776/ 0 kb/s] [eta 00m:07s] Threads: 2: [mF_] [63.2% done] [ 564/ 0 kb/s] [eta 00m:07s] Threads: 2: [FF_] [100.0% done] [ 156/ 7976 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_] [70.4% done] [ 11956/ 0 kb/s] [eta 00m:08s] Threads: 2: [VV_] [76.9% done] [ 25848/ 0 kb/s] [eta 00m:06s] Threads: 2: [VV_] [87.5% done] [ 31556/ 0 kb/s] [eta 00m:03s] Threads: 2: [VV_] [95.7% done] [ 28736/ 0 kb/s] [eta 00m:01s] Threads: 2: [VV_] [100.0% done] [ 25560/ 0 kb/s] [eta 00m:00s] Threads: 1: [EV_] [100.0% done] [ 27648/ 0 kb/s] [eta 00m:00s] fio: (groupid=0): err= 0: pid=12787 read : io=100MiB, bw=4,260KiB/s, runt= 24605msec slat (msec): min= 0, max= 0, avg= 0.00, stdev= 0.00 clat (msec): min= 0, max= 966, avg=76.60, stdev=145.60 bw (KiB/s) : min= 7, max=17570, per=62.46%, avg=5462.26, stdev=5572.09 write: io=72,264KiB, bw=3,920KiB/s, runt= 18876msec slat (msec): min= 0, max= 0, avg= 0.00, stdev= 0.00 clat (msec): min= 0, max= 758, avg= 6.54, stdev=54.59 bw (KiB/s) : min= 0, max=128696, per=188.16%, avg=25855.20, stdev=57489.96 cpu : usr=2.39%, sys=1.20%, ctx=5711 IO depths : 1=1.3%, 2=51.2%, 4=29.1%, 8=18.4%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=46.0%, 4=0.1%, 10=18.9%, 20=13.3%, 50=5.7%, 100=1.7% lat (msec): 250=8.9%, 500=3.3%, 750=1.3%, 1000=0.7%, >=2000=0.0% fio: (groupid=0): err= 0: pid=12788 read : io=100MiB, bw=4,172KiB/s, runt= 25049msec slat (msec): min= 0, max= 0, avg= 0.00, stdev= 0.00 clat (msec): min= 0, max= 478, avg=44.21, stdev=74.60 bw (KiB/s) : min= 10, max=20813, per=102.83%, avg=8992.47, stdev=6493.98 write: io=88,196KiB, bw=4,785KiB/s, runt= 18872msec slat (msec): min= 0, max= 0, avg= 0.00, stdev= 0.00 clat (msec): min= 0, max= 189, avg= 0.82, stdev= 8.35 bw (KiB/s) : min= 0, max=115458, per=327.88%, avg=45053.67, stdev=61762.69 cpu : usr=3.47%, sys=1.49%, ctx=5655 IO depths : 1=1.4%, 2=52.7%, 4=30.9%, 8=15.0%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=45.9%, 4=1.4%, 10=18.9%, 20=14.7%, 50=8.1%, 100=1.3% lat (msec): 250=7.1%, 500=2.2%, 750=0.0%, 1000=0.0%, >=2000=0.0% fio: (groupid=0): err= 0: pid=12789 cpu : usr=0.00%, sys=0.00%, ctx=0 IO depths : 1=0.3%, 2=87.4%, 4=4.6%, 8=7.6%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=86.9%, 4=1.6%, 10=0.2%, 20=0.7%, 50=2.9%, 100=1.3% lat (msec): 250=4.2%, 500=1.8%, 750=0.0%, 1000=0.0%, >=2000=0.0% Run status group 0 (all jobs): READ: io=209MiB, aggrb=8,745KiB/s, minb=0KiB/s, maxb=4,260KiB/s, mint=0msec, maxt=25049msec WRITE: io=247MiB, aggrb=13,741KiB/s, minb=0KiB/s, maxb=4,785KiB/s, mint=0msec, maxt=25049msec Disk stats (read/write): sda: ios=2934/2382, merge=979/60848, ticks=59548/1999204, in_queue=2059228, util=99.00% 2.44user 0.96system 0:25.41elapsed 13%CPU (0avgtext+0avgdata 0maxresident)k 0inputs+0outputs (0major+2493minor)pagefaults 0swaps