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: [mFm] [30.0% done] [ 1073/ 0 kb/s] [eta 00m:07s] Threads: 3: [mFm] [30.8% done] [ 1808/ 172 kb/s] [eta 00m:09s] Threads: 3: [mFm] [33.3% done] [ 1852/ 3636 kb/s] [eta 00m:10s] Threads: 3: [mFm] [33.3% done] [ 1260/ 0 kb/s] [eta 00m:12s] Threads: 3: [mFm] [35.0% done] [ 2100/ 836 kb/s] [eta 00m:13s] Threads: 3: [FFm] [44.4% done] [ 1180/ 38244 kb/s] [eta 00m:10s] Threads: 3: [FFm] [64.3% done] [ 976/ 28000 kb/s] [eta 00m:05s] Threads: 3: [FFF] [100.0% done] [ 0/ 8368 kb/s] [eta 00m:00s] Threads: 3: [FFF] [100.0% done] [ 0/ 0 kb/s] [eta 00m:00s] Threads: 3: [FFF] [100.0% done] [ 0/ 0 kb/s] [eta 00m:00s] Threads: 3: [FFF] [100.0% done] [ 0/ 0 kb/s] [eta 00m:00s] Threads: 3: [FFF] [100.0% done] [ 0/ 0 kb/s] [eta 00m:00s] Threads: 3: [FFF] [100.0% done] [ 0/ 0 kb/s] [eta 00m:00s] fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed. fio: pid=12257, got signal=6 Threads: 2: [F_F] [100.0% done] [ 0/ 0 kb/s] [eta 00m:00s] Threads: 2: [V_V] [68.0% done] [ 9360/ 0 kb/s] [eta 00m:08s] Threads: 2: [V_V] [78.3% done] [ 22536/ 0 kb/s] [eta 00m:05s] Threads: 2: [V_V] [86.4% done] [ 30536/ 0 kb/s] [eta 00m:03s] Threads: 2: [V_V] [95.2% done] [ 34132/ 0 kb/s] [eta 00m:01s] Threads: 2: [V_V] [100.0% done] [ 35476/ 0 kb/s] [eta 00m:00s] Threads: 2: [V_V] [100.0% done] [ 34540/ 0 kb/s] [eta 00m:00s] fio: (groupid=0): err= 0: pid=12256 read : io=100MiB, bw=4,601KiB/s, runt= 22787msec slat (msec): min= 0, max= 0, avg= 0.00, stdev= 0.00 clat (msec): min= 0, max= 797, avg=51.39, stdev=111.78 bw (KiB/s) : min= 7, max=23356, per=84.38%, avg=7748.70, stdev=8225.34 write: io=92,884KiB, bw=5,644KiB/s, runt= 16852msec slat (msec): min= 0, max= 0, avg= 0.00, stdev= 0.00 clat (msec): min= 0, max= 623, avg= 7.21, stdev=45.01 bw (KiB/s) : min= 0, max=52461, per=72.70%, avg=12337.00, stdev=21290.21 cpu : usr=3.70%, sys=1.72%, ctx=5214 IO depths : 1=2.5%, 2=50.3%, 4=32.9%, 8=14.3%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=42.3%, 4=0.2%, 10=24.2%, 20=17.2%, 50=4.4%, 100=1.1% lat (msec): 250=7.6%, 500=1.6%, 750=1.0%, 1000=0.2%, >=2000=0.0% fio: (groupid=0): err= 0: pid=12257 cpu : usr=0.00%, sys=0.00%, ctx=0 IO depths : 1=0.4%, 2=96.0%, 4=1.7%, 8=1.9%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=93.9%, 4=2.8%, 10=0.4%, 20=0.1%, 50=0.2%, 100=0.3% lat (msec): 250=1.8%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0% fio: (groupid=0): err= 0: pid=12258 read : io=100MiB, bw=4,540KiB/s, runt= 23093msec slat (msec): min= 0, max= 0, avg= 0.00, stdev= 0.00 clat (msec): min= 0, max= 1071, avg=65.06, stdev=143.90 bw (KiB/s) : min= 22, max=19747, per=70.93%, avg=6513.68, stdev=7122.96 write: io=86,328KiB, bw=5,250KiB/s, runt= 16836msec slat (msec): min= 0, max= 0, avg= 0.00, stdev= 0.00 clat (msec): min= 0, max= 503, avg= 5.42, stdev=39.96 bw (KiB/s) : min= 0, max=11930, per=26.81%, avg=4550.40, stdev=5427.51 cpu : usr=2.89%, sys=1.82%, ctx=5398 IO depths : 1=1.4%, 2=52.6%, 4=30.0%, 8=16.1%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=47.6%, 4=0.0%, 10=16.2%, 20=16.2%, 50=6.6%, 100=2.0% lat (msec): 250=7.4%, 500=2.1%, 750=1.0%, 1000=0.7%, >=2000=0.1% Run status group 0 (all jobs): READ: io=202MiB, aggrb=9,183KiB/s, minb=0KiB/s, maxb=4,601KiB/s, mint=23093msec, maxt=23093msec WRITE: io=273MiB, aggrb=16,970KiB/s, minb=0KiB/s, maxb=5,644KiB/s, mint=23093msec, maxt=23093msec Disk stats (read/write): sda: ios=2519/2367, merge=870/67322, ticks=54604/2095320, in_queue=2152344, util=99.02% 2.52user 1.17system 0:23.48elapsed 15%CPU (0avgtext+0avgdata 0maxresident)k 0inputs+0outputs (0major+2489minor)pagefaults 0swaps