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: [FmF] [60.0% done] [ 1724/ 21104 kb/s] [eta 00m:02s] Threads: 3: [FmF] [57.1% done] [ 1236/ 0 kb/s] [eta 00m:03s] Threads: 3: [FFF] [100.0% done] [ 216/ 16724 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] 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: [VVV] [70.0% done] [ 7508/ 0 kb/s] [eta 00m:06s] Threads: 3: [VVV] [71.4% done] [ 25852/ 0 kb/s] [eta 00m:06s] Threads: 3: [VVV] [76.2% done] [ 30164/ 0 kb/s] [eta 00m:05s] Threads: 3: [VVV] [81.0% done] [ 25200/ 0 kb/s] [eta 00m:04s] Threads: 3: [VVV] [90.0% done] [ 36876/ 0 kb/s] [eta 00m:02s] Threads: 3: [VVV] [95.0% done] [ 36580/ 0 kb/s] [eta 00m:01s] Threads: 3: [VVV] [100.0% done] [ 34212/ 0 kb/s] [eta 00m:00s] Threads: 3: [VVV] [100.0% done] [ 32508/ 0 kb/s] [eta 00m:00s] Threads: 3: [VVV] [100.0% done] [ 31188/ 0 kb/s] [eta 00m:00s] fio: (groupid=0): err= 0: pid=11450 read : io=100MiB, bw=4,473KiB/s, runt= 23441msec slat (msec): min= 0, max= 0, avg= 0.00, stdev= 0.00 clat (msec): min= 0, max= 735, avg=47.59, stdev=88.50 bw (KiB/s) : min= 6, max=15164, per=68.13%, avg=9142.05, stdev=4442.83 write: io=92,944KiB, bw=6,900KiB/s, runt= 13792msec slat (msec): min= 0, max= 0, avg= 0.00, stdev= 0.00 clat (msec): min= 0, max= 182, avg= 0.53, stdev= 6.97 bw (KiB/s) : min= 0, max=136896, per=319.24%, avg=68448.00, stdev=96800.09 cpu : usr=3.12%, sys=1.42%, ctx=5274 IO depths : 1=1.8%, 2=56.9%, 4=30.1%, 8=11.2%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=51.0%, 4=0.4%, 10=22.3%, 20=11.5%, 50=3.9%, 100=1.6% lat (msec): 250=7.0%, 500=2.0%, 750=0.2%, 1000=0.0%, >=2000=0.0% fio: (groupid=0): err= 0: pid=11451 read : io=100MiB, bw=4,489KiB/s, runt= 23357msec slat (msec): min= 0, max= 0, avg= 0.00, stdev= 0.00 clat (msec): min= 0, max= 663, avg=61.37, stdev=105.59 bw (KiB/s) : min= 5, max=20897, per=51.22%, avg=6872.68, stdev=6145.71 write: io=93,784KiB, bw=6,955KiB/s, runt= 13808msec slat (msec): min= 0, max= 0, avg= 0.00, stdev= 0.00 clat (msec): min= 0, max= 335, avg= 1.71, stdev=16.38 bw (KiB/s) : min= 0, max=19843, per=53.64%, avg=11501.67, stdev=10292.08 cpu : usr=3.27%, sys=1.95%, ctx=5266 IO depths : 1=1.7%, 2=53.3%, 4=30.2%, 8=14.9%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=47.2%, 4=1.1%, 10=19.0%, 20=12.8%, 50=6.3%, 100=2.6% lat (msec): 250=6.8%, 500=3.4%, 750=0.7%, 1000=0.0%, >=2000=0.0% fio: (groupid=0): err= 0: pid=11452 read : io=100MiB, bw=4,545KiB/s, runt= 23069msec clat (msec): min= 0, max= 599, avg=42.90, stdev=85.10 bw (KiB/s) : min= 11, max=22568, per=81.90%, avg=10989.65, stdev=7322.14 write: io=100MiB, bw=7,600KiB/s, runt= 13796msec slat (msec): min= 0, max= 0, avg= 0.00, stdev= 0.00 clat (msec): min= 0, max= 3, avg= 0.19, stdev= 0.44 bw (KiB/s) : min= 0, max=127688, per=297.77%, avg=63844.00, stdev=90289.05 cpu : usr=3.61%, sys=1.61%, ctx=5179 IO depths : 1=1.4%, 2=57.3%, 4=31.3%, 8=10.0%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=51.2%, 4=0.6%, 10=21.9%, 20=14.0%, 50=4.5%, 100=0.8% lat (msec): 250=4.5%, 500=2.4%, 750=0.0%, 1000=0.0%, >=2000=0.0% Run status group 0 (all jobs): READ: io=300MiB, aggrb=13,419KiB/s, minb=4,473KiB/s, maxb=4,545KiB/s, mint=23069msec, maxt=23441msec WRITE: io=282MiB, aggrb=21,441KiB/s, minb=6,900KiB/s, maxb=7,600KiB/s, mint=23069msec, maxt=23441msec Disk stats (read/write): sda: ios=3212/1979, merge=1026/70250, ticks=75224/1904156, in_queue=1983296, util=98.99% 2.37user 1.21system 0:23.87elapsed 15%CPU (0avgtext+0avgdata 0maxresident)k 0inputs+0outputs (0major+2465minor)pagefaults 0swaps