fio: (g=0): rw=randrw, bs=4K-256K/4K-256K, ioengine=libaio, iodepth=8 ... fio: (g=0): rw=randrw, bs=4K-256K/4K-256K, ioengine=libaio, iodepth=8 Starting 3 threads Threads: 3 Threads: 3 Threads: 3: [mmm] [10.3% done] [ 4636/ 14208 kb/s] [eta 00m:26s] Threads: 3: [mmm] [14.3% done] [ 14340/ 5632 kb/s] [eta 00m:24s] Threads: 3: [mmm] [16.7% done] [ 7416/ 8724 kb/s] [eta 00m:25s] Threads: 3: [mmm] [20.0% done] [ 5360/ 11240 kb/s] [eta 00m:24s] Threads: 3: [mmm] [24.1% done] [ 12264/ 4596 kb/s] [eta 00m:22s] Threads: 3: [mmm] [27.6% done] [ 7484/ 9336 kb/s] [eta 00m:21s] Threads: 3: [mmm] [31.0% done] [ 11968/ 2260 kb/s] [eta 00m:20s] Threads: 3: [mmm] [33.3% done] [ 13196/ 1984 kb/s] [eta 00m:20s] Threads: 3: [mmm] [36.7% done] [ 7976/ 6544 kb/s] [eta 00m:19s] Threads: 3: [mmm] [40.0% done] [ 10748/ 3592 kb/s] [eta 00m:18s] Threads: 3: [mmm] [43.3% done] [ 7376/ 4508 kb/s] [eta 00m:17s] Threads: 3: [mmm] [46.7% done] [ 6652/ 6216 kb/s] [eta 00m:16s] Threads: 3: [mmm] [50.0% done] [ 3584/ 7476 kb/s] [eta 00m:15s] Threads: 3: [mmm] [51.6% done] [ 8200/ 3692 kb/s] [eta 00m:15s] Threads: 3: [mmm] [54.8% done] [ 3712/ 6384 kb/s] [eta 00m:14s] Threads: 3: [mmm] [56.2% done] [ 3536/ 7312 kb/s] [eta 00m:14s] Threads: 3: [mmm] [59.4% done] [ 5961/ 4043 kb/s] [eta 00m:13s] Threads: 3: [mmm] [60.6% done] [ 7944/ 1400 kb/s] [eta 00m:13s] Threads: 3: [mmm] [65.6% done] [ 4524/ 5928 kb/s] [eta 00m:11s] Threads: 3: [VVV] [68.8% done] [ 9160/ 1320 kb/s] [eta 00m:10s] Threads: 3: [VVV] [71.9% done] [ 21504/ 0 kb/s] [eta 00m:09s] Threads: 3: [VVV] [77.4% done] [ 20796/ 0 kb/s] [eta 00m:07s] Threads: 3: [VVV] [80.6% done] [ 20432/ 0 kb/s] [eta 00m:06s] Threads: 3: [VVV] [83.9% done] [ 19440/ 0 kb/s] [eta 00m:05s] Threads: 2: [V_V] [90.0% done] [ 18724/ 0 kb/s] [eta 00m:03s] Threads: 2: [V_V] [96.6% done] [ 20984/ 0 kb/s] [eta 00m:01s] fio: (groupid=0): err= 0: pid=27636 read : io=100MiB, bw=3,578KiB/s, runt= 29300msec slat (msec): min= 0, max= 7475, avg=2479.09, stdev=2728.47 clat (msec): min= 0, max= 475, avg=70.61, stdev=82.61 bw (KiB/s) : min= 49, max=19822, per=46.54%, avg=4996.97, stdev=4182.77 write: io=61,236KiB, bw=2,869KiB/s, runt= 21856msec slat (msec): min= 0, max= 9, avg= 0.09, stdev= 0.57 clat (msec): min= 0, max= 919, avg=111.94, stdev=144.95 bw (KiB/s) : min= 0, max=10767, per=48.07%, avg=3235.27, stdev=2532.00 cpu : usr=3.51%, sys=0.29%, ctx=1919 IO depths : 1=0.2%, 2=0.7%, 4=20.6%, 8=78.5%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=4.0%, 4=1.0%, 10=7.6%, 20=18.5%, 50=22.0%, 100=16.5% lat (msec): 250=22.7%, 500=6.7%, 750=0.6%, 1000=0.5%, >=2000=0.0% fio: (groupid=0): err= 0: pid=27637 read : io=100MiB, bw=3,854KiB/s, runt= 27204msec slat (msec): min= 0, max= 6654, avg=1515.56, stdev=2234.67 clat (msec): min= 1, max= 713, avg=88.51, stdev=81.56 bw (KiB/s) : min= 30, max=10739, per=40.51%, avg=4349.24, stdev=2873.49 write: io=34,504KiB, bw=1,738KiB/s, runt= 20327msec slat (msec): min= 0, max= 3, avg= 0.04, stdev= 0.23 clat (msec): min= 0, max= 723, avg=102.50, stdev=102.07 bw (KiB/s) : min= 0, max= 9354, per=39.37%, avg=2649.29, stdev=2407.57 cpu : usr=3.28%, sys=0.32%, ctx=1795 IO depths : 1=0.1%, 2=0.2%, 4=13.3%, 8=86.4%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=0.7%, 4=0.3%, 10=4.0%, 20=10.8%, 50=23.8%, 100=27.1% lat (msec): 250=26.4%, 500=6.5%, 750=0.3%, 1000=0.0%, >=2000=0.0% fio: (groupid=0): err= 0: pid=27638 read : io=100MiB, bw=3,645KiB/s, runt= 28763msec slat (msec): min= 0, max= 7891, avg=2051.90, stdev=2792.33 clat (msec): min= 0, max= 543, avg=86.95, stdev=85.67 bw (KiB/s) : min= 15, max=13328, per=39.20%, avg=4208.86, stdev=3170.89 write: io=47,912KiB, bw=2,351KiB/s, runt= 20868msec slat (msec): min= 0, max= 7, avg= 0.10, stdev= 0.56 clat (msec): min= 0, max= 948, avg=114.90, stdev=115.37 bw (KiB/s) : min= 0, max=12622, per=45.47%, avg=3060.25, stdev=2983.54 cpu : usr=3.48%, sys=0.25%, ctx=1858 IO depths : 1=0.1%, 2=0.3%, 4=14.3%, 8=85.2%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=0.7%, 4=0.4%, 10=4.2%, 20=12.5%, 50=23.2%, 100=23.2% lat (msec): 250=28.1%, 500=6.8%, 750=0.4%, 1000=0.1%, >=2000=0.0% Run status group 0 (all jobs): READ: io=300MiB, aggrb=10,736KiB/s, minb=3,578KiB/s, maxb=3,854KiB/s, mint=27204msec, maxt=29300msec WRITE: io=140MiB, aggrb=6,730KiB/s, minb=1,738KiB/s, maxb=2,869KiB/s, mint=27204msec, maxt=29300msec Disk stats (read/write): sda: ios=4823/2453, merge=1677/576, ticks=403296/352424, in_queue=755716, util=99.50% 2.98user 0.34system 0:29.55elapsed 11%CPU (0avgtext+0avgdata 0maxresident)k 0inputs+0outputs (0major+2407minor)pagefaults 0swaps