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] [12.5% done] [ 17736/ 3936 kb/s] [eta 00m:21s] Threads: 3: [mmm] [16.7% done] [ 13404/ 6708 kb/s] [eta 00m:20s] Threads: 3: [mmm] [21.7% done] [ 12972/ 4816 kb/s] [eta 00m:18s] Threads: 3: [mmm] [25.0% done] [ 6964/ 8932 kb/s] [eta 00m:18s] Threads: 3: [mmm] [28.0% done] [ 5952/ 9472 kb/s] [eta 00m:18s] Threads: 3: [mmm] [32.0% done] [ 5144/ 10348 kb/s] [eta 00m:17s] Threads: 3: [mmm] [34.6% done] [ 10360/ 4804 kb/s] [eta 00m:17s] Threads: 3: [mmm] [37.0% done] [ 9360/ 5184 kb/s] [eta 00m:17s] Threads: 3: [mmm] [40.7% done] [ 7980/ 8172 kb/s] [eta 00m:16s] Threads: 3: [mmm] [42.9% done] [ 9116/ 4080 kb/s] [eta 00m:16s] Threads: 3: [mmm] [46.4% done] [ 6488/ 8036 kb/s] [eta 00m:15s] Threads: 3: [mmm] [50.0% done] [ 10416/ 2464 kb/s] [eta 00m:14s] Threads: 3: [mmm] [51.7% done] [ 6580/ 5340 kb/s] [eta 00m:14s] Threads: 3: [mmm] [55.2% done] [ 1604/ 8992 kb/s] [eta 00m:13s] Threads: 3: [mmm] [56.7% done] [ 8168/ 2576 kb/s] [eta 00m:13s] Threads: 3: [mmm] [58.1% done] [ 7080/ 3572 kb/s] [eta 00m:13s] Threads: 3: [mmm] [59.4% done] [ 9308/ 1040 kb/s] [eta 00m:13s] Threads: 3: [mmm] [62.5% done] [ 3208/ 6924 kb/s] [eta 00m:12s] Threads: 3: [mmm] [65.6% done] [ 5692/ 2420 kb/s] [eta 00m:11s] Threads: 3: [VVV] [68.8% done] [ 13716/ 0 kb/s] [eta 00m:10s] Threads: 3: [VVV] [74.2% done] [ 20788/ 0 kb/s] [eta 00m:08s] Threads: 3: [VVV] [77.4% done] [ 19904/ 0 kb/s] [eta 00m:07s] Threads: 3: [VVV] [80.6% done] [ 19623/ 0 kb/s] [eta 00m:06s] Threads: 3: [VVV] [83.9% done] [ 18956/ 0 kb/s] [eta 00m:05s] Threads: 2: [_VV] [93.1% done] [ 18000/ 0 kb/s] [eta 00m:02s] fio: (groupid=0): err= 0: pid=14478 read : io=100MiB, bw=3,921KiB/s, runt= 26742msec slat (msec): min= 0, max= 5122, avg=892.46, stdev=1475.22 clat (msec): min= 0, max= 738, avg=95.69, stdev=94.00 bw (KiB/s) : min= 264, max=10138, per=38.22%, avg=4234.40, stdev=2484.68 write: io=35,604KiB, bw=1,686KiB/s, runt= 21624msec slat (msec): min= 0, max= 5, avg= 0.07, stdev= 0.42 clat (msec): min= 0, max= 1050, avg=101.02, stdev=132.85 bw (KiB/s) : min= 0, max=10822, per=49.09%, avg=2913.05, stdev=2829.14 cpu : usr=3.80%, sys=0.37%, ctx=1793 IO depths : 1=0.1%, 2=0.2%, 4=12.6%, 8=87.1%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=1.2%, 4=0.5%, 10=4.7%, 20=12.2%, 50=25.7%, 100=20.0% lat (msec): 250=27.6%, 500=7.0%, 750=0.7%, 1000=0.2%, >=2000=0.0% fio: (groupid=0): err= 0: pid=14479 read : io=100MiB, bw=3,754KiB/s, runt= 27931msec slat (msec): min= 0, max= 8417, avg=2777.23, stdev=3292.87 clat (msec): min= 0, max= 606, avg=84.20, stdev=87.08 bw (KiB/s) : min= 44, max=19744, per=40.69%, avg=4508.80, stdev=3792.50 write: io=44,860KiB, bw=2,309KiB/s, runt= 19891msec slat (msec): min= 0, max= 6, avg= 0.09, stdev= 0.52 clat (msec): min= 0, max= 929, avg=93.59, stdev=111.10 bw (KiB/s) : min= 0, max=10658, per=48.33%, avg=2867.93, stdev=2619.36 cpu : usr=3.44%, sys=0.30%, ctx=1809 IO depths : 1=0.1%, 2=0.4%, 4=16.8%, 8=82.7%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=2.7%, 4=0.9%, 10=4.5%, 20=13.0%, 50=24.2%, 100=23.7% lat (msec): 250=24.8%, 500=5.4%, 750=0.6%, 1000=0.2%, >=2000=0.0% fio: (groupid=0): err= 0: pid=14480 read : io=100MiB, bw=3,693KiB/s, runt= 28391msec slat (msec): min= 0, max= 7124, avg=1589.46, stdev=2311.94 clat (msec): min= 0, max= 882, avg=91.46, stdev=100.28 bw (KiB/s) : min= 73, max=10206, per=37.70%, avg=4177.25, stdev=2828.65 write: io=44,852KiB, bw=2,155KiB/s, runt= 21308msec slat (msec): min= 0, max= 9, avg= 0.16, stdev= 0.75 clat (msec): min= 0, max= 835, avg=116.17, stdev=109.18 bw (KiB/s) : min= 0, max= 7254, per=54.07%, avg=3208.32, stdev=2166.99 cpu : usr=3.52%, sys=0.15%, ctx=1803 IO depths : 1=0.2%, 2=0.3%, 4=14.6%, 8=85.0%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=0.5%, 4=0.6%, 10=3.5%, 20=11.3%, 50=23.2%, 100=25.0% lat (msec): 250=28.4%, 500=6.5%, 750=0.4%, 1000=0.4%, >=2000=0.0% Run status group 0 (all jobs): READ: io=300MiB, aggrb=11,080KiB/s, minb=3,693KiB/s, maxb=3,921KiB/s, mint=26742msec, maxt=28391msec WRITE: io=122MiB, aggrb=5,934KiB/s, minb=1,686KiB/s, maxb=2,309KiB/s, mint=26742msec, maxt=28391msec Disk stats (read/write): sda: ios=4807/2122, merge=1514/530, ticks=455108/256620, in_queue=711732, util=99.48% 3.00user 0.34system 0:28.67elapsed 11%CPU (0avgtext+0avgdata 0maxresident)k 0inputs+0outputs (0major+2393minor)pagefaults 0swaps