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] [ 10404/ 8928 kb/s] [eta 00m:26s] Threads: 3: [mmm] [14.3% done] [ 15772/ 4732 kb/s] [eta 00m:24s] Threads: 3: [mmm] [18.5% done] [ 11652/ 6464 kb/s] [eta 00m:22s] Threads: 3: [mmm] [22.2% done] [ 16132/ 512 kb/s] [eta 00m:21s] Threads: 3: [mmm] [25.9% done] [ 6356/ 7032 kb/s] [eta 00m:20s] Threads: 3: [mmm] [29.6% done] [ 6184/ 10444 kb/s] [eta 00m:19s] Threads: 3: [mmm] [33.3% done] [ 10448/ 3980 kb/s] [eta 00m:18s] Threads: 3: [mmm] [37.0% done] [ 8332/ 7684 kb/s] [eta 00m:17s] Threads: 3: [mmm] [40.7% done] [ 9572/ 5200 kb/s] [eta 00m:16s] Threads: 3: [mmm] [44.4% done] [ 10172/ 4156 kb/s] [eta 00m:15s] Threads: 3: [mmm] [46.4% done] [ 5332/ 7460 kb/s] [eta 00m:15s] Threads: 3: [mmm] [48.3% done] [ 8584/ 3836 kb/s] [eta 00m:15s] Threads: 3: [mmm] [51.7% done] [ 10116/ 2428 kb/s] [eta 00m:14s] Threads: 3: [mmm] [55.2% done] [ 10376/ 1404 kb/s] [eta 00m:13s] Threads: 3: [mmm] [56.7% done] [ 7892/ 2396 kb/s] [eta 00m:13s] Threads: 3: [mmm] [60.0% done] [ 9052/ 1848 kb/s] [eta 00m:12s] Threads: 3: [mmm] [61.3% done] [ 4296/ 4972 kb/s] [eta 00m:12s] Threads: 3: [mmm] [62.5% done] [ 9312/ 1028 kb/s] [eta 00m:12s] Threads: 3: [mmm] [65.6% done] [ 7528/ 1276 kb/s] [eta 00m:11s] Threads: 3: [VVV] [68.8% done] [ 8408/ 0 kb/s] [eta 00m:10s] Threads: 3: [VVV] [71.9% done] [ 19911/ 0 kb/s] [eta 00m:09s] Threads: 3: [VVV] [75.0% done] [ 19000/ 0 kb/s] [eta 00m:08s] Threads: 3: [VVV] [80.6% done] [ 20500/ 0 kb/s] [eta 00m:06s] Threads: 3: [VVV] [83.9% done] [ 18636/ 0 kb/s] [eta 00m:05s] Threads: 1: [V__] [93.1% done] [ 20416/ 0 kb/s] [eta 00m:02s] fio: (groupid=0): err= 0: pid=3689 read : io=100MiB, bw=3,740KiB/s, runt= 28030msec slat (msec): min= 0, max= 5890, avg=1389.64, stdev=2019.58 clat (msec): min= 4, max= 436, avg=88.01, stdev=82.26 bw (KiB/s) : min= 11, max=11799, per=34.57%, avg=3879.85, stdev=2969.06 write: io=51,080KiB, bw=2,361KiB/s, runt= 22145msec slat (msec): min= 0, max= 14, avg= 0.18, stdev= 1.15 clat (msec): min= 0, max= 1084, avg=112.29, stdev=125.77 bw (KiB/s) : min= 0, max=14568, per=64.86%, avg=3356.43, stdev=3565.81 cpu : usr=3.61%, sys=0.20%, ctx=1856 IO depths : 1=0.1%, 2=0.2%, 4=14.7%, 8=85.0%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=2.2%, 4=0.4%, 10=3.7%, 20=11.8%, 50=24.9%, 100=21.9% lat (msec): 250=26.4%, 500=8.0%, 750=0.3%, 1000=0.1%, >=2000=0.0% fio: (groupid=0): err= 0: pid=3690 read : io=100MiB, bw=3,821KiB/s, runt= 27437msec slat (msec): min= 0, max= 6783, avg=1064.45, stdev=1957.42 clat (msec): min= 1, max= 441, avg=89.24, stdev=73.99 bw (KiB/s) : min= 96, max= 8297, per=38.52%, avg=4322.16, stdev=2297.49 write: io=32,840KiB, bw=1,630KiB/s, runt= 20626msec slat (msec): min= 0, max= 11, avg= 0.28, stdev= 1.26 clat (msec): min= 0, max= 992, avg=138.13, stdev=138.63 bw (KiB/s) : min= 0, max= 7301, per=52.38%, avg=2710.64, stdev=2277.44 cpu : usr=3.88%, sys=0.25%, ctx=1743 IO depths : 1=0.1%, 2=0.2%, 4=11.8%, 8=87.8%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=0.3%, 4=0.3%, 10=2.5%, 20=9.1%, 50=22.3%, 100=28.5% lat (msec): 250=29.4%, 500=6.9%, 750=0.2%, 1000=0.3%, >=2000=0.0% fio: (groupid=0): err= 0: pid=3691 read : io=100MiB, bw=3,853KiB/s, runt= 27209msec slat (msec): min= 0, max= 5255, avg=716.53, stdev=1399.80 clat (msec): min= 2, max= 892, avg=92.91, stdev=88.43 bw (KiB/s) : min= 44, max=10379, per=35.47%, avg=3980.56, stdev=2310.41 write: io=28,008KiB, bw=1,302KiB/s, runt= 22024msec slat (msec): min= 0, max= 2, avg= 0.04, stdev= 0.22 clat (msec): min= 1, max= 912, avg=117.75, stdev=128.58 bw (KiB/s) : min= 0, max= 5453, per=38.70%, avg=2002.75, stdev=1870.96 cpu : usr=3.18%, sys=0.21%, ctx=1869 IO depths : 1=0.1%, 2=0.2%, 4=10.0%, 8=89.7%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=0.1%, 4=0.4%, 10=2.7%, 20=9.6%, 50=23.6%, 100=27.5% lat (msec): 250=29.3%, 500=5.6%, 750=0.6%, 1000=0.4%, >=2000=0.0% Run status group 0 (all jobs): READ: io=300MiB, aggrb=11,222KiB/s, minb=3,740KiB/s, maxb=3,853KiB/s, mint=27209msec, maxt=28030msec WRITE: io=109MiB, aggrb=5,175KiB/s, minb=1,302KiB/s, maxb=2,361KiB/s, mint=27209msec, maxt=28030msec Disk stats (read/write): sda: ios=5077/1786, merge=1127/303, ticks=475412/302500, in_queue=777912, util=99.23% 3.00user 0.25system 0:28.39elapsed 11%CPU (0avgtext+0avgdata 0maxresident)k 0inputs+0outputs (0major+2389minor)pagefaults 0swaps