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] [9.4% done] [ 13579/ 7506 kb/s] [eta 00m:29s] Threads: 3: [mmm] [14.8% done] [ 10031/ 9093 kb/s] [eta 00m:23s] Threads: 3: [mmm] [18.5% done] [ 13201/ 4836 kb/s] [eta 00m:22s] Threads: 3: [mmm] [23.1% done] [ 12020/ 4458 kb/s] [eta 00m:20s] Threads: 3: [mmm] [26.9% done] [ 9714/ 5231 kb/s] [eta 00m:19s] Threads: 3: [mmm] [29.6% done] [ 10562/ 4582 kb/s] [eta 00m:19s] Threads: 3: [mmm] [32.1% done] [ 5928/ 9200 kb/s] [eta 00m:19s] Threads: 3: [mmm] [35.7% done] [ 11472/ 5164 kb/s] [eta 00m:18s] Threads: 3: [mmm] [39.3% done] [ 12012/ 3116 kb/s] [eta 00m:17s] Threads: 3: [mmm] [42.9% done] [ 8160/ 6612 kb/s] [eta 00m:16s] Threads: 3: [mmm] [44.8% done] [ 9752/ 3876 kb/s] [eta 00m:16s] Threads: 3: [mmm] [48.3% done] [ 8700/ 4548 kb/s] [eta 00m:15s] Threads: 3: [mmm] [51.7% done] [ 5172/ 6600 kb/s] [eta 00m:14s] Threads: 3: [mmm] [53.3% done] [ 3040/ 7996 kb/s] [eta 00m:14s] Threads: 3: [mmm] [54.8% done] [ 7472/ 2880 kb/s] [eta 00m:14s] Threads: 3: [mmm] [58.1% done] [ 7708/ 3236 kb/s] [eta 00m:13s] Threads: 3: [mmm] [59.4% done] [ 5788/ 3924 kb/s] [eta 00m:13s] Threads: 3: [mmm] [62.5% done] [ 7960/ 528 kb/s] [eta 00m:12s] Threads: 3: [mmm] [67.7% done] [ 10412/ 456 kb/s] [eta 00m:10s] Threads: 3: [VVV] [71.0% done] [ 16140/ 196 kb/s] [eta 00m:09s] Threads: 3: [VVV] [74.2% done] [ 19520/ 0 kb/s] [eta 00m:08s] Threads: 3: [VVV] [77.4% done] [ 18436/ 0 kb/s] [eta 00m:07s] Threads: 3: [VVV] [83.3% done] [ 19112/ 0 kb/s] [eta 00m:05s] Threads: 3: [VVV] [86.7% done] [ 19028/ 0 kb/s] [eta 00m:04s] fio: (groupid=0): err= 0: pid=31544 read : io=100MiB, bw=3,843KiB/s, runt= 27285msec slat (msec): min= 0, max= 5735, avg=1024.04, stdev=1723.60 clat (msec): min= 2, max= 581, avg=86.03, stdev=87.63 bw (KiB/s) : min= 9, max=12100, per=37.88%, avg=4366.86, stdev=3019.91 write: io=40,988KiB, bw=1,949KiB/s, runt= 21525msec slat (msec): min= 0, max= 4, avg= 0.05, stdev= 0.28 clat (msec): min= 0, max= 996, avg=138.10, stdev=157.69 bw (KiB/s) : min= 0, max= 6465, per=50.42%, avg=2486.35, stdev=2124.17 cpu : usr=3.68%, sys=0.31%, ctx=1729 IO depths : 1=0.1%, 2=0.2%, 4=14.2%, 8=85.5%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=0.3%, 4=0.6%, 10=3.9%, 20=16.3%, 50=22.4%, 100=21.3% lat (msec): 250=27.2%, 500=6.8%, 750=0.6%, 1000=0.6%, >=2000=0.0% fio: (groupid=0): err= 0: pid=31545 read : io=100MiB, bw=3,851KiB/s, runt= 27227msec slat (msec): min= 0, max= 6374, avg=1103.72, stdev=1914.36 clat (msec): min= 3, max= 520, avg=88.65, stdev=76.03 bw (KiB/s) : min= 60, max=10422, per=38.00%, avg=4381.02, stdev=2708.66 write: io=31,772KiB, bw=1,511KiB/s, runt= 21529msec slat (msec): min= 0, max= 12, avg= 0.21, stdev= 1.13 clat (msec): min= 0, max= 832, avg=117.93, stdev=124.50 bw (KiB/s) : min= 0, max= 5351, per=48.07%, avg=2370.33, stdev=1951.28 cpu : usr=3.48%, sys=0.25%, ctx=1880 IO depths : 1=0.1%, 2=0.2%, 4=12.0%, 8=87.7%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=0.5%, 4=0.3%, 10=2.0%, 20=10.0%, 50=23.5%, 100=27.9% lat (msec): 250=29.7%, 500=5.4%, 750=0.2%, 1000=0.4%, >=2000=0.0% fio: (groupid=0): err= 0: pid=31546 read : io=100MiB, bw=3,916KiB/s, runt= 26774msec slat (msec): min= 0, max= 6767, avg=1475.39, stdev=2149.15 clat (msec): min= 2, max= 638, avg=86.45, stdev=76.53 bw (KiB/s) : min= 12, max= 9456, per=39.44%, avg=4546.56, stdev=2582.96 write: io=30,932KiB, bw=1,574KiB/s, runt= 20121msec slat (msec): min= 0, max= 3, avg= 0.04, stdev= 0.24 clat (msec): min= 0, max= 736, avg=106.70, stdev=99.85 bw (KiB/s) : min= 0, max= 6490, per=50.42%, avg=2486.43, stdev=1937.24 cpu : usr=3.45%, sys=0.30%, ctx=1774 IO depths : 1=0.1%, 2=0.2%, 4=13.9%, 8=85.8%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=0.3%, 4=0.4%, 10=3.7%, 20=11.3%, 50=23.4%, 100=26.2% lat (msec): 250=29.2%, 500=4.8%, 750=0.5%, 1000=0.0%, >=2000=0.0% Run status group 0 (all jobs): READ: io=300MiB, aggrb=11,529KiB/s, minb=3,843KiB/s, maxb=3,916KiB/s, mint=26774msec, maxt=27285msec WRITE: io=101MiB, aggrb=4,931KiB/s, minb=1,511KiB/s, maxb=1,949KiB/s, mint=26774msec, maxt=27285msec Disk stats (read/write): sda: ios=4945/1781, merge=1372/403, ticks=445824/233700, in_queue=679524, util=99.46% 2.94user 0.29system 0:27.57elapsed 11%CPU (0avgtext+0avgdata 0maxresident)k 0inputs+0outputs (0major+2386minor)pagefaults 0swaps