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] [10.7% done] [ 12256/ 7116 kb/s] [eta 00m:25s] Threads: 3: [mmm] [14.8% done] [ 16128/ 4536 kb/s] [eta 00m:23s] Threads: 3: [mmm] [18.5% done] [ 11632/ 6748 kb/s] [eta 00m:22s] Threads: 3: [mmm] [23.1% done] [ 9448/ 9312 kb/s] [eta 00m:20s] Threads: 3: [mmm] [25.9% done] [ 11016/ 4516 kb/s] [eta 00m:20s] Threads: 3: [mmm] [29.6% done] [ 11060/ 4504 kb/s] [eta 00m:19s] Threads: 3: [mmm] [33.3% done] [ 6040/ 7680 kb/s] [eta 00m:18s] Threads: 3: [mmm] [37.0% done] [ 12036/ 3512 kb/s] [eta 00m:17s] Threads: 3: [mmm] [39.3% done] [ 7539/ 5445 kb/s] [eta 00m:17s] Threads: 3: [mmm] [42.9% done] [ 13012/ 1004 kb/s] [eta 00m:16s] Threads: 3: [mmm] [46.4% done] [ 6916/ 6936 kb/s] [eta 00m:15s] Threads: 3: [mmm] [50.0% done] [ 9912/ 4000 kb/s] [eta 00m:14s] Threads: 3: [mmm] [53.6% done] [ 10648/ 2308 kb/s] [eta 00m:13s] Threads: 3: [mmm] [55.2% done] [ 7704/ 3628 kb/s] [eta 00m:13s] Threads: 3: [mmm] [56.7% done] [ 6512/ 4100 kb/s] [eta 00m:13s] Threads: 3: [mmm] [60.0% done] [ 6972/ 4344 kb/s] [eta 00m:12s] Threads: 3: [mmm] [61.3% done] [ 4400/ 4732 kb/s] [eta 00m:12s] Threads: 3: [mVm] [62.5% done] [ 4868/ 4088 kb/s] [eta 00m:12s] Threads: 3: [mVm] [63.6% done] [ 16068/ 0 kb/s] [eta 00m:12s] Threads: 3: [mVm] [64.7% done] [ 13840/ 992 kb/s] [eta 00m:12s] Threads: 3: [mVm] [65.7% done] [ 11608/ 1216 kb/s] [eta 00m:12s] Threads: 2: [V_V] [68.6% done] [ 9368/ 2380 kb/s] [eta 00m:11s] Threads: 2: [V_V] [73.5% done] [ 18644/ 0 kb/s] [eta 00m:09s] Threads: 2: [V_V] [78.8% done] [ 18176/ 0 kb/s] [eta 00m:07s] Threads: 2: [V_V] [87.1% done] [ 20400/ 0 kb/s] [eta 00m:04s] fio: (groupid=0): err= 0: pid=18296 read : io=100MiB, bw=3,755KiB/s, runt= 27920msec slat (msec): min= 0, max= 4010, avg=880.18, stdev=1247.65 clat (msec): min= 0, max= 470, avg=80.36, stdev=74.95 bw (KiB/s) : min= 43, max=17432, per=40.83%, avg=4528.33, stdev=3867.98 write: io=38,020KiB, bw=1,624KiB/s, runt= 23962msec slat (msec): min= 0, max= 2, avg= 0.04, stdev= 0.22 clat (msec): min= 0, max= 917, avg=104.72, stdev=122.08 bw (KiB/s) : min= 0, max=13948, per=44.79%, avg=2218.69, stdev=2659.29 cpu : usr=3.52%, sys=0.20%, ctx=1933 IO depths : 1=0.1%, 2=0.2%, 4=15.2%, 8=84.4%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=2.4%, 4=1.1%, 10=7.0%, 20=14.1%, 50=21.3%, 100=18.3% lat (msec): 250=30.5%, 500=4.6%, 750=0.4%, 1000=0.2%, >=2000=0.0% fio: (groupid=0): err= 0: pid=18297 read : io=100MiB, bw=4,455KiB/s, runt= 23537msec slat (msec): min= 0, max= 3247, avg=607.10, stdev=985.18 clat (msec): min= 1, max= 463, avg=75.92, stdev=60.78 bw (KiB/s) : min= 74, max=14213, per=44.64%, avg=4951.73, stdev=3603.78 write: io=36,324KiB, bw=1,830KiB/s, runt= 20324msec slat (msec): min= 0, max= 12, avg= 0.14, stdev= 0.99 clat (msec): min= 0, max= 832, avg=106.96, stdev=121.31 bw (KiB/s) : min= 0, max= 7475, per=56.72%, avg=2810.08, stdev=2428.88 cpu : usr=3.59%, sys=0.34%, ctx=1814 IO depths : 1=0.1%, 2=0.3%, 4=12.8%, 8=86.8%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=1.3%, 4=0.7%, 10=3.1%, 20=10.6%, 50=24.9%, 100=28.3% lat (msec): 250=27.9%, 500=2.6%, 750=0.2%, 1000=0.3%, >=2000=0.0% fio: (groupid=0): err= 0: pid=18298 read : io=100MiB, bw=3,697KiB/s, runt= 28358msec slat (msec): min= 0, max= 5603, avg=1387.19, stdev=2006.51 clat (msec): min= 0, max= 920, avg=87.20, stdev=84.85 bw (KiB/s) : min= 12, max=19163, per=38.53%, avg=4273.33, stdev=3835.29 write: io=41,592KiB, bw=1,874KiB/s, runt= 22726msec slat (msec): min= 0, max= 5, avg= 0.10, stdev= 0.47 clat (msec): min= 0, max= 845, avg=125.96, stdev=118.66 bw (KiB/s) : min= 0, max= 7093, per=53.21%, avg=2636.26, stdev=2086.00 cpu : usr=3.37%, sys=0.25%, ctx=1793 IO depths : 1=0.1%, 2=0.3%, 4=13.6%, 8=85.9%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=0.4%, 4=0.2%, 10=3.3%, 20=10.7%, 50=22.9%, 100=25.1% lat (msec): 250=31.8%, 500=4.5%, 750=0.7%, 1000=0.3%, >=2000=0.0% Run status group 0 (all jobs): READ: io=300MiB, aggrb=11,092KiB/s, minb=3,697KiB/s, maxb=4,455KiB/s, mint=23537msec, maxt=28358msec WRITE: io=113MiB, aggrb=4,954KiB/s, minb=1,624KiB/s, maxb=1,874KiB/s, mint=23537msec, maxt=28358msec Disk stats (read/write): sda: ios=5026/2073, merge=1681/532, ticks=428916/255156, in_queue=684068, util=99.53% 2.81user 0.27system 0:28.60elapsed 10%CPU (0avgtext+0avgdata 0maxresident)k 0inputs+0outputs (0major+2396minor)pagefaults 0swaps