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] [9.7% done] [ 11864/ 6660 kb/s] [eta 00m:28s] Threads: 3: [mmm] [14.3% done] [ 19848/ 1076 kb/s] [eta 00m:24s] Threads: 3: [mmm] [17.9% done] [ 14996/ 2796 kb/s] [eta 00m:23s] Threads: 3: [mmm] [22.2% done] [ 12436/ 5540 kb/s] [eta 00m:21s] Threads: 3: [mmm] [25.9% done] [ 15088/ 2932 kb/s] [eta 00m:20s] Threads: 3: [mmm] [28.6% done] [ 8056/ 8300 kb/s] [eta 00m:20s] Threads: 3: [mmm] [33.3% done] [ 7152/ 8624 kb/s] [eta 00m:18s] Threads: 3: [mmm] [34.5% done] [ 7008/ 7364 kb/s] [eta 00m:19s] Threads: 3: [mmm] [39.3% done] [ 9804/ 6076 kb/s] [eta 00m:17s] Threads: 3: [mmm] [42.9% done] [ 12648/ 2020 kb/s] [eta 00m:16s] Threads: 3: [mmm] [46.4% done] [ 3732/ 9396 kb/s] [eta 00m:15s] Threads: 3: [mmm] [48.3% done] [ 9276/ 3920 kb/s] [eta 00m:15s] Threads: 3: [mmm] [51.7% done] [ 11204/ 884 kb/s] [eta 00m:14s] Threads: 3: [mmm] [55.2% done] [ 4380/ 7080 kb/s] [eta 00m:13s] Threads: 3: [mmm] [56.7% done] [ 5988/ 4456 kb/s] [eta 00m:13s] Threads: 3: [mmm] [58.1% done] [ 6988/ 1588 kb/s] [eta 00m:13s] Threads: 3: [mmm] [61.3% done] [ 1972/ 7204 kb/s] [eta 00m:12s] Threads: 3: [mmm] [62.5% done] [ 5492/ 2308 kb/s] [eta 00m:12s] Threads: 3: [mmm] [65.6% done] [ 5164/ 2644 kb/s] [eta 00m:11s] Threads: 3: [mVV] [66.7% done] [ 5768/ 3192 kb/s] [eta 00m:11s] Threads: 3: [VVV] [69.7% done] [ 15996/ 672 kb/s] [eta 00m:10s] Threads: 3: [VVV] [72.7% done] [ 12868/ 0 kb/s] [eta 00m:09s] Threads: 3: [VVV] [75.8% done] [ 16240/ 0 kb/s] [eta 00m:08s] Threads: 3: [VVV] [78.8% done] [ 15988/ 0 kb/s] [eta 00m:07s] Threads: 3: [VVV] [84.4% done] [ 16704/ 0 kb/s] [eta 00m:05s] Threads: 2: [V_V] [90.3% done] [ 15312/ 0 kb/s] [eta 00m:03s] fio: (groupid=0): err= 0: pid=14566 read : io=100MiB, bw=3,558KiB/s, runt= 29470msec slat (msec): min= 0, max= 7059, avg=2494.57, stdev=2784.43 clat (msec): min= 0, max= 751, avg=88.56, stdev=118.68 bw (KiB/s) : min= 5, max=13245, per=38.13%, avg=4070.05, stdev=2926.40 write: io=48,020KiB, bw=2,169KiB/s, runt= 22661msec slat (msec): min= 0, max= 8, avg= 0.11, stdev= 0.60 clat (msec): min= 0, max= 1232, avg=104.64, stdev=155.93 bw (KiB/s) : min= 0, max= 8741, per=54.76%, avg=2840.39, stdev=2491.38 cpu : usr=3.20%, sys=0.22%, ctx=1648 IO depths : 1=0.1%, 2=0.8%, 4=24.9%, 8=74.2%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=3.2%, 4=1.1%, 10=7.8%, 20=21.5%, 50=33.1%, 100=5.7% lat (msec): 250=11.5%, 500=14.4%, 750=1.4%, 1000=0.2%, >=2000=0.1% fio: (groupid=0): err= 0: pid=14567 read : io=100MiB, bw=3,761KiB/s, runt= 27876msec slat (msec): min= 0, max= 5832, avg=846.82, stdev=1591.27 clat (msec): min= 0, max= 698, avg=104.81, stdev=119.56 bw (KiB/s) : min= 84, max= 9506, per=38.58%, avg=4117.56, stdev=2705.83 write: io=29,632KiB, bw=1,392KiB/s, runt= 21788msec slat (msec): min= 0, max= 7, avg= 0.14, stdev= 0.72 clat (msec): min= 0, max= 980, avg=114.11, stdev=148.41 bw (KiB/s) : min= 0, max= 9729, per=50.36%, avg=2612.26, stdev=2812.81 cpu : usr=3.21%, sys=0.22%, ctx=1686 IO depths : 1=0.2%, 2=0.4%, 4=12.3%, 8=87.1%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=1.1%, 4=1.0%, 10=6.1%, 20=15.3%, 50=33.5%, 100=9.4% lat (msec): 250=15.0%, 500=17.3%, 750=1.1%, 1000=0.0%, >=2000=0.0% fio: (groupid=0): err= 0: pid=14568 read : io=100MiB, bw=3,636KiB/s, runt= 28832msec slat (msec): min= 0, max= 7556, avg=1784.59, stdev=2504.17 clat (msec): min= 3, max= 602, avg=88.76, stdev=98.73 bw (KiB/s) : min= 7, max=12288, per=41.32%, avg=4411.00, stdev=2849.87 write: io=37,156KiB, bw=1,778KiB/s, runt= 21396msec slat (msec): min= 0, max= 9, avg= 0.06, stdev= 0.50 clat (msec): min= 0, max= 1052, avg=104.46, stdev=137.34 bw (KiB/s) : min= 0, max= 7664, per=53.32%, avg=2765.96, stdev=2393.01 cpu : usr=3.29%, sys=0.25%, ctx=1850 IO depths : 1=0.1%, 2=0.3%, 4=17.0%, 8=82.6%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=2.8%, 4=0.9%, 10=6.0%, 20=17.5%, 50=33.1%, 100=8.0% lat (msec): 250=17.9%, 500=13.1%, 750=0.4%, 1000=0.1%, >=2000=0.0% Run status group 0 (all jobs): READ: io=300MiB, aggrb=10,674KiB/s, minb=3,558KiB/s, maxb=3,761KiB/s, mint=27876msec, maxt=29470msec WRITE: io=112MiB, aggrb=5,187KiB/s, minb=1,392KiB/s, maxb=2,169KiB/s, mint=27876msec, maxt=29470msec Disk stats (read/write): sda: ios=4608/2090, merge=1842/450, ticks=497520/230376, in_queue=727896, util=99.44% 2.85user 0.29system 0:29.80elapsed 10%CPU (0avgtext+0avgdata 0maxresident)k 0inputs+0outputs (0major+2408minor)pagefaults 0swaps