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] [10.0% done] [ 14655/ 4974 kb/s] [eta 00m:27s] Threads: 3: [mmm] [15.4% done] [ 19660/ 141 kb/s] [eta 00m:22s] Threads: 3: [mmm] [20.0% done] [ 15584/ 2552 kb/s] [eta 00m:20s] Threads: 3: [mmm] [25.0% done] [ 15580/ 3745 kb/s] [eta 00m:18s] Threads: 3: [mmm] [28.0% done] [ 12937/ 2138 kb/s] [eta 00m:18s] Threads: 3: [mmm] [30.8% done] [ 10531/ 4434 kb/s] [eta 00m:18s] Threads: 3: [mmm] [36.0% done] [ 11043/ 5521 kb/s] [eta 00m:16s] Threads: 3: [mmm] [37.0% done] [ 3229/ 11173 kb/s] [eta 00m:17s] Threads: 3: [mmm] [39.3% done] [ 9448/ 4871 kb/s] [eta 00m:17s] Threads: 3: [mmm] [42.9% done] [ 14619/ 157 kb/s] [eta 00m:16s] Threads: 3: [mmm] [44.8% done] [ 11181/ 1705 kb/s] [eta 00m:16s] Threads: 3: [mmm] [48.3% done] [ 11606/ 1977 kb/s] [eta 00m:15s] Threads: 3: [mmm] [51.7% done] [ 5005/ 6305 kb/s] [eta 00m:14s] Threads: 3: [mmm] [55.2% done] [ 11779/ 220 kb/s] [eta 00m:13s] Threads: 3: [mmm] [56.7% done] [ 7333/ 1996 kb/s] [eta 00m:13s] Threads: 3: [mmm] [58.1% done] [ 3871/ 4812 kb/s] [eta 00m:13s] Threads: 3: [mmm] [61.3% done] [ 6163/ 2481 kb/s] [eta 00m:12s] Threads: 3: [mmm] [64.5% done] [ 5309/ 3300 kb/s] [eta 00m:11s] Threads: 3: [mmm] [65.6% done] [ 4970/ 3079 kb/s] [eta 00m:11s] Threads: 3: [VVm] [66.7% done] [ 7116/ 1165 kb/s] [eta 00m:11s] Threads: 3: [VVV] [67.6% done] [ 12150/ 0 kb/s] [eta 00m:11s] Threads: 3: [VVV] [72.7% done] [ 15627/ 0 kb/s] [eta 00m:09s] Threads: 3: [VVV] [73.5% done] [ 13410/ 0 kb/s] [eta 00m:09s] Threads: 2: [_VV] [77.1% done] [ 14257/ 0 kb/s] [eta 00m:08s] Threads: 2: [_VV] [82.4% done] [ 12827/ 0 kb/s] [eta 00m:06s] fio: (groupid=0): err= 0: pid=14993 read : io=100MiB, bw=3,938KiB/s, runt= 26621msec slat (msec): min= 0, max= 4396, avg=519.25, stdev=1098.84 clat (msec): min= 3, max= 680, avg=94.52, stdev=109.64 bw (KiB/s) : min= 233, max=10342, per=37.80%, avg=4239.33, stdev=2592.10 write: io=19,040KiB, bw=877KiB/s, runt= 22227msec slat (msec): min= 0, max= 111, avg= 0.33, stdev= 5.60 clat (msec): min= 0, max= 858, avg=109.21, stdev=156.35 bw (KiB/s) : min= 0, max= 5666, per=52.44%, avg=1769.94, stdev=2015.55 cpu : usr=3.05%, sys=0.20%, ctx=1812 IO depths : 1=0.1%, 2=0.4%, 4=10.5%, 8=88.9%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=1.1%, 4=0.7%, 10=6.7%, 20=19.1%, 50=34.3%, 100=6.6% lat (msec): 250=15.1%, 500=15.3%, 750=0.8%, 1000=0.1%, >=2000=0.0% fio: (groupid=0): err= 0: pid=14994 read : io=100MiB, bw=3,738KiB/s, runt= 28050msec slat (msec): min= 0, max= 6247, avg=1261.58, stdev=1980.52 clat (msec): min= 0, max= 607, avg=94.26, stdev=105.10 bw (KiB/s) : min= 21, max= 8631, per=37.49%, avg=4204.55, stdev=2459.49 write: io=33,136KiB, bw=1,556KiB/s, runt= 21802msec slat (msec): min= 0, max= 6, avg= 0.11, stdev= 0.58 clat (msec): min= 0, max= 991, avg=104.22, stdev=150.32 bw (KiB/s) : min= 0, max= 7107, per=72.66%, avg=2452.17, stdev=2177.21 cpu : usr=3.35%, sys=0.14%, ctx=1747 IO depths : 1=0.2%, 2=0.7%, 4=15.7%, 8=83.4%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=2.0%, 4=1.0%, 10=6.2%, 20=18.1%, 50=32.4%, 100=8.1% lat (msec): 250=17.7%, 500=13.1%, 750=1.0%, 1000=0.2%, >=2000=0.0% fio: (groupid=0): err= 0: pid=14995 read : io=100MiB, bw=3,745KiB/s, runt= 27999msec slat (msec): min= 0, max= 5466, avg=827.39, stdev=1632.25 clat (msec): min= 0, max= 758, avg=102.87, stdev=116.71 bw (KiB/s) : min= 22, max=12247, per=37.48%, avg=4202.45, stdev=2562.10 write: io=22,608KiB, bw=1,020KiB/s, runt= 22690msec slat (msec): min= 0, max= 146, avg= 0.40, stdev= 7.41 clat (msec): min= 0, max= 859, avg=124.61, stdev=173.46 bw (KiB/s) : min= 0, max= 6171, per=63.12%, avg=2130.41, stdev=2112.03 cpu : usr=2.69%, sys=0.23%, ctx=1757 IO depths : 1=0.2%, 2=0.4%, 4=9.5%, 8=89.9%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=1.5%, 4=0.7%, 10=6.1%, 20=14.7%, 50=34.2%, 100=8.7% lat (msec): 250=17.1%, 500=15.3%, 750=1.1%, 1000=0.4%, >=2000=0.0% Run status group 0 (all jobs): READ: io=300MiB, aggrb=11,214KiB/s, minb=3,738KiB/s, maxb=3,938KiB/s, mint=26621msec, maxt=28050msec WRITE: io=74,784KiB, aggrb=3,375KiB/s, minb=877KiB/s, maxb=1,556KiB/s, mint=26621msec, maxt=28050msec Disk stats (read/write): sda: ios=5110/1484, merge=1598/291, ticks=523656/176036, in_queue=699696, util=99.15% 2.53user 0.18system 0:28.49elapsed 9%CPU (0avgtext+0avgdata 0maxresident)k 0inputs+0outputs (0major+2386minor)pagefaults 0swaps