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] [11.5% done] [ 13713/ 4920 kb/s] [eta 00m:23s] Threads: 3: [mmm] [16.7% done] [ 15856/ 4676 kb/s] [eta 00m:20s] Threads: 3: [mmm] [20.8% done] [ 14024/ 4660 kb/s] [eta 00m:19s] Threads: 3: [mmm] [24.0% done] [ 10324/ 5160 kb/s] [eta 00m:19s] Threads: 3: [mmm] [26.9% done] [ 8860/ 8104 kb/s] [eta 00m:19s] Threads: 3: [mmm] [30.8% done] [ 9740/ 5104 kb/s] [eta 00m:18s] Threads: 3: [mmm] [34.6% done] [ 10830/ 4492 kb/s] [eta 00m:17s] Threads: 3: [mmm] [38.5% done] [ 13456/ 1860 kb/s] [eta 00m:16s] Threads: 3: [mmm] [40.7% done] [ 8200/ 4460 kb/s] [eta 00m:16s] Threads: 3: [mmm] [42.9% done] [ 6472/ 7532 kb/s] [eta 00m:16s] Threads: 3: [mmm] [46.4% done] [ 5752/ 7876 kb/s] [eta 00m:15s] Threads: 3: [mmm] [50.0% done] [ 11672/ 1064 kb/s] [eta 00m:14s] Threads: 3: [mmm] [53.6% done] [ 9992/ 2632 kb/s] [eta 00m:13s] Threads: 3: [mmm] [55.2% done] [ 8144/ 3492 kb/s] [eta 00m:13s] Threads: 3: [mmm] [56.7% done] [ 7736/ 3148 kb/s] [eta 00m:13s] Threads: 3: [mmm] [60.0% done] [ 9788/ 1012 kb/s] [eta 00m:12s] Threads: 3: [mmm] [63.3% done] [ 9760/ 1632 kb/s] [eta 00m:11s] Threads: 3: [mmm] [64.5% done] [ 5460/ 4256 kb/s] [eta 00m:11s] Threads: 3: [mmm] [67.7% done] [ 7412/ 1984 kb/s] [eta 00m:10s] Threads: 3: [VVV] [71.0% done] [ 17880/ 0 kb/s] [eta 00m:09s] Threads: 3: [VVV] [74.2% done] [ 16832/ 0 kb/s] [eta 00m:08s] Threads: 3: [VVV] [77.4% done] [ 18236/ 0 kb/s] [eta 00m:07s] Threads: 2: [VV_] [83.3% done] [ 19216/ 0 kb/s] [eta 00m:05s] fio: (groupid=0): err= 0: pid=855 read : io=100MiB, bw=3,965KiB/s, runt= 26441msec slat (msec): min= 0, max= 5237, avg=1043.45, stdev=1674.72 clat (msec): min= 3, max= 829, avg=86.82, stdev=85.69 bw (KiB/s) : min= 89, max=11494, per=34.84%, avg=4145.08, stdev=2895.63 write: io=35,264KiB, bw=1,699KiB/s, runt= 21244msec slat (msec): min= 0, max= 3, avg= 0.06, stdev= 0.27 clat (msec): min= 1, max= 1063, avg=122.46, stdev=129.46 bw (KiB/s) : min= 0, max= 7080, per=60.60%, avg=2561.16, stdev=2197.97 cpu : usr=3.56%, sys=0.20%, ctx=1773 IO depths : 1=0.1%, 2=0.3%, 4=12.6%, 8=87.0%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=0.0%, 4=0.4%, 10=3.8%, 20=12.6%, 50=25.8%, 100=21.3% lat (msec): 250=29.6%, 500=5.4%, 750=0.8%, 1000=0.1%, >=2000=0.0% fio: (groupid=0): err= 0: pid=856 read : io=100MiB, bw=3,975KiB/s, runt= 26373msec slat (msec): min= 0, max= 6012, avg=1176.28, stdev=1932.54 clat (msec): min= 3, max= 606, avg=91.70, stdev=78.02 bw (KiB/s) : min= 36, max=10188, per=35.54%, avg=4228.20, stdev=2481.85 write: io=35,380KiB, bw=1,783KiB/s, runt= 20318msec slat (msec): min= 0, max= 7, avg= 0.08, stdev= 0.50 clat (msec): min= 0, max= 775, avg=105.58, stdev=106.71 bw (KiB/s) : min= 0, max=11298, per=69.00%, avg=2916.04, stdev=2941.60 cpu : usr=3.38%, sys=0.30%, ctx=1733 IO depths : 1=0.1%, 2=0.2%, 4=13.0%, 8=86.6%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=1.2%, 4=0.3%, 10=3.1%, 20=8.9%, 50=23.4%, 100=27.4% lat (msec): 250=29.5%, 500=5.8%, 750=0.3%, 1000=0.1%, >=2000=0.0% fio: (groupid=0): err= 0: pid=857 read : io=100MiB, bw=4,172KiB/s, runt= 25133msec slat (msec): min= 0, max= 3489, avg=324.09, stdev=797.69 clat (msec): min= 3, max= 672, avg=99.87, stdev=84.00 bw (KiB/s) : min= 23, max= 7999, per=36.94%, avg=4394.19, stdev=2043.46 write: io=18,116KiB, bw=862KiB/s, runt= 21503msec slat (msec): min= 0, max= 2, avg= 0.06, stdev= 0.30 clat (msec): min= 0, max= 990, avg=113.52, stdev=106.45 bw (KiB/s) : min= 0, max= 5443, per=59.30%, avg=2506.15, stdev=1948.80 cpu : usr=3.41%, sys=0.25%, ctx=1752 IO depths : 1=0.2%, 2=0.3%, 4=7.8%, 8=91.8%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=0.2%, 4=0.3%, 10=1.7%, 20=9.1%, 50=21.5%, 100=28.2% lat (msec): 250=31.1%, 500=7.4%, 750=0.3%, 1000=0.1%, >=2000=0.0% Run status group 0 (all jobs): READ: io=300MiB, aggrb=11,897KiB/s, minb=3,965KiB/s, maxb=4,172KiB/s, mint=25133msec, maxt=26441msec WRITE: io=88,760KiB, aggrb=4,226KiB/s, minb=862KiB/s, maxb=1,783KiB/s, mint=25133msec, maxt=26441msec Disk stats (read/write): sda: ios=4992/1495, merge=1396/422, ticks=489216/191568, in_queue=680784, util=99.43% 2.74user 0.22system 0:26.69elapsed 11%CPU (0avgtext+0avgdata 0maxresident)k 0inputs+0outputs (0major+2379minor)pagefaults 0swaps