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] [12.0% done] [ 9164/ 10494 kb/s] [eta 00m:22s] Threads: 3: [mmm] [16.0% done] [ 12268/ 6560 kb/s] [eta 00m:21s] Threads: 3: [mmm] [20.0% done] [ 13304/ 3892 kb/s] [eta 00m:20s] Threads: 3: [mmm] [24.0% done] [ 14356/ 3544 kb/s] [eta 00m:19s] Threads: 3: [mmm] [26.9% done] [ 5652/ 8360 kb/s] [eta 00m:19s] Threads: 3: [mmm] [30.8% done] [ 10568/ 4712 kb/s] [eta 00m:18s] Threads: 3: [mmm] [33.3% done] [ 10564/ 3440 kb/s] [eta 00m:18s] Threads: 3: [mmm] [37.0% done] [ 10996/ 3068 kb/s] [eta 00m:17s] Threads: 3: [mmm] [39.3% done] [ 14224/ 1760 kb/s] [eta 00m:17s] Threads: 3: [mmm] [41.4% done] [ 11484/ 2988 kb/s] [eta 00m:17s] Threads: 3: [mmm] [44.8% done] [ 10312/ 3504 kb/s] [eta 00m:16s] Threads: 3: [mmm] [46.7% done] [ 4760/ 6536 kb/s] [eta 00m:16s] Threads: 3: [mmm] [48.4% done] [ 6488/ 4936 kb/s] [eta 00m:16s] Threads: 3: [mmm] [51.6% done] [ 9944/ 1884 kb/s] [eta 00m:15s] Threads: 3: [mmm] [54.8% done] [ 6732/ 4908 kb/s] [eta 00m:14s] Threads: 3: [mmm] [56.2% done] [ 4240/ 5681 kb/s] [eta 00m:14s] Threads: 3: [mmm] [59.4% done] [ 5924/ 3996 kb/s] [eta 00m:13s] Threads: 3: [mmm] [60.6% done] [ 7052/ 2504 kb/s] [eta 00m:13s] Threads: 3: [mmm] [63.6% done] [ 5896/ 3188 kb/s] [eta 00m:12s] Threads: 3: [VVV] [66.7% done] [ 1964/ 6704 kb/s] [eta 00m:11s] Threads: 3: [VVV] [71.9% done] [ 19136/ 0 kb/s] [eta 00m:09s] Threads: 3: [VVV] [75.0% done] [ 17744/ 0 kb/s] [eta 00m:08s] Threads: 3: [VVV] [78.1% done] [ 18616/ 0 kb/s] [eta 00m:07s] Threads: 3: [VVV] [81.2% done] [ 18232/ 0 kb/s] [eta 00m:06s] Threads: 2: [VV_] [87.1% done] [ 15972/ 0 kb/s] [eta 00m:04s] Threads: 1: [V__] [100.0% done] [ 16672/ 0 kb/s] [eta 00m:00s] fio: (groupid=0): err= 0: pid=15018 read : io=100MiB, bw=3,662KiB/s, runt= 28630msec slat (msec): min= 0, max= 6388, avg=1992.79, stdev=2362.85 clat (msec): min= 0, max= 536, avg=81.04, stdev=82.64 bw (KiB/s) : min= 3, max=19242, per=42.40%, avg=4658.31, stdev=3687.59 write: io=51,064KiB, bw=2,343KiB/s, runt= 22314msec slat (msec): min= 0, max= 15, avg= 0.13, stdev= 0.87 clat (msec): min= 0, max= 1052, avg=97.37, stdev=132.61 bw (KiB/s) : min= 0, max= 7155, per=61.29%, avg=3065.78, stdev=2201.47 cpu : usr=3.48%, sys=0.29%, ctx=1929 IO depths : 1=0.1%, 2=0.5%, 4=17.3%, 8=82.1%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=3.0%, 4=1.5%, 10=7.0%, 20=15.9%, 50=22.2%, 100=19.0% lat (msec): 250=25.2%, 500=5.3%, 750=0.7%, 1000=0.2%, >=2000=0.1% fio: (groupid=0): err= 0: pid=15019 read : io=100MiB, bw=3,736KiB/s, runt= 28064msec slat (msec): min= 0, max= 7273, avg=1683.38, stdev=2493.58 clat (msec): min= 0, max= 603, avg=91.60, stdev=81.39 bw (KiB/s) : min= 2, max=11365, per=41.09%, avg=4514.40, stdev=2480.43 write: io=34,040KiB, bw=1,662KiB/s, runt= 20962msec slat (msec): min= 0, max= 2, avg= 0.04, stdev= 0.24 clat (msec): min= 0, max= 748, avg=102.51, stdev=113.98 bw (KiB/s) : min= 0, max= 7247, per=57.13%, avg=2857.65, stdev=2151.45 cpu : usr=3.55%, sys=0.19%, ctx=1798 IO depths : 1=0.2%, 2=0.3%, 4=14.1%, 8=85.5%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=1.3%, 4=0.7%, 10=3.0%, 20=10.5%, 50=23.6%, 100=25.5% lat (msec): 250=28.0%, 500=6.6%, 750=0.6%, 1000=0.0%, >=2000=0.0% fio: (groupid=0): err= 0: pid=15020 read : io=100MiB, bw=3,863KiB/s, runt= 27138msec slat (msec): min= 0, max= 5464, avg=769.20, stdev=1485.86 clat (msec): min= 1, max= 598, avg=93.43, stdev=81.24 bw (KiB/s) : min= 8, max= 9361, per=38.46%, avg=4225.95, stdev=2193.39 write: io=23,900KiB, bw=1,126KiB/s, runt= 21716msec slat (msec): min= 0, max= 4, avg= 0.04, stdev= 0.27 clat (msec): min= 0, max= 735, avg=107.43, stdev=102.29 bw (KiB/s) : min= 0, max= 6168, per=47.89%, avg=2395.28, stdev=2081.49 cpu : usr=3.14%, sys=0.34%, ctx=1885 IO depths : 1=0.1%, 2=0.2%, 4=10.3%, 8=89.4%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=0.2%, 4=0.2%, 10=2.3%, 20=9.5%, 50=24.3%, 100=28.0% lat (msec): 250=28.0%, 500=6.9%, 750=0.5%, 1000=0.0%, >=2000=0.0% Run status group 0 (all jobs): READ: io=300MiB, aggrb=10,987KiB/s, minb=3,662KiB/s, maxb=3,863KiB/s, mint=27138msec, maxt=28630msec WRITE: io=106MiB, aggrb=5,002KiB/s, minb=1,126KiB/s, maxb=2,343KiB/s, mint=27138msec, maxt=28630msec Disk stats (read/write): sda: ios=5089/2040, merge=1277/274, ticks=485892/248048, in_queue=733940, util=99.35% 2.90user 0.28system 0:28.96elapsed 11%CPU (0avgtext+0avgdata 0maxresident)k 0inputs+0outputs (0major+2393minor)pagefaults 0swaps