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] [13.0% done] [ 13660/ 12792 kb/s] [eta 00m:20s] Threads: 3: [mmm] [18.2% done] [ 10332/ 11680 kb/s] [eta 00m:18s] Threads: 3: [mmm] [23.8% done] [ 13684/ 10064 kb/s] [eta 00m:16s] Threads: 3: [mmm] [30.0% done] [ 18640/ 3148 kb/s] [eta 00m:14s] Threads: 3: [mmm] [35.0% done] [ 11928/ 7972 kb/s] [eta 00m:13s] Threads: 3: [mmm] [40.0% done] [ 10056/ 9208 kb/s] [eta 00m:12s] Threads: 3: [mmm] [45.0% done] [ 13200/ 6120 kb/s] [eta 00m:11s] Threads: 3: [mmm] [47.6% done] [ 9600/ 7488 kb/s] [eta 00m:11s] Threads: 3: [mmm] [52.4% done] [ 9164/ 5941 kb/s] [eta 00m:10s] Threads: 3: [mmm] [54.5% done] [ 7516/ 8140 kb/s] [eta 00m:10s] Threads: 3: [mmm] [56.5% done] [ 7448/ 5628 kb/s] [eta 00m:10s] Threads: 3: [mmm] [60.9% done] [ 8768/ 3248 kb/s] [eta 00m:09s] Threads: 3: [mmm] [62.5% done] [ 4060/ 6732 kb/s] [eta 00m:09s] Threads: 3: [mmm] [64.0% done] [ 5484/ 4900 kb/s] [eta 00m:09s] Threads: 3: [mmm] [68.0% done] [ 3140/ 6984 kb/s] [eta 00m:08s] Threads: 3: [VVV] [72.0% done] [ 21584/ 212 kb/s] [eta 00m:07s] Threads: 3: [VVV] [76.0% done] [ 21716/ 0 kb/s] [eta 00m:06s] Threads: 3: [VVV] [80.0% done] [ 18488/ 0 kb/s] [eta 00m:05s] Threads: 3: [VVV] [84.0% done] [ 21012/ 0 kb/s] [eta 00m:04s] Threads: 3: [VVV] [88.0% done] [ 19479/ 0 kb/s] [eta 00m:03s] Threads: 1: [__V] [92.0% done] [ 20704/ 0 kb/s] [eta 00m:02s] fio: (groupid=0): err= 0: pid=23762 read : io=100MiB, bw=4,484KiB/s, runt= 23381msec slat (msec): min= 0, max= 6096, avg=1104.53, stdev=1773.45 clat (msec): min= 0, max= 570, avg=82.71, stdev=79.69 bw (KiB/s) : min= 55, max=10338, per=36.95%, avg=4937.82, stdev=2822.69 write: io=32,588KiB, bw=1,926KiB/s, runt= 17320msec slat (msec): min= 0, max= 3, avg= 0.07, stdev= 0.33 clat (msec): min= 0, max= 545, avg=71.66, stdev=77.36 bw (KiB/s) : min= 0, max= 8255, per=43.70%, avg=3211.33, stdev=3001.47 cpu : usr=4.11%, sys=0.29%, ctx=1853 IO depths : 1=0.1%, 2=0.3%, 4=14.1%, 8=85.4%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=1.7%, 4=0.7%, 10=4.7%, 20=13.9%, 50=24.0%, 100=28.0% lat (msec): 250=22.3%, 500=4.3%, 750=0.4%, 1000=0.0%, >=2000=0.0% fio: (groupid=0): err= 0: pid=23763 read : io=100MiB, bw=4,496KiB/s, runt= 23320msec slat (msec): min= 0, max= 6834, avg=2513.81, stdev=2628.04 clat (msec): min= 0, max= 398, avg=63.94, stdev=69.57 bw (KiB/s) : min= 19, max=11475, per=39.47%, avg=5274.68, stdev=3345.95 write: io=55,508KiB, bw=3,366KiB/s, runt= 16885msec slat (msec): min= 0, max= 2, avg= 0.04, stdev= 0.24 clat (msec): min= 0, max= 810, avg=80.02, stdev=100.12 bw (KiB/s) : min= 0, max=12477, per=56.37%, avg=4142.92, stdev=3245.75 cpu : usr=4.25%, sys=0.21%, ctx=1814 IO depths : 1=0.1%, 2=0.4%, 4=21.7%, 8=77.8%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=3.6%, 4=1.2%, 10=8.5%, 20=17.7%, 50=22.7%, 100=25.3% lat (msec): 250=16.5%, 500=4.2%, 750=0.2%, 1000=0.0%, >=2000=0.0% fio: (groupid=0): err= 0: pid=23764 read : io=100MiB, bw=4,454KiB/s, runt= 23540msec slat (msec): min= 0, max= 6798, avg=1462.19, stdev=2080.79 clat (msec): min= 0, max= 780, avg=75.14, stdev=85.62 bw (KiB/s) : min= 70, max=10758, per=37.03%, avg=4948.06, stdev=2974.71 write: io=36,212KiB, bw=2,194KiB/s, runt= 16897msec slat (msec): min= 0, max= 5, avg= 0.06, stdev= 0.34 clat (msec): min= 0, max= 800, avg=76.91, stdev=94.32 bw (KiB/s) : min= 0, max= 7498, per=39.23%, avg=2883.00, stdev=2561.81 cpu : usr=3.81%, sys=0.34%, ctx=1881 IO depths : 1=0.2%, 2=0.5%, 4=15.2%, 8=84.2%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=1.1%, 4=1.0%, 10=5.0%, 20=15.7%, 50=28.1%, 100=26.3% lat (msec): 250=17.6%, 500=4.4%, 750=0.5%, 1000=0.2%, >=2000=0.0% Run status group 0 (all jobs): READ: io=300MiB, aggrb=13,363KiB/s, minb=4,454KiB/s, maxb=4,496KiB/s, mint=23320msec, maxt=23540msec WRITE: io=121MiB, aggrb=7,349KiB/s, minb=1,926KiB/s, maxb=3,366KiB/s, mint=23320msec, maxt=23540msec Disk stats (read/write): sda: ios=4430/2266, merge=1731/427, ticks=334784/185576, in_queue=520356, util=99.27% 2.88user 0.20system 0:23.80elapsed 13%CPU (0avgtext+0avgdata 0maxresident)k 0inputs+0outputs (0major+2402minor)pagefaults 0swaps