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] [11.1% done] [ 4132/ 13936 kb/s] [eta 00m:24s] Threads: 3: [mmm] [15.4% done] [ 16156/ 3120 kb/s] [eta 00m:22s] Threads: 3: [mmm] [19.2% done] [ 13128/ 5184 kb/s] [eta 00m:21s] Threads: 3: [mmm] [24.0% done] [ 9216/ 8676 kb/s] [eta 00m:19s] Threads: 3: [mmm] [28.0% done] [ 8256/ 7996 kb/s] [eta 00m:18s] Threads: 3: [mmm] [30.8% done] [ 10196/ 2696 kb/s] [eta 00m:18s] Threads: 3: [mmm] [33.3% done] [ 8868/ 6080 kb/s] [eta 00m:18s] Threads: 3: [mmm] [37.0% done] [ 11204/ 4296 kb/s] [eta 00m:17s] Threads: 3: [mmm] [39.3% done] [ 13084/ 2996 kb/s] [eta 00m:17s] Threads: 3: [mmm] [42.9% done] [ 5976/ 8372 kb/s] [eta 00m:16s] Threads: 3: [mmm] [44.8% done] [ 2848/ 11144 kb/s] [eta 00m:16s] Threads: 3: [mmm] [46.7% done] [ 8656/ 2976 kb/s] [eta 00m:16s] Threads: 3: [mmm] [50.0% done] [ 6748/ 5228 kb/s] [eta 00m:15s] Threads: 3: [mmm] [53.3% done] [ 4596/ 7672 kb/s] [eta 00m:14s] Threads: 3: [mmm] [56.7% done] [ 6456/ 4644 kb/s] [eta 00m:13s] Threads: 3: [mmm] [58.1% done] [ 8104/ 2528 kb/s] [eta 00m:13s] Threads: 3: [mmm] [59.4% done] [ 7228/ 3320 kb/s] [eta 00m:13s] Threads: 3: [mmm] [60.6% done] [ 5968/ 3768 kb/s] [eta 00m:13s] Threads: 3: [mmm] [63.6% done] [ 2364/ 6892 kb/s] [eta 00m:12s] Threads: 3: [VVV] [68.8% done] [ 11724/ 0 kb/s] [eta 00m:10s] Threads: 3: [VVV] [71.9% done] [ 20752/ 0 kb/s] [eta 00m:09s] Threads: 3: [VVV] [77.4% done] [ 19796/ 0 kb/s] [eta 00m:07s] Threads: 3: [VVV] [80.6% done] [ 18516/ 0 kb/s] [eta 00m:06s] Threads: 2: [_VV] [83.9% done] [ 18204/ 0 kb/s] [eta 00m:05s] Threads: 1: [__V] [96.4% done] [ 19744/ 0 kb/s] [eta 00m:01s] fio: (groupid=0): err= 0: pid=450 read : io=100MiB, bw=3,981KiB/s, runt= 26335msec slat (msec): min= 0, max= 4424, avg=808.85, stdev=1344.57 clat (msec): min= 2, max= 392, avg=84.98, stdev=81.31 bw (KiB/s) : min= 7, max= 9527, per=41.21%, avg=4621.05, stdev=2892.18 write: io=29,196KiB, bw=1,363KiB/s, runt= 21921msec slat (msec): min= 0, max= 3, avg= 0.09, stdev= 0.39 clat (msec): min= 0, max= 913, avg=132.28, stdev=134.02 bw (KiB/s) : min= 0, max= 4624, per=41.51%, avg=2210.50, stdev=1482.51 cpu : usr=3.37%, sys=0.24%, ctx=1764 IO depths : 1=0.1%, 2=0.2%, 4=13.8%, 8=85.8%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=0.3%, 4=0.5%, 10=4.9%, 20=15.3%, 50=21.6%, 100=21.4% lat (msec): 250=27.8%, 500=7.4%, 750=0.5%, 1000=0.1%, >=2000=0.0% fio: (groupid=0): err= 0: pid=451 read : io=100MiB, bw=3,829KiB/s, runt= 27384msec slat (msec): min= 0, max= 7096, avg=1508.54, stdev=2361.04 clat (msec): min= 2, max= 418, avg=84.30, stdev=77.90 bw (KiB/s) : min= 7, max= 8412, per=39.71%, avg=4453.50, stdev=2410.97 write: io=32,640KiB, bw=1,646KiB/s, runt= 20296msec slat (msec): min= 0, max= 4, avg= 0.06, stdev= 0.33 clat (msec): min= 0, max= 884, avg=108.98, stdev=101.45 bw (KiB/s) : min= 0, max= 5805, per=48.31%, avg=2572.61, stdev=1973.24 cpu : usr=3.29%, sys=0.31%, ctx=1849 IO depths : 1=0.1%, 2=0.2%, 4=13.4%, 8=86.3%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=0.3%, 4=0.5%, 10=3.2%, 20=12.3%, 50=23.3%, 100=26.0% lat (msec): 250=29.0%, 500=5.1%, 750=0.1%, 1000=0.0%, >=2000=0.0% fio: (groupid=0): err= 0: pid=452 read : io=100MiB, bw=3,738KiB/s, runt= 28050msec slat (msec): min= 0, max= 6747, avg=2208.36, stdev=2538.21 clat (msec): min= 0, max= 549, avg=80.08, stdev=84.94 bw (KiB/s) : min= 19, max=19439, per=40.20%, avg=4507.74, stdev=3843.36 write: io=52,164KiB, bw=2,500KiB/s, runt= 21361msec slat (msec): min= 0, max= 4, avg= 0.05, stdev= 0.28 clat (msec): min= 0, max= 889, avg=103.15, stdev=103.99 bw (KiB/s) : min= 0, max= 7411, per=62.07%, avg=3305.29, stdev=2215.89 cpu : usr=3.58%, sys=0.29%, ctx=1830 IO depths : 1=0.1%, 2=0.4%, 4=17.9%, 8=81.5%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=0.7%, 4=0.9%, 10=5.7%, 20=14.2%, 50=22.8%, 100=23.4% lat (msec): 250=26.8%, 500=5.0%, 750=0.3%, 1000=0.1%, >=2000=0.0% Run status group 0 (all jobs): READ: io=300MiB, aggrb=11,214KiB/s, minb=3,738KiB/s, maxb=3,981KiB/s, mint=26335msec, maxt=28050msec WRITE: io=111MiB, aggrb=5,325KiB/s, minb=1,363KiB/s, maxb=2,500KiB/s, mint=26335msec, maxt=28050msec Disk stats (read/write): sda: ios=4891/2014, merge=1595/466, ticks=427760/246716, in_queue=674528, util=99.22% 2.84user 0.28system 0:28.38elapsed 11%CPU (0avgtext+0avgdata 0maxresident)k 0inputs+0outputs (0major+2400minor)pagefaults 0swaps