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] [ 14217/ 5352 kb/s] [eta 00m:20s] Threads: 3: [mmm] [17.4% done] [ 13638/ 6486 kb/s] [eta 00m:19s] Threads: 3: [mmm] [20.0% done] [ 9172/ 8999 kb/s] [eta 00m:20s] Threads: 3: [mmm] [24.0% done] [ 9745/ 8741 kb/s] [eta 00m:19s] Threads: 3: [mmm] [26.9% done] [ 4948/ 6008 kb/s] [eta 00m:19s] Threads: 3: [mmm] [30.8% done] [ 7020/ 7536 kb/s] [eta 00m:18s] Threads: 3: [mmm] [34.6% done] [ 11172/ 4808 kb/s] [eta 00m:17s] Threads: 3: [mmm] [37.0% done] [ 8352/ 7116 kb/s] [eta 00m:17s] Threads: 3: [mmm] [40.7% done] [ 14964/ 1804 kb/s] [eta 00m:16s] Threads: 3: [mmm] [44.4% done] [ 14044/ 1356 kb/s] [eta 00m:15s] Threads: 3: [mmm] [48.1% done] [ 10024/ 3372 kb/s] [eta 00m:14s] Threads: 3: [mmm] [50.0% done] [ 8112/ 4488 kb/s] [eta 00m:14s] Threads: 3: [mmm] [53.6% done] [ 6636/ 5304 kb/s] [eta 00m:13s] Threads: 3: [mmm] [55.2% done] [ 8276/ 4261 kb/s] [eta 00m:13s] Threads: 3: [mmm] [58.6% done] [ 10215/ 52 kb/s] [eta 00m:12s] Threads: 3: [mmm] [60.0% done] [ 8732/ 2369 kb/s] [eta 00m:12s] Threads: 3: [mmm] [63.3% done] [ 8586/ 1726 kb/s] [eta 00m:11s] Threads: 3: [mmm] [64.5% done] [ 4120/ 5697 kb/s] [eta 00m:11s] Threads: 3: [mmm] [67.7% done] [ 4567/ 3612 kb/s] [eta 00m:10s] Threads: 3: [VVV] [68.8% done] [ 14039/ 130 kb/s] [eta 00m:10s] Threads: 3: [VVV] [71.9% done] [ 19240/ 0 kb/s] [eta 00m:09s] Threads: 3: [VVV] [75.0% done] [ 20374/ 0 kb/s] [eta 00m:08s] Threads: 3: [VVV] [80.6% done] [ 19728/ 0 kb/s] [eta 00m:06s] Threads: 1: [V__] [83.9% done] [ 16875/ 0 kb/s] [eta 00m:05s] fio: (groupid=0): err= 0: pid=15046 read : io=100MiB, bw=3,869KiB/s, runt= 27098msec slat (msec): min= 0, max= 5676, avg=1313.41, stdev=2014.11 clat (msec): min= 2, max= 766, avg=90.82, stdev=97.05 bw (KiB/s) : min= 11, max=18959, per=37.31%, avg=4331.10, stdev=3385.30 write: io=38,628KiB, bw=1,837KiB/s, runt= 21531msec slat (msec): min= 0, max= 5, avg= 0.11, stdev= 0.52 clat (msec): min= 0, max= 829, avg=119.96, stdev=140.64 bw (KiB/s) : min= 0, max= 6180, per=60.29%, avg=2900.70, stdev=2149.08 cpu : usr=3.53%, sys=0.22%, ctx=1783 IO depths : 1=0.1%, 2=0.2%, 4=11.9%, 8=87.7%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=0.9%, 4=0.5%, 10=4.3%, 20=12.7%, 50=23.6%, 100=23.6% lat (msec): 250=27.2%, 500=5.6%, 750=1.1%, 1000=0.4%, >=2000=0.0% fio: (groupid=0): err= 0: pid=15047 read : io=100MiB, bw=4,013KiB/s, runt= 26123msec slat (msec): min= 0, max= 5260, avg=1127.55, stdev=1696.97 clat (msec): min= 0, max= 527, avg=86.54, stdev=77.67 bw (KiB/s) : min= 318, max=12042, per=38.49%, avg=4467.90, stdev=2867.59 write: io=34,436KiB, bw=1,680KiB/s, runt= 20985msec slat (msec): min= 0, max= 4, avg= 0.05, stdev= 0.30 clat (msec): min= 0, max= 1018, avg=102.78, stdev=107.89 bw (KiB/s) : min= 0, max= 6295, per=57.31%, avg=2757.36, stdev=2104.29 cpu : usr=3.43%, sys=0.20%, ctx=1804 IO depths : 1=0.1%, 2=0.3%, 4=13.7%, 8=85.9%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=0.5%, 4=0.9%, 10=3.7%, 20=12.1%, 50=22.9%, 100=25.4% lat (msec): 250=28.8%, 500=5.4%, 750=0.3%, 1000=0.0%, >=2000=0.0% fio: (groupid=0): err= 0: pid=15048 read : io=100MiB, bw=3,988KiB/s, runt= 26288msec slat (msec): min= 0, max= 4764, avg=644.85, stdev=1303.91 clat (msec): min= 2, max= 523, avg=93.52, stdev=74.01 bw (KiB/s) : min= 169, max= 9115, per=36.16%, avg=4198.02, stdev=2438.74 write: io=28,252KiB, bw=1,341KiB/s, runt= 21561msec slat (msec): min= 0, max= 11, avg= 0.15, stdev= 0.96 clat (msec): min= 0, max= 903, avg=113.99, stdev=119.72 bw (KiB/s) : min= 0, max= 8735, per=53.98%, avg=2597.05, stdev=2571.26 cpu : usr=3.13%, sys=0.29%, ctx=1845 IO depths : 1=0.1%, 2=0.2%, 4=9.2%, 8=90.5%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=0.6%, 4=0.3%, 10=1.3%, 20=9.7%, 50=22.1%, 100=27.9% lat (msec): 250=32.5%, 500=5.1%, 750=0.2%, 1000=0.1%, >=2000=0.0% Run status group 0 (all jobs): READ: io=300MiB, aggrb=11,608KiB/s, minb=3,869KiB/s, maxb=4,013KiB/s, mint=26123msec, maxt=27098msec WRITE: io=99MiB, aggrb=4,811KiB/s, minb=1,341KiB/s, maxb=1,837KiB/s, mint=26123msec, maxt=27098msec Disk stats (read/write): sda: ios=4995/1749, merge=1509/378, ticks=473828/289572, in_queue=775780, util=99.54% 2.72user 0.24system 0:27.39elapsed 10%CPU (0avgtext+0avgdata 0maxresident)k 0inputs+0outputs (0major+2388minor)pagefaults 0swaps