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] [9.7% done] [ 10948/ 7718 kb/s] [eta 00m:28s] Threads: 3: [mmm] [13.3% done] [ 8204/ 10040 kb/s] [eta 00m:26s] Threads: 3: [mmm] [16.7% done] [ 9118/ 7001 kb/s] [eta 00m:25s] Threads: 3: [mmm] [21.4% done] [ 13490/ 2710 kb/s] [eta 00m:22s] Threads: 3: [mmm] [24.1% done] [ 9459/ 6237 kb/s] [eta 00m:22s] Threads: 3: [mmm] [26.7% done] [ 13149/ 2494 kb/s] [eta 00m:22s] Threads: 3: [mmm] [30.0% done] [ 10821/ 5014 kb/s] [eta 00m:21s] Threads: 3: [mmm] [33.3% done] [ 11926/ 3482 kb/s] [eta 00m:20s] Threads: 3: [mmm] [35.5% done] [ 10720/ 3014 kb/s] [eta 00m:20s] Threads: 3: [mmm] [38.7% done] [ 11446/ 3279 kb/s] [eta 00m:19s] Threads: 3: [mmm] [41.9% done] [ 12141/ 1145 kb/s] [eta 00m:18s] Threads: 3: [mmm] [45.2% done] [ 9427/ 5705 kb/s] [eta 00m:17s] Threads: 3: [mmm] [48.4% done] [ 8762/ 2590 kb/s] [eta 00m:16s] Threads: 3: [mmm] [51.6% done] [ 8956/ 2788 kb/s] [eta 00m:15s] Threads: 3: [mmm] [53.1% done] [ 6520/ 4236 kb/s] [eta 00m:15s] Threads: 3: [mmm] [56.2% done] [ 7392/ 3528 kb/s] [eta 00m:14s] Threads: 3: [mmm] [59.4% done] [ 6992/ 3844 kb/s] [eta 00m:13s] Threads: 3: [mmm] [60.6% done] [ 7460/ 2340 kb/s] [eta 00m:13s] Threads: 3: [mmm] [63.6% done] [ 7246/ 1978 kb/s] [eta 00m:12s] Threads: 3: [mmm] [66.7% done] [ 4020/ 4064 kb/s] [eta 00m:11s] Threads: 3: [VVV] [69.7% done] [ 15900/ 956 kb/s] [eta 00m:10s] Threads: 3: [VVV] [72.7% done] [ 16308/ 0 kb/s] [eta 00m:09s] Threads: 3: [VVV] [78.1% done] [ 18632/ 0 kb/s] [eta 00m:07s] Threads: 2: [VV_] [83.9% done] [ 19764/ 0 kb/s] [eta 00m:05s] Threads: 1: [V__] [96.4% done] [ 22728/ 0 kb/s] [eta 00m:01s] fio: (groupid=0): err= 0: pid=12639 read : io=100MiB, bw=3,813KiB/s, runt= 27495msec slat (msec): min= 0, max= 5234, avg=1834.02, stdev=2083.93 clat (msec): min= 0, max= 807, avg=77.19, stdev=87.39 bw (KiB/s) : min= 6, max=21995, per=36.31%, avg=4154.39, stdev=4744.39 write: io=48,856KiB, bw=2,244KiB/s, runt= 22294msec slat (msec): min= 0, max= 4, avg= 0.08, stdev= 0.35 clat (msec): min= 0, max= 926, avg=101.95, stdev=124.76 bw (KiB/s) : min= 0, max= 6001, per=54.51%, avg=2437.62, stdev=1913.06 cpu : usr=3.42%, sys=0.17%, ctx=1913 IO depths : 1=0.1%, 2=0.2%, 4=14.7%, 8=85.0%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=1.2%, 4=1.4%, 10=8.9%, 20=15.4%, 50=23.2%, 100=19.6% lat (msec): 250=23.3%, 500=5.7%, 750=0.8%, 1000=0.2%, >=2000=0.0% fio: (groupid=0): err= 0: pid=12640 read : io=100MiB, bw=3,984KiB/s, runt= 26315msec slat (msec): min= 0, max= 5404, avg=817.40, stdev=1559.23 clat (msec): min= 5, max= 469, avg=87.93, stdev=69.36 bw (KiB/s) : min= 99, max=10872, per=39.30%, avg=4496.54, stdev=2652.92 write: io=29,428KiB, bw=1,437KiB/s, runt= 20960msec slat (msec): min= 0, max= 3, avg= 0.12, stdev= 0.43 clat (msec): min= 1, max= 741, avg=123.47, stdev=110.85 bw (KiB/s) : min= 0, max= 6954, per=61.09%, avg=2732.00, stdev=2314.51 cpu : usr=3.13%, sys=0.26%, ctx=1793 IO depths : 1=0.1%, 2=0.2%, 4=10.4%, 8=89.2%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=0.1%, 4=0.1%, 10=2.4%, 20=9.0%, 50=22.8%, 100=29.6% lat (msec): 250=30.3%, 500=5.3%, 750=0.2%, 1000=0.0%, >=2000=0.0% fio: (groupid=0): err= 0: pid=12641 read : io=100MiB, bw=4,101KiB/s, runt= 25564msec slat (msec): min= 0, max= 4079, avg=413.94, stdev=996.91 clat (msec): min= 2, max= 418, avg=97.54, stdev=69.63 bw (KiB/s) : min= 12, max=10232, per=37.93%, avg=4340.00, stdev=2198.10 write: io=19,080KiB, bw=903KiB/s, runt= 21636msec slat (msec): min= 0, max= 12, avg= 0.19, stdev= 1.08 clat (msec): min= 0, max= 934, avg=115.21, stdev=126.14 bw (KiB/s) : min= 0, max= 8016, per=55.81%, avg=2496.00, stdev=2681.83 cpu : usr=3.10%, sys=0.28%, ctx=1781 IO depths : 1=0.2%, 2=0.2%, 4=7.0%, 8=92.6%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=0.6%, 4=0.4%, 10=1.4%, 20=6.4%, 50=22.3%, 100=28.9% lat (msec): 250=35.0%, 500=4.6%, 750=0.2%, 1000=0.1%, >=2000=0.0% Run status group 0 (all jobs): READ: io=300MiB, aggrb=11,441KiB/s, minb=3,813KiB/s, maxb=4,101KiB/s, mint=25564msec, maxt=27495msec WRITE: io=97,364KiB, aggrb=4,472KiB/s, minb=903KiB/s, maxb=2,244KiB/s, mint=25564msec, maxt=27495msec Disk stats (read/write): sda: ios=5260/1627, merge=1226/290, ticks=473032/196800, in_queue=669828, util=99.24% 2.60user 0.27system 0:27.80elapsed 10%CPU (0avgtext+0avgdata 0maxresident)k 0inputs+0outputs (0major+2381minor)pagefaults 0swaps