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] [11.5% done] [ 13264/ 5448 kb/s] [eta 00m:23s] Threads: 3: [mmm] [15.4% done] [ 9376/ 9852 kb/s] [eta 00m:22s] Threads: 3: [mmm] [19.2% done] [ 15616/ 3740 kb/s] [eta 00m:21s] Threads: 3: [mmm] [23.1% done] [ 11756/ 6184 kb/s] [eta 00m:20s] Threads: 3: [mmm] [26.9% done] [ 10784/ 3756 kb/s] [eta 00m:19s] Threads: 3: [mmm] [29.6% done] [ 5804/ 9108 kb/s] [eta 00m:19s] Threads: 3: [mmm] [33.3% done] [ 6608/ 10008 kb/s] [eta 00m:18s] Threads: 3: [mmm] [35.7% done] [ 9040/ 6652 kb/s] [eta 00m:18s] Threads: 3: [mmm] [40.7% done] [ 8856/ 6496 kb/s] [eta 00m:16s] Threads: 3: [mmm] [42.9% done] [ 10256/ 4864 kb/s] [eta 00m:16s] Threads: 3: [mmm] [48.1% done] [ 11088/ 3180 kb/s] [eta 00m:14s] Threads: 3: [mmm] [50.0% done] [ 8384/ 3980 kb/s] [eta 00m:14s] Threads: 3: [mmm] [53.6% done] [ 7408/ 4900 kb/s] [eta 00m:13s] Threads: 3: [mmm] [55.2% done] [ 8368/ 3212 kb/s] [eta 00m:13s] Threads: 3: [mmm] [58.6% done] [ 5428/ 3776 kb/s] [eta 00m:12s] Threads: 3: [mmm] [60.0% done] [ 4076/ 5316 kb/s] [eta 00m:12s] Threads: 3: [mmm] [61.3% done] [ 4860/ 4768 kb/s] [eta 00m:12s] Threads: 3: [mmm] [62.5% done] [ 8076/ 408 kb/s] [eta 00m:12s] Threads: 3: [mmm] [65.6% done] [ 5944/ 1392 kb/s] [eta 00m:11s] Threads: 3: [mmV] [66.7% done] [ 5996/ 252 kb/s] [eta 00m:11s] Threads: 3: [VVV] [67.6% done] [ 11604/ 1172 kb/s] [eta 00m:11s] Threads: 3: [VVV] [72.7% done] [ 18968/ 0 kb/s] [eta 00m:09s] Threads: 3: [VVV] [75.8% done] [ 16464/ 0 kb/s] [eta 00m:08s] Threads: 3: [VVV] [78.8% done] [ 16252/ 0 kb/s] [eta 00m:07s] Threads: 3: [VVV] [84.4% done] [ 19084/ 0 kb/s] [eta 00m:05s] Threads: 2: [VV_] [87.5% done] [ 13400/ 0 kb/s] [eta 00m:04s] Threads: 2: [VV_] [90.6% done] [ 15732/ 0 kb/s] [eta 00m:03s] fio: (groupid=0): err= 0: pid=16211 read : io=100MiB, bw=3,532KiB/s, runt= 29687msec slat (msec): min= 0, max= 7059, avg=1496.04, stdev=2324.20 clat (msec): min= 0, max= 911, avg=96.50, stdev=114.50 bw (KiB/s) : min= 33, max= 8766, per=36.95%, avg=3884.19, stdev=2512.89 write: io=38,460KiB, bw=1,740KiB/s, runt= 22633msec slat (msec): min= 0, max= 13, avg= 0.15, stdev= 0.98 clat (msec): min= 0, max= 891, avg=106.17, stdev=159.34 bw (KiB/s) : min= 0, max= 9178, per=49.27%, avg=2628.30, stdev=2582.56 cpu : usr=3.21%, sys=0.26%, ctx=1775 IO depths : 1=0.2%, 2=0.5%, 4=16.7%, 8=82.6%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=1.9%, 4=0.9%, 10=7.3%, 20=18.1%, 50=34.5%, 100=6.1% lat (msec): 250=14.5%, 500=15.5%, 750=0.7%, 1000=0.4%, >=2000=0.0% fio: (groupid=0): err= 0: pid=16212 read : io=100MiB, bw=3,504KiB/s, runt= 29923msec slat (msec): min= 0, max= 7619, avg=1922.55, stdev=2553.76 clat (msec): min= 0, max= 754, avg=87.00, stdev=108.43 bw (KiB/s) : min= 58, max=10334, per=37.07%, avg=3896.98, stdev=2876.70 write: io=48,424KiB, bw=2,224KiB/s, runt= 22291msec slat (msec): min= 0, max= 196, avg= 0.37, stdev= 7.13 clat (msec): min= 0, max= 1060, avg=113.74, stdev=151.71 bw (KiB/s) : min= 0, max= 9111, per=54.04%, avg=2882.68, stdev=2636.29 cpu : usr=3.28%, sys=0.27%, ctx=1758 IO depths : 1=0.2%, 2=0.8%, 4=20.3%, 8=78.8%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=2.4%, 4=1.6%, 10=7.4%, 20=20.3%, 50=30.6%, 100=7.6% lat (msec): 250=14.2%, 500=14.6%, 750=0.9%, 1000=0.2%, >=2000=0.0% fio: (groupid=0): err= 0: pid=16213 read : io=100MiB, bw=3,684KiB/s, runt= 28458msec slat (msec): min= 0, max= 6698, avg=929.86, stdev=1785.86 clat (msec): min= 0, max= 616, avg=98.88, stdev=109.53 bw (KiB/s) : min= 7, max=11109, per=41.74%, avg=4387.21, stdev=2740.19 write: io=31,028KiB, bw=1,469KiB/s, runt= 21621msec slat (msec): min= 0, max= 26, avg= 0.13, stdev= 1.29 clat (msec): min= 0, max= 1219, avg=135.08, stdev=172.63 bw (KiB/s) : min= 0, max= 5666, per=50.28%, avg=2681.95, stdev=2006.11 cpu : usr=3.01%, sys=0.18%, ctx=1761 IO depths : 1=0.2%, 2=0.3%, 4=11.0%, 8=88.5%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=1.2%, 4=0.8%, 10=5.9%, 20=17.1%, 50=30.5%, 100=9.7% lat (msec): 250=16.8%, 500=16.7%, 750=1.0%, 1000=0.1%, >=2000=0.0% Run status group 0 (all jobs): READ: io=300MiB, aggrb=10,512KiB/s, minb=3,504KiB/s, maxb=3,684KiB/s, mint=28458msec, maxt=29923msec WRITE: io=115MiB, aggrb=5,334KiB/s, minb=1,469KiB/s, maxb=2,224KiB/s, mint=28458msec, maxt=29923msec Disk stats (read/write): sda: ios=4778/2003, merge=1623/334, ticks=497588/248012, in_queue=745620, util=99.49% 2.86user 0.27system 0:30.24elapsed 10%CPU (0avgtext+0avgdata 0maxresident)k 0inputs+0outputs (0major+2400minor)pagefaults 0swaps