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] [10.7% done] [ 10220/ 11224 kb/s] [eta 00m:25s] Threads: 3: [mmm] [14.8% done] [ 10078/ 10039 kb/s] [eta 00m:23s] Threads: 3: [mmm] [20.0% done] [ 13504/ 5037 kb/s] [eta 00m:20s] Threads: 3: [mmm] [24.0% done] [ 14989/ 1587 kb/s] [eta 00m:19s] Threads: 3: [mmm] [26.9% done] [ 13792/ 4808 kb/s] [eta 00m:19s] Threads: 3: [mmm] [29.6% done] [ 5502/ 10149 kb/s] [eta 00m:19s] Threads: 3: [mmm] [33.3% done] [ 8463/ 6191 kb/s] [eta 00m:18s] Threads: 3: [mmm] [37.0% done] [ 9802/ 5895 kb/s] [eta 00m:17s] Threads: 3: [mmm] [40.7% done] [ 6864/ 8140 kb/s] [eta 00m:16s] Threads: 3: [mmm] [44.4% done] [ 11228/ 3320 kb/s] [eta 00m:15s] Threads: 3: [mmm] [48.1% done] [ 9318/ 3698 kb/s] [eta 00m:14s] Threads: 3: [mmm] [50.0% done] [ 6687/ 3284 kb/s] [eta 00m:14s] Threads: 3: [mmm] [51.7% done] [ 7187/ 5025 kb/s] [eta 00m:14s] Threads: 3: [mmm] [55.2% done] [ 4300/ 5903 kb/s] [eta 00m:13s] Threads: 3: [mmm] [56.7% done] [ 7932/ 3678 kb/s] [eta 00m:13s] Threads: 3: [mmm] [60.0% done] [ 7171/ 1055 kb/s] [eta 00m:12s] Threads: 3: [mmm] [61.3% done] [ 6210/ 2079 kb/s] [eta 00m:12s] Threads: 3: [mmm] [64.5% done] [ 5116/ 2449 kb/s] [eta 00m:11s] Threads: 3: [mVm] [65.6% done] [ 9176/ 0 kb/s] [eta 00m:11s] Threads: 3: [mVm] [66.7% done] [ 9625/ 1437 kb/s] [eta 00m:11s] Threads: 3: [VVV] [67.6% done] [ 12536/ 66 kb/s] [eta 00m:11s] Threads: 3: [VVV] [70.6% done] [ 14024/ 0 kb/s] [eta 00m:10s] Threads: 3: [VVV] [75.8% done] [ 17207/ 0 kb/s] [eta 00m:08s] Threads: 3: [VVV] [77.1% done] [ 16703/ 0 kb/s] [eta 00m:08s] Threads: 2: [V_V] [82.4% done] [ 17581/ 0 kb/s] [eta 00m:06s] Threads: 1: [__V] [93.5% done] [ 15167/ 0 kb/s] [eta 00m:02s] fio: (groupid=0): err= 0: pid=29438 read : io=100MiB, bw=3,729KiB/s, runt= 28114msec slat (msec): min= 0, max= 4969, avg=663.24, stdev=1375.28 clat (msec): min= 3, max= 860, avg=104.79, stdev=124.06 bw (KiB/s) : min= 343, max=11118, per=36.19%, avg=3917.14, stdev=2479.49 write: io=22,908KiB, bw=1,012KiB/s, runt= 23160msec slat (msec): min= 0, max= 3, avg= 0.07, stdev= 0.34 clat (msec): min= 0, max= 1180, avg=109.50, stdev=167.12 bw (KiB/s) : min= 0, max= 7090, per=44.88%, avg=2082.20, stdev=2235.48 cpu : usr=3.10%, sys=0.30%, ctx=1774 IO depths : 1=0.1%, 2=0.5%, 4=9.7%, 8=89.6%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=1.7%, 4=1.0%, 10=6.2%, 20=18.0%, 50=32.6%, 100=8.4% lat (msec): 250=12.7%, 500=17.8%, 750=1.1%, 1000=0.2%, >=2000=0.1% fio: (groupid=0): err= 0: pid=29439 read : io=100MiB, bw=3,774KiB/s, runt= 27783msec slat (msec): min= 0, max= 7233, avg=1374.85, stdev=2101.92 clat (msec): min= 0, max= 687, avg=94.52, stdev=112.03 bw (KiB/s) : min= 15, max=14835, per=40.91%, avg=4427.60, stdev=3242.46 write: io=41,936KiB, bw=2,084KiB/s, runt= 20602msec slat (msec): min= 0, max= 2, avg= 0.04, stdev= 0.20 clat (msec): min= 0, max= 627, avg=109.04, stdev=131.11 bw (KiB/s) : min= 0, max= 8510, per=68.08%, avg=3158.16, stdev=2566.92 cpu : usr=3.21%, sys=0.32%, ctx=1692 IO depths : 1=0.1%, 2=0.5%, 4=16.6%, 8=82.8%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=1.9%, 4=0.8%, 10=6.0%, 20=17.6%, 50=33.4%, 100=9.4% lat (msec): 250=13.7%, 500=16.3%, 750=0.8%, 1000=0.0%, >=2000=0.0% fio: (groupid=0): err= 0: pid=29440 read : io=100MiB, bw=3,607KiB/s, runt= 29065msec slat (msec): min= 0, max= 5861, avg=1466.22, stdev=2092.98 clat (msec): min= 0, max= 637, avg=90.90, stdev=112.20 bw (KiB/s) : min= 73, max=19044, per=37.22%, avg=4028.23, stdev=3417.82 write: io=40,368KiB, bw=1,780KiB/s, runt= 23222msec slat (msec): min= 0, max= 68, avg= 0.16, stdev= 2.71 clat (msec): min= 0, max= 854, avg=115.06, stdev=157.25 bw (KiB/s) : min= 0, max= 6853, per=53.66%, avg=2489.28, stdev=1996.18 cpu : usr=3.45%, sys=0.29%, ctx=1845 IO depths : 1=0.1%, 2=0.5%, 4=13.4%, 8=85.9%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=3.3%, 4=1.6%, 10=8.5%, 20=20.2%, 50=28.4%, 100=8.1% lat (msec): 250=13.2%, 500=15.5%, 750=0.8%, 1000=0.2%, >=2000=0.0% Run status group 0 (all jobs): READ: io=300MiB, aggrb=10,823KiB/s, minb=3,607KiB/s, maxb=3,774KiB/s, mint=27783msec, maxt=29065msec WRITE: io=103MiB, aggrb=4,639KiB/s, minb=1,012KiB/s, maxb=2,084KiB/s, mint=27783msec, maxt=29065msec Disk stats (read/write): sda: ios=4939/1783, merge=1634/491, ticks=499400/201916, in_queue=701556, util=99.22% 2.84user 0.32system 0:29.44elapsed 10%CPU (0avgtext+0avgdata 0maxresident)k 0inputs+0outputs (0major+2397minor)pagefaults 0swaps