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] [ 16484/ 2560 kb/s] [eta 00m:23s] Threads: 3: [mmm] [16.0% done] [ 16732/ 2848 kb/s] [eta 00m:21s] Threads: 3: [mmm] [20.0% done] [ 15124/ 3412 kb/s] [eta 00m:20s] Threads: 3: [mmm] [23.1% done] [ 11060/ 5616 kb/s] [eta 00m:20s] Threads: 3: [mmm] [26.9% done] [ 8756/ 6892 kb/s] [eta 00m:19s] Threads: 3: [mmm] [29.6% done] [ 8204/ 7588 kb/s] [eta 00m:19s] Threads: 3: [mmm] [33.3% done] [ 8800/ 6548 kb/s] [eta 00m:18s] Threads: 3: [mmm] [35.7% done] [ 15348/ 356 kb/s] [eta 00m:18s] Threads: 3: [mmm] [37.9% done] [ 8300/ 7276 kb/s] [eta 00m:18s] Threads: 3: [mmm] [41.4% done] [ 8160/ 7020 kb/s] [eta 00m:17s] Threads: 3: [mmm] [43.3% done] [ 7964/ 6936 kb/s] [eta 00m:17s] Threads: 3: [mmm] [46.7% done] [ 9820/ 2804 kb/s] [eta 00m:16s] Threads: 3: [mmm] [50.0% done] [ 4984/ 6632 kb/s] [eta 00m:15s] Threads: 3: [mmm] [53.3% done] [ 4524/ 7180 kb/s] [eta 00m:14s] Threads: 3: [mmm] [56.7% done] [ 5656/ 4100 kb/s] [eta 00m:13s] Threads: 3: [mmm] [58.1% done] [ 7548/ 688 kb/s] [eta 00m:13s] Threads: 3: [mmm] [61.3% done] [ 8436/ 0 kb/s] [eta 00m:12s] Threads: 3: [mmm] [62.5% done] [ 8216/ 0 kb/s] [eta 00m:12s] Threads: 3: [mmm] [65.6% done] [ 6952/ 0 kb/s] [eta 00m:11s] Threads: 3: [mVm] [66.7% done] [ 6484/ 0 kb/s] [eta 00m:11s] Threads: 3: [VVV] [67.6% done] [ 12488/ 0 kb/s] [eta 00m:11s] Threads: 3: [VVV] [72.7% done] [ 15040/ 0 kb/s] [eta 00m:09s] Threads: 3: [VVV] [75.8% done] [ 17060/ 0 kb/s] [eta 00m:08s] Threads: 3: [VVV] [78.8% done] [ 14456/ 0 kb/s] [eta 00m:07s] Threads: 3: [VVV] [81.8% done] [ 16304/ 0 kb/s] [eta 00m:06s] Threads: 1: [EEV] [93.3% done] [ 18316/ 0 kb/s] [eta 00m:02s] fio: (groupid=0): err= 0: pid=15139 read : io=100MiB, bw=3,801KiB/s, runt= 27584msec slat (msec): min= 0, max= 5212, avg=620.46, stdev=1288.13 clat (msec): min= 0, max= 831, avg=101.42, stdev=115.47 bw (KiB/s) : min= 146, max=10773, per=39.92%, avg=4359.72, stdev=2574.57 write: io=22,512KiB, bw=1,032KiB/s, runt= 22334msec slat (msec): min= 0, max= 16, avg= 0.06, stdev= 0.81 clat (msec): min= 0, max= 733, avg=118.66, stdev=158.93 bw (KiB/s) : min= 0, max= 6979, per=57.95%, avg=2577.40, stdev=2292.57 cpu : usr=3.28%, sys=0.15%, ctx=1745 IO depths : 1=0.2%, 2=0.3%, 4=10.9%, 8=88.6%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=1.3%, 4=0.4%, 10=6.9%, 20=16.8%, 50=34.0%, 100=7.4% lat (msec): 250=15.6%, 500=16.6%, 750=0.8%, 1000=0.0%, >=2000=0.0% fio: (groupid=0): err= 0: pid=15140 read : io=100MiB, bw=3,760KiB/s, runt= 27883msec slat (msec): min= 0, max= 5941, avg=760.98, stdev=1547.15 clat (msec): min= 0, max= 824, avg=101.44, stdev=110.01 bw (KiB/s) : min= 18, max=10272, per=37.10%, avg=4051.74, stdev=2476.12 write: io=31,728KiB, bw=1,482KiB/s, runt= 21908msec slat (msec): min= 0, max= 12, avg= 0.19, stdev= 1.13 clat (msec): min= 0, max= 854, avg=103.44, stdev=142.86 bw (KiB/s) : min= 0, max= 8499, per=74.77%, avg=3325.94, stdev=3144.81 cpu : usr=3.11%, sys=0.20%, ctx=1812 IO depths : 1=0.2%, 2=0.3%, 4=10.3%, 8=89.3%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=1.4%, 4=1.7%, 10=6.1%, 20=15.0%, 50=32.5%, 100=9.8% lat (msec): 250=16.4%, 500=16.2%, 750=0.7%, 1000=0.1%, >=2000=0.0% fio: (groupid=0): err= 0: pid=15141 read : io=100MiB, bw=3,640KiB/s, runt= 28802msec slat (msec): min= 0, max= 6334, avg=1404.28, stdev=2192.10 clat (msec): min= 0, max= 591, avg=92.28, stdev=109.43 bw (KiB/s) : min= 25, max=19352, per=35.39%, avg=3865.12, stdev=3287.15 write: io=43,584KiB, bw=1,982KiB/s, runt= 22517msec slat (msec): min= 0, max= 56, avg= 0.18, stdev= 2.42 clat (msec): min= 0, max= 1077, avg=124.58, stdev=174.92 bw (KiB/s) : min= 0, max= 7920, per=69.15%, avg=3075.72, stdev=2430.31 cpu : usr=3.44%, sys=0.17%, ctx=1776 IO depths : 1=0.1%, 2=0.3%, 4=13.3%, 8=86.3%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=2.5%, 4=1.2%, 10=7.3%, 20=15.5%, 50=35.1%, 100=8.0% lat (msec): 250=13.1%, 500=15.7%, 750=1.1%, 1000=0.3%, >=2000=0.1% Run status group 0 (all jobs): READ: io=300MiB, aggrb=10,921KiB/s, minb=3,640KiB/s, maxb=3,801KiB/s, mint=27584msec, maxt=28802msec WRITE: io=97,824KiB, aggrb=4,448KiB/s, minb=1,032KiB/s, maxb=1,982KiB/s, mint=27584msec, maxt=28802msec Disk stats (read/write): sda: ios=5014/1549, merge=1263/225, ticks=526028/191428, in_queue=717456, util=95.46% 2.82user 0.24system 0:30.44elapsed 10%CPU (0avgtext+0avgdata 0maxresident)k 0inputs+0outputs (0major+2392minor)pagefaults 0swaps