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] [9.1% done] [ 17540/ 2840 kb/s] [eta 00m:30s] Threads: 3: [mmm] [14.8% done] [ 15148/ 4088 kb/s] [eta 00m:23s] Threads: 3: [mmm] [18.5% done] [ 12320/ 5240 kb/s] [eta 00m:22s] Threads: 3: [mmm] [23.1% done] [ 13452/ 3724 kb/s] [eta 00m:20s] Threads: 3: [mmm] [25.9% done] [ 11072/ 4924 kb/s] [eta 00m:20s] Threads: 3: [mmm] [28.6% done] [ 8188/ 5508 kb/s] [eta 00m:20s] Threads: 3: [mmm] [31.0% done] [ 12248/ 3728 kb/s] [eta 00m:20s] Threads: 3: [mmm] [34.5% done] [ 10180/ 5056 kb/s] [eta 00m:19s] Threads: 3: [mmm] [37.9% done] [ 8984/ 4904 kb/s] [eta 00m:18s] Threads: 3: [mmm] [41.4% done] [ 11832/ 2196 kb/s] [eta 00m:17s] Threads: 3: [mmm] [43.3% done] [ 9384/ 3212 kb/s] [eta 00m:17s] Threads: 3: [mmm] [46.7% done] [ 10660/ 2968 kb/s] [eta 00m:16s] Threads: 3: [mmm] [50.0% done] [ 6620/ 5832 kb/s] [eta 00m:15s] Threads: 3: [mmm] [51.6% done] [ 7251/ 3711 kb/s] [eta 00m:15s] Threads: 3: [mmm] [54.8% done] [ 7536/ 3788 kb/s] [eta 00m:14s] Threads: 3: [mmm] [58.1% done] [ 6704/ 3496 kb/s] [eta 00m:13s] Threads: 3: [mmm] [59.4% done] [ 5512/ 4420 kb/s] [eta 00m:13s] Threads: 3: [mmm] [62.5% done] [ 6712/ 1980 kb/s] [eta 00m:12s] Threads: 3: [mmm] [63.6% done] [ 7956/ 1192 kb/s] [eta 00m:12s] Threads: 3: [VVV] [68.8% done] [ 10172/ 936 kb/s] [eta 00m:10s] Threads: 3: [VVV] [71.9% done] [ 18380/ 0 kb/s] [eta 00m:09s] Threads: 3: [VVV] [75.0% done] [ 17380/ 0 kb/s] [eta 00m:08s] Threads: 3: [VVV] [80.6% done] [ 19000/ 0 kb/s] [eta 00m:06s] Threads: 2: [EVV] [83.9% done] [ 17768/ 0 kb/s] [eta 00m:05s] fio: (groupid=0): err= 0: pid=12326 read : io=100MiB, bw=3,964KiB/s, runt= 26450msec slat (msec): min= 0, max= 4206, avg=575.35, stdev=1117.80 clat (msec): min= 3, max= 676, avg=91.32, stdev=86.17 bw (KiB/s) : min= 146, max=11357, per=36.13%, avg=4148.38, stdev=2629.72 write: io=25,404KiB, bw=1,181KiB/s, runt= 22026msec slat (msec): min= 0, max= 3, avg= 0.07, stdev= 0.35 clat (msec): min= 0, max= 917, avg=109.26, stdev=136.18 bw (KiB/s) : min= 0, max= 4905, per=45.27%, avg=1936.70, stdev=1672.20 cpu : usr=3.55%, sys=0.26%, ctx=1856 IO depths : 1=0.1%, 2=0.2%, 4=10.9%, 8=88.8%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=0.3%, 4=0.5%, 10=3.7%, 20=15.0%, 50=23.4%, 100=20.9% lat (msec): 250=29.0%, 500=6.4%, 750=0.3%, 1000=0.3%, >=2000=0.0% fio: (groupid=0): err= 0: pid=12327 read : io=100MiB, bw=3,827KiB/s, runt= 27398msec slat (msec): min= 0, max= 6630, avg=1395.14, stdev=2169.35 clat (msec): min= 3, max= 543, avg=84.75, stdev=71.49 bw (KiB/s) : min= 3, max=10386, per=36.86%, avg=4232.28, stdev=2754.56 write: io=34,292KiB, bw=1,681KiB/s, runt= 20880msec slat (msec): min= 0, max= 10, avg= 0.10, stdev= 0.64 clat (msec): min= 0, max= 1024, avg=112.09, stdev=126.43 bw (KiB/s) : min= 0, max= 6542, per=56.47%, avg=2416.00, stdev=1962.75 cpu : usr=3.43%, sys=0.23%, ctx=1847 IO depths : 1=0.2%, 2=0.3%, 4=14.1%, 8=85.4%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=0.8%, 4=0.3%, 10=3.9%, 20=9.7%, 50=24.3%, 100=26.9% lat (msec): 250=28.7%, 500=4.8%, 750=0.4%, 1000=0.1%, >=2000=0.0% fio: (groupid=0): err= 0: pid=12328 read : io=100MiB, bw=3,835KiB/s, runt= 27337msec slat (msec): min= 0, max= 5893, avg=964.88, stdev=1769.80 clat (msec): min= 2, max= 569, avg=94.91, stdev=78.46 bw (KiB/s) : min= 10, max=10345, per=35.47%, avg=4072.72, stdev=2689.82 write: io=32,332KiB, bw=1,545KiB/s, runt= 21428msec slat (msec): min= 0, max= 5, avg= 0.18, stdev= 0.65 clat (msec): min= 0, max= 982, avg=122.25, stdev=129.33 bw (KiB/s) : min= 0, max= 8729, per=62.98%, avg=2694.38, stdev=2409.09 cpu : usr=3.26%, sys=0.18%, ctx=1796 IO depths : 1=0.1%, 2=0.2%, 4=10.3%, 8=89.4%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=0.5%, 4=0.3%, 10=2.3%, 20=8.3%, 50=22.0%, 100=27.4% lat (msec): 250=32.9%, 500=5.6%, 750=0.4%, 1000=0.2%, >=2000=0.0% Run status group 0 (all jobs): READ: io=300MiB, aggrb=11,481KiB/s, minb=3,827KiB/s, maxb=3,964KiB/s, mint=26450msec, maxt=27398msec WRITE: io=92,028KiB, aggrb=4,278KiB/s, minb=1,181KiB/s, maxb=1,681KiB/s, mint=26450msec, maxt=27398msec Disk stats (read/write): sda: ios=5144/1635, merge=1377/332, ticks=483712/225852, in_queue=709572, util=99.46% 2.81user 0.21system 0:27.73elapsed 10%CPU (0avgtext+0avgdata 0maxresident)k 0inputs+0outputs (0major+2383minor)pagefaults 0swaps