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] [ 10043/ 8184 kb/s] [eta 00m:23s] Threads: 3: [mmm] [16.7% done] [ 13355/ 7494 kb/s] [eta 00m:20s] Threads: 3: [mmm] [20.0% done] [ 8526/ 7333 kb/s] [eta 00m:20s] Threads: 3: [mmm] [24.0% done] [ 12796/ 5824 kb/s] [eta 00m:19s] Threads: 3: [mmm] [28.0% done] [ 3146/ 10267 kb/s] [eta 00m:18s] Threads: 3: [mmm] [30.8% done] [ 6524/ 9816 kb/s] [eta 00m:18s] Threads: 3: [mmm] [34.6% done] [ 11177/ 5297 kb/s] [eta 00m:17s] Threads: 3: [mmm] [37.0% done] [ 7640/ 8109 kb/s] [eta 00m:17s] Threads: 3: [mmm] [40.7% done] [ 6813/ 7490 kb/s] [eta 00m:16s] Threads: 3: [mmm] [42.9% done] [ 8625/ 5128 kb/s] [eta 00m:16s] Threads: 3: [mmm] [46.4% done] [ 7589/ 5895 kb/s] [eta 00m:15s] Threads: 3: [mmm] [48.3% done] [ 9791/ 2402 kb/s] [eta 00m:15s] Threads: 3: [mmm] [51.7% done] [ 9302/ 2225 kb/s] [eta 00m:14s] Threads: 3: [mmm] [55.2% done] [ 8510/ 3119 kb/s] [eta 00m:13s] Threads: 3: [mmm] [56.7% done] [ 10884/ 528 kb/s] [eta 00m:13s] Threads: 3: [mmm] [60.0% done] [ 8700/ 1996 kb/s] [eta 00m:12s] Threads: 3: [mmm] [61.3% done] [ 5192/ 4468 kb/s] [eta 00m:12s] Threads: 3: [mmm] [64.5% done] [ 8500/ 1148 kb/s] [eta 00m:11s] Threads: 3: [mmm] [65.6% done] [ 6520/ 1672 kb/s] [eta 00m:11s] Threads: 3: [VVV] [68.8% done] [ 8172/ 2592 kb/s] [eta 00m:10s] Threads: 3: [VVV] [71.9% done] [ 18240/ 0 kb/s] [eta 00m:09s] Threads: 3: [VVV] [75.0% done] [ 18776/ 0 kb/s] [eta 00m:08s] Threads: 3: [VVV] [80.6% done] [ 20084/ 0 kb/s] [eta 00m:06s] Threads: 3: [VVV] [83.9% done] [ 20672/ 0 kb/s] [eta 00m:05s] Threads: 3: [VVV] [84.4% done] [ 16296/ 0 kb/s] [eta 00m:05s] fio: (groupid=0): err= 0: pid=889 read : io=100MiB, bw=3,719KiB/s, runt= 28194msec slat (msec): min= 0, max= 6102, avg=1694.52, stdev=2255.09 clat (msec): min= 1, max= 494, avg=84.75, stdev=88.57 bw (KiB/s) : min= 42, max=14985, per=39.12%, avg=4318.32, stdev=3114.67 write: io=45,328KiB, bw=2,101KiB/s, runt= 22091msec slat (msec): min= 0, max= 3, avg= 0.08, stdev= 0.36 clat (msec): min= 0, max= 928, avg=103.80, stdev=123.39 bw (KiB/s) : min= 0, max= 9379, per=55.69%, avg=2965.88, stdev=2133.16 cpu : usr=3.67%, sys=0.34%, ctx=1844 IO depths : 1=0.1%, 2=0.3%, 4=17.5%, 8=82.1%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=1.7%, 4=0.8%, 10=5.4%, 20=15.3%, 50=22.8%, 100=21.9% lat (msec): 250=24.7%, 500=6.6%, 750=0.5%, 1000=0.2%, >=2000=0.0% fio: (groupid=0): err= 0: pid=890 read : io=100MiB, bw=3,679KiB/s, runt= 28498msec slat (msec): min= 0, max= 7308, avg=1077.41, stdev=1992.61 clat (msec): min= 0, max= 924, avg=97.45, stdev=103.34 bw (KiB/s) : min= 44, max= 8664, per=34.15%, avg=3769.07, stdev=2182.01 write: io=30,772KiB, bw=1,479KiB/s, runt= 21294msec slat (msec): min= 0, max= 3, avg= 0.03, stdev= 0.23 clat (msec): min= 0, max= 664, avg=108.23, stdev=99.06 bw (KiB/s) : min= 0, max= 6526, per=47.66%, avg=2538.43, stdev=2231.00 cpu : usr=3.28%, sys=0.35%, ctx=1828 IO depths : 1=0.2%, 2=0.4%, 4=11.3%, 8=88.0%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=0.2%, 4=0.3%, 10=3.1%, 20=10.5%, 50=22.3%, 100=28.8% lat (msec): 250=26.8%, 500=7.1%, 750=0.5%, 1000=0.3%, >=2000=0.0% fio: (groupid=0): err= 0: pid=891 read : io=100MiB, bw=3,693KiB/s, runt= 28389msec slat (msec): min= 0, max= 6827, avg=1048.62, stdev=1791.17 clat (msec): min= 0, max= 819, avg=92.01, stdev=93.90 bw (KiB/s) : min= 72, max=13065, per=39.66%, avg=4377.86, stdev=3138.43 write: io=38,800KiB, bw=1,848KiB/s, runt= 21491msec slat (msec): min= 0, max= 3, avg= 0.07, stdev= 0.33 clat (msec): min= 0, max= 981, avg=128.00, stdev=118.08 bw (KiB/s) : min= 0, max= 7731, per=61.14%, avg=3256.38, stdev=2424.37 cpu : usr=3.58%, sys=0.38%, ctx=1818 IO depths : 1=0.2%, 2=0.3%, 4=12.6%, 8=86.9%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=0.4%, 4=0.4%, 10=2.5%, 20=8.7%, 50=23.5%, 100=28.0% lat (msec): 250=29.7%, 500=5.8%, 750=0.4%, 1000=0.5%, >=2000=0.0% Run status group 0 (all jobs): READ: io=300MiB, aggrb=11,038KiB/s, minb=3,679KiB/s, maxb=3,719KiB/s, mint=28194msec, maxt=28498msec WRITE: io=112MiB, aggrb=5,326KiB/s, minb=1,479KiB/s, maxb=2,101KiB/s, mint=28194msec, maxt=28498msec Disk stats (read/write): sda: ios=5080/1952, merge=1728/641, ticks=504284/367028, in_queue=882828, util=99.56% 3.04user 0.32system 0:28.78elapsed 11%CPU (0avgtext+0avgdata 0maxresident)k 0inputs+0outputs (0major+2411minor)pagefaults 0swaps