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] [11.1% done] [ 6804/ 10736 kb/s] [eta 00m:24s] Threads: 3: [mmm] [16.0% done] [ 17468/ 2980 kb/s] [eta 00m:21s] Threads: 3: [mmm] [19.2% done] [ 12520/ 5828 kb/s] [eta 00m:21s] Threads: 3: [mmm] [23.1% done] [ 7512/ 9772 kb/s] [eta 00m:20s] Threads: 3: [mmm] [28.0% done] [ 3844/ 12460 kb/s] [eta 00m:18s] Threads: 3: [mmm] [29.6% done] [ 5100/ 10128 kb/s] [eta 00m:19s] Threads: 3: [mmm] [32.1% done] [ 10668/ 5664 kb/s] [eta 00m:19s] Threads: 3: [mmm] [34.5% done] [ 13168/ 2264 kb/s] [eta 00m:19s] Threads: 3: [mmm] [39.3% done] [ 8552/ 7464 kb/s] [eta 00m:17s] Threads: 3: [mmm] [42.9% done] [ 6560/ 7768 kb/s] [eta 00m:16s] Threads: 3: [mmm] [46.4% done] [ 8648/ 4268 kb/s] [eta 00m:15s] Threads: 3: [mmm] [48.3% done] [ 5992/ 6756 kb/s] [eta 00m:15s] Threads: 3: [mmm] [51.7% done] [ 10152/ 1676 kb/s] [eta 00m:14s] Threads: 3: [mmm] [53.3% done] [ 11992/ 180 kb/s] [eta 00m:14s] Threads: 3: [mmm] [54.8% done] [ 4568/ 4312 kb/s] [eta 00m:14s] Threads: 3: [mmm] [58.1% done] [ 7044/ 1936 kb/s] [eta 00m:13s] Threads: 3: [mmm] [59.4% done] [ 7880/ 0 kb/s] [eta 00m:13s] Threads: 3: [mmm] [62.5% done] [ 6936/ 1376 kb/s] [eta 00m:12s] Threads: 3: [mmm] [63.6% done] [ 3248/ 4264 kb/s] [eta 00m:12s] Threads: 3: [mmV] [64.7% done] [ 2540/ 4676 kb/s] [eta 00m:12s] Threads: 3: [mVV] [67.6% done] [ 13100/ 280 kb/s] [eta 00m:11s] Threads: 3: [VVV] [68.6% done] [ 15808/ 304 kb/s] [eta 00m:11s] Threads: 3: [VVV] [73.5% done] [ 16856/ 0 kb/s] [eta 00m:09s] Threads: 3: [VVV] [76.5% done] [ 15480/ 0 kb/s] [eta 00m:08s] Threads: 3: [VVV] [79.4% done] [ 15951/ 0 kb/s] [eta 00m:07s] Threads: 3: [VVV] [82.4% done] [ 16296/ 0 kb/s] [eta 00m:06s] Threads: 2: [VV_] [87.9% done] [ 15496/ 0 kb/s] [eta 00m:04s] fio: (groupid=0): err= 0: pid=6359 read : io=100MiB, bw=3,446KiB/s, runt= 30425msec slat (msec): min= 0, max= 6829, avg=1533.55, stdev=2306.79 clat (msec): min= 0, max= 701, avg=93.13, stdev=114.05 bw (KiB/s) : min= 6, max= 8345, per=35.65%, avg=3686.25, stdev=2483.90 write: io=38,312KiB, bw=1,662KiB/s, runt= 23603msec slat (msec): min= 0, max= 102, avg= 0.19, stdev= 4.02 clat (msec): min= 0, max= 862, avg=114.37, stdev=166.44 bw (KiB/s) : min= 0, max= 8763, per=46.03%, avg=2418.31, stdev=2288.17 cpu : usr=3.31%, sys=0.20%, ctx=1849 IO depths : 1=0.2%, 2=0.8%, 4=15.4%, 8=83.6%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=2.4%, 4=0.8%, 10=7.4%, 20=18.7%, 50=33.1%, 100=7.2% lat (msec): 250=14.1%, 500=14.7%, 750=1.0%, 1000=0.4%, >=2000=0.0% fio: (groupid=0): err= 0: pid=6360 read : io=100MiB, bw=3,470KiB/s, runt= 30213msec slat (msec): min= 0, max= 8112, avg=1745.21, stdev=2620.80 clat (msec): min= 0, max= 689, avg=94.50, stdev=109.48 bw (KiB/s) : min= 53, max=11385, per=41.43%, avg=4283.10, stdev=3163.23 write: io=48,084KiB, bw=2,215KiB/s, runt= 22225msec slat (msec): min= 0, max= 11, avg= 0.13, stdev= 0.90 clat (msec): min= 0, max= 833, avg=119.91, stdev=157.62 bw (KiB/s) : min= 0, max= 7514, per=61.50%, avg=3231.08, stdev=2568.12 cpu : usr=3.35%, sys=0.21%, ctx=1793 IO depths : 1=0.1%, 2=0.3%, 4=16.2%, 8=83.3%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=1.7%, 4=1.3%, 10=6.1%, 20=17.1%, 50=33.3%, 100=7.6% lat (msec): 250=16.3%, 500=14.9%, 750=1.4%, 1000=0.1%, >=2000=0.0% fio: (groupid=0): err= 0: pid=6361 read : io=100MiB, bw=3,624KiB/s, runt= 28933msec slat (msec): min= 0, max= 7761, avg=1381.06, stdev=2289.33 clat (msec): min= 0, max= 504, avg=90.18, stdev=100.24 bw (KiB/s) : min= 20, max=10726, per=41.14%, avg=4253.44, stdev=2673.33 write: io=34,728KiB, bw=1,634KiB/s, runt= 21753msec slat (msec): min= 0, max= 10, avg= 0.13, stdev= 0.81 clat (msec): min= 0, max= 904, avg=112.93, stdev=159.15 bw (KiB/s) : min= 0, max= 8402, per=49.47%, avg=2599.10, stdev=2395.19 cpu : usr=2.83%, sys=0.25%, ctx=1879 IO depths : 1=0.2%, 2=0.3%, 4=14.2%, 8=85.3%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=1.7%, 4=1.7%, 10=7.0%, 20=17.7%, 50=32.8%, 100=7.8% lat (msec): 250=16.4%, 500=13.9%, 750=0.8%, 1000=0.2%, >=2000=0.0% Run status group 0 (all jobs): READ: io=300MiB, aggrb=10,339KiB/s, minb=3,446KiB/s, maxb=3,624KiB/s, mint=28933msec, maxt=30425msec WRITE: io=118MiB, aggrb=5,254KiB/s, minb=1,634KiB/s, maxb=2,215KiB/s, mint=28933msec, maxt=30425msec Disk stats (read/write): sda: ios=4937/2078, merge=1747/420, ticks=487328/253656, in_queue=740992, util=99.42% 2.91user 0.23system 0:30.70elapsed 10%CPU (0avgtext+0avgdata 0maxresident)k 0inputs+0outputs (0major+2404minor)pagefaults 0swaps