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] [12.0% done] [ 3904/ 13668 kb/s] [eta 00m:22s] Threads: 3: [mmm] [16.0% done] [ 8100/ 11388 kb/s] [eta 00m:21s] Threads: 3: [mmm] [19.2% done] [ 6892/ 10868 kb/s] [eta 00m:21s] Threads: 3: [mmm] [22.2% done] [ 7216/ 9224 kb/s] [eta 00m:21s] Threads: 3: [mmm] [25.9% done] [ 10436/ 6880 kb/s] [eta 00m:20s] Threads: 3: [mmm] [29.6% done] [ 5772/ 8696 kb/s] [eta 00m:19s] Threads: 3: [mmm] [34.6% done] [ 7304/ 8376 kb/s] [eta 00m:17s] Threads: 3: [mmm] [37.0% done] [ 7832/ 8120 kb/s] [eta 00m:17s] Threads: 3: [mmm] [40.7% done] [ 13968/ 1344 kb/s] [eta 00m:16s] Threads: 3: [mmm] [44.4% done] [ 10356/ 3808 kb/s] [eta 00m:15s] Threads: 3: [mmm] [46.4% done] [ 10644/ 3420 kb/s] [eta 00m:15s] Threads: 3: [mmm] [50.0% done] [ 2672/ 9136 kb/s] [eta 00m:14s] Threads: 3: [mmm] [51.7% done] [ 3376/ 8468 kb/s] [eta 00m:14s] Threads: 3: [mmm] [55.2% done] [ 7516/ 4544 kb/s] [eta 00m:13s] Threads: 3: [mmm] [58.6% done] [ 11724/ 924 kb/s] [eta 00m:12s] Threads: 3: [mmm] [60.0% done] [ 10708/ 0 kb/s] [eta 00m:12s] Threads: 3: [mmm] [63.3% done] [ 9384/ 848 kb/s] [eta 00m:11s] Threads: 3: [mmm] [64.5% done] [ 6420/ 2900 kb/s] [eta 00m:11s] Threads: 3: [mVm] [65.6% done] [ 12820/ 1516 kb/s] [eta 00m:11s] Threads: 3: [mVm] [64.7% done] [ 12392/ 2660 kb/s] [eta 00m:12s] Threads: 3: [mVm] [65.7% done] [ 18464/ 600 kb/s] [eta 00m:12s] Threads: 2: [V_V] [68.6% done] [ 9872/ 2364 kb/s] [eta 00m:11s] Threads: 2: [V_V] [75.8% done] [ 20708/ 0 kb/s] [eta 00m:08s] Threads: 2: [V_V] [78.8% done] [ 20040/ 0 kb/s] [eta 00m:07s] Threads: 2: [V_V] [87.1% done] [ 20968/ 0 kb/s] [eta 00m:04s] Threads: 2: [V_V] [93.3% done] [ 18808/ 0 kb/s] [eta 00m:02s] fio: (groupid=0): err= 0: pid=14145 read : io=100MiB, bw=3,568KiB/s, runt= 29386msec slat (msec): min= 0, max= 5675, avg=1653.77, stdev=1991.61 clat (msec): min= 0, max= 517, avg=79.77, stdev=78.58 bw (KiB/s) : min= 51, max=14059, per=42.44%, avg=4542.88, stdev=3994.38 write: io=50,120KiB, bw=2,143KiB/s, runt= 23946msec slat (msec): min= 0, max= 4, avg= 0.06, stdev= 0.32 clat (msec): min= 0, max= 928, avg=117.18, stdev=128.31 bw (KiB/s) : min= 0, max= 9578, per=41.62%, avg=2584.15, stdev=2134.88 cpu : usr=3.53%, sys=0.26%, ctx=1888 IO depths : 1=0.1%, 2=0.2%, 4=17.2%, 8=82.6%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=1.0%, 4=0.5%, 10=6.2%, 20=13.7%, 50=22.0%, 100=21.3% lat (msec): 250=28.9%, 500=5.2%, 750=0.8%, 1000=0.2%, >=2000=0.0% fio: (groupid=0): err= 0: pid=14146 read : io=100MiB, bw=4,399KiB/s, runt= 23833msec slat (msec): min= 0, max= 3354, avg=488.42, stdev=921.31 clat (msec): min= 3, max= 422, avg=73.13, stdev=51.80 bw (KiB/s) : min= 22, max=18069, per=48.82%, avg=5225.86, stdev=4484.42 write: io=43,776KiB, bw=2,182KiB/s, runt= 20540msec slat (msec): min= 0, max= 11, avg= 0.25, stdev= 1.02 clat (msec): min= 0, max= 801, avg=139.74, stdev=120.96 bw (KiB/s) : min= 0, max= 9736, per=60.21%, avg=3738.50, stdev=2557.54 cpu : usr=3.81%, sys=0.22%, ctx=1845 IO depths : 1=0.1%, 2=0.2%, 4=10.4%, 8=89.2%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=0.9%, 4=0.4%, 10=2.1%, 20=8.0%, 50=25.3%, 100=30.3% lat (msec): 250=29.2%, 500=3.2%, 750=0.4%, 1000=0.0%, >=2000=0.0% fio: (groupid=0): err= 0: pid=14147 read : io=100MiB, bw=3,586KiB/s, runt= 29234msec slat (msec): min= 0, max= 6883, avg=1908.80, stdev=2310.70 clat (msec): min= 2, max= 452, avg=81.80, stdev=68.23 bw (KiB/s) : min= 17, max=15946, per=43.67%, avg=4674.70, stdev=3958.55 write: io=51,320KiB, bw=2,292KiB/s, runt= 22926msec slat (msec): min= 0, max= 15, avg= 0.14, stdev= 0.92 clat (msec): min= 0, max= 1036, avg=122.75, stdev=128.93 bw (KiB/s) : min= 0, max= 6400, per=45.87%, avg=2847.94, stdev=2145.67 cpu : usr=3.38%, sys=0.22%, ctx=1850 IO depths : 1=0.1%, 2=0.5%, 4=15.2%, 8=84.2%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=0.6%, 4=0.7%, 10=3.8%, 20=11.5%, 50=22.8%, 100=21.6% lat (msec): 250=33.7%, 500=4.6%, 750=0.4%, 1000=0.1%, >=2000=0.0% Run status group 0 (all jobs): READ: io=300MiB, aggrb=10,704KiB/s, minb=3,568KiB/s, maxb=4,399KiB/s, mint=23833msec, maxt=29386msec WRITE: io=142MiB, aggrb=6,209KiB/s, minb=2,143KiB/s, maxb=2,292KiB/s, mint=23833msec, maxt=29386msec Disk stats (read/write): sda: ios=4904/2389, merge=1516/586, ticks=398720/325360, in_queue=724088, util=99.52% 2.98user 0.20system 0:29.64elapsed 10%CPU (0avgtext+0avgdata 0maxresident)k 0inputs+0outputs (0major+2404minor)pagefaults 0swaps