fio: (g=0): rw=randrw, bs=4K-256K/4K-256K, ioengine=sync, iodepth=1 ... fio: (g=0): rw=randrw, bs=4K-256K/4K-256K, ioengine=sync, iodepth=1 Starting 3 threads Threads: 3 Threads: 3 Threads: 3: [mmm] [13.6% done] [ 420/ 21508 kb/s] [eta 00m:19s] Threads: 3: [mmm] [18.2% done] [ 13868/ 6416 kb/s] [eta 00m:18s] Threads: 3: [mmm] [21.7% done] [ 14228/ 4580 kb/s] [eta 00m:18s] Threads: 3: [mmm] [26.1% done] [ 12191/ 5481 kb/s] [eta 00m:17s] Threads: 3: [mmm] [30.4% done] [ 12780/ 5344 kb/s] [eta 00m:16s] Threads: 3: [mmm] [32.0% done] [ 9672/ 1460 kb/s] [eta 00m:17s] Threads: 3: [mmm] [36.0% done] [ 10664/ 3596 kb/s] [eta 00m:16s] Threads: 3: [mmm] [38.5% done] [ 11196/ 3760 kb/s] [eta 00m:16s] Threads: 3: [mmm] [42.3% done] [ 11492/ 2412 kb/s] [eta 00m:15s] Threads: 3: [mmm] [46.2% done] [ 4424/ 10240 kb/s] [eta 00m:14s] Threads: 3: [mmm] [48.1% done] [ 5584/ 8260 kb/s] [eta 00m:14s] Threads: 3: [mmm] [50.0% done] [ 7176/ 4892 kb/s] [eta 00m:14s] Threads: 3: [mmm] [53.6% done] [ 6552/ 4580 kb/s] [eta 00m:13s] Threads: 3: [mmm] [55.2% done] [ 4864/ 5632 kb/s] [eta 00m:13s] Threads: 3: [mmm] [58.6% done] [ 2472/ 8192 kb/s] [eta 00m:12s] Threads: 3: [mmm] [60.0% done] [ 3100/ 5904 kb/s] [eta 00m:12s] Threads: 3: [mmm] [61.3% done] [ 6600/ 1268 kb/s] [eta 00m:12s] Threads: 3: [mmm] [62.5% done] [ 5572/ 1436 kb/s] [eta 00m:12s] Threads: 3: [mVm] [63.6% done] [ 7728/ 3364 kb/s] [eta 00m:12s] Threads: 3: [mVm] [64.7% done] [ 20584/ 176 kb/s] [eta 00m:12s] Threads: 3: [mVm] [63.9% done] [ 17620/ 404 kb/s] [eta 00m:13s] Threads: 2: [m_V] [64.9% done] [ 8024/ 4500 kb/s] [eta 00m:13s] Threads: 2: [m_V] [64.1% done] [ 18576/ 72 kb/s] [eta 00m:14s] Threads: 1: [m__] [66.7% done] [ 14036/ 3200 kb/s] [eta 00m:13s] Threads: 1: [V__] [79.4% done] [ 17436/ 1225 kb/s] [eta 00m:07s] Threads: 1: [V__] [93.3% done] [ 22690/ 0 kb/s] [eta 00m:02s] fio: (groupid=0): err= 0: pid=27296 read : io=100MiB, bw=3,625KiB/s, runt= 28920msec clat (msec): min= 0, max= 282, avg=10.64, stdev=19.60 bw (KiB/s) : min= 7, max=22454, per=40.26%, avg=4379.46, stdev=5677.66 write: io=43,236KiB, bw=1,646KiB/s, runt= 26896msec clat (msec): min= 0, max= 185, avg=12.98, stdev=29.94 bw (KiB/s) : min= 0, max= 8364, per=55.73%, avg=2671.04, stdev=2730.17 cpu : usr=3.53%, sys=0.40%, ctx=2372 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=42.9%, 4=8.0%, 10=18.2%, 20=14.8%, 50=10.9%, 100=2.9% lat (msec): 250=2.2%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0% fio: (groupid=0): err= 0: pid=27297 read : io=100MiB, bw=4,422KiB/s, runt= 23710msec clat (msec): min= 0, max= 265, avg= 8.03, stdev=11.53 bw (KiB/s) : min= 11, max=21571, per=48.39%, avg=5263.06, stdev=5544.91 write: io=44,580KiB, bw=2,221KiB/s, runt= 20552msec clat (msec): min= 0, max= 212, avg= 9.27, stdev=23.85 bw (KiB/s) : min= 0, max= 9822, per=64.77%, avg=3104.20, stdev=2878.35 cpu : usr=4.13%, sys=0.46%, ctx=2513 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=45.5%, 4=6.8%, 10=20.0%, 20=15.6%, 50=9.8%, 100=1.7% lat (msec): 250=0.5%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0% fio: (groupid=0): err= 0: pid=27298 read : io=100MiB, bw=3,967KiB/s, runt= 26428msec clat (msec): min= 0, max= 262, avg=10.28, stdev=15.37 bw (KiB/s) : min= 7, max=20414, per=43.24%, avg=4703.15, stdev=5032.55 write: io=38,080KiB, bw=1,603KiB/s, runt= 24315msec clat (msec): min= 0, max= 214, avg=10.99, stdev=27.73 bw (KiB/s) : min= 0, max= 7321, per=56.26%, avg=2696.63, stdev=2541.48 cpu : usr=3.33%, sys=0.36%, ctx=2338 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=37.8%, 4=7.1%, 10=22.8%, 20=18.0%, 50=10.7%, 100=2.0% lat (msec): 250=1.4%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0% Run status group 0 (all jobs): READ: io=300MiB, aggrb=10,877KiB/s, minb=3,625KiB/s, maxb=4,422KiB/s, mint=23710msec, maxt=28920msec WRITE: io=123MiB, aggrb=4,793KiB/s, minb=1,603KiB/s, maxb=2,221KiB/s, mint=23710msec, maxt=28920msec Disk stats (read/write): sda: ios=5070/2625, merge=1096/196, ticks=49940/61652, in_queue=111596, util=98.36% 2.88user 0.37system 0:29.25elapsed 11%CPU (0avgtext+0avgdata 0maxresident)k 0inputs+0outputs (0major+1069minor)pagefaults 0swaps