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] [ 14872/ 4608 kb/s] [eta 00m:23s] Threads: 3: [mmm] [16.7% done] [ 16252/ 3772 kb/s] [eta 00m:20s] Threads: 3: [mmm] [20.8% done] [ 9612/ 9436 kb/s] [eta 00m:19s] Threads: 3: [mmm] [24.0% done] [ 7752/ 9128 kb/s] [eta 00m:19s] Threads: 3: [mmm] [28.0% done] [ 9380/ 6940 kb/s] [eta 00m:18s] Threads: 3: [mmm] [30.8% done] [ 8620/ 6460 kb/s] [eta 00m:18s] Threads: 3: [mmm] [33.3% done] [ 6904/ 6896 kb/s] [eta 00m:18s] Threads: 3: [mmm] [38.5% done] [ 16120/ 308 kb/s] [eta 00m:16s] Threads: 3: [mmm] [40.7% done] [ 11620/ 3400 kb/s] [eta 00m:16s] Threads: 3: [mmm] [44.4% done] [ 11248/ 4376 kb/s] [eta 00m:15s] Threads: 3: [mmm] [46.4% done] [ 1684/ 11748 kb/s] [eta 00m:15s] Threads: 3: [mmm] [50.0% done] [ 7048/ 5124 kb/s] [eta 00m:14s] Threads: 3: [mmm] [51.7% done] [ 4228/ 8092 kb/s] [eta 00m:14s] Threads: 3: [mmm] [55.2% done] [ 5024/ 6120 kb/s] [eta 00m:13s] Threads: 3: [mmm] [58.6% done] [ 2872/ 6780 kb/s] [eta 00m:12s] Threads: 3: [mmm] [60.0% done] [ 3356/ 4984 kb/s] [eta 00m:12s] Threads: 3: [mmm] [61.3% done] [ 7380/ 1612 kb/s] [eta 00m:12s] Threads: 3: [mmm] [62.5% done] [ 7316/ 0 kb/s] [eta 00m:12s] Threads: 3: [mmm] [65.6% done] [ 4128/ 4428 kb/s] [eta 00m:11s] Threads: 3: [mmm] [66.7% done] [ 4372/ 2476 kb/s] [eta 00m:11s] Threads: 3: [VVV] [69.7% done] [ 10172/ 72 kb/s] [eta 00m:10s] Threads: 3: [VVV] [72.7% done] [ 16291/ 0 kb/s] [eta 00m:09s] Threads: 3: [VVV] [75.8% done] [ 17544/ 0 kb/s] [eta 00m:08s] Threads: 3: [VVV] [78.8% done] [ 18532/ 0 kb/s] [eta 00m:07s] Threads: 3: [VVV] [81.8% done] [ 16048/ 0 kb/s] [eta 00m:06s] Threads: 3: [VVV] [82.4% done] [ 15288/ 0 kb/s] [eta 00m:06s] Threads: 2: [V_V] [90.6% done] [ 18199/ 0 kb/s] [eta 00m:03s] fio: (groupid=0): err= 0: pid=5165 read : io=100MiB, bw=3,441KiB/s, runt= 30469msec slat (msec): min= 0, max= 7608, avg=2605.90, stdev=2778.13 clat (msec): min= 0, max= 830, avg=78.50, stdev=107.31 bw (KiB/s) : min= 22, max=11054, per=45.38%, avg=4685.45, stdev=3282.13 write: io=58,204KiB, bw=2,608KiB/s, runt= 22853msec slat (msec): min= 0, max= 10, avg= 0.15, stdev= 0.79 clat (msec): min= 0, max= 883, avg=109.07, stdev=146.10 bw (KiB/s) : min= 0, max= 9205, per=61.13%, avg=3421.03, stdev=2636.58 cpu : usr=3.61%, sys=0.32%, ctx=1730 IO depths : 1=0.1%, 2=1.3%, 4=25.4%, 8=73.2%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=2.7%, 4=1.8%, 10=8.6%, 20=24.7%, 50=28.6%, 100=6.0% lat (msec): 250=11.7%, 500=14.7%, 750=0.7%, 1000=0.3%, >=2000=0.0% fio: (groupid=0): err= 0: pid=5166 read : io=100MiB, bw=3,581KiB/s, runt= 29274msec slat (msec): min= 0, max= 6535, avg=902.34, stdev=1759.35 clat (msec): min= 0, max= 652, avg=104.65, stdev=118.42 bw (KiB/s) : min= 170, max=10682, per=35.61%, avg=3676.38, stdev=2313.07 write: io=27,908KiB, bw=1,255KiB/s, runt= 22755msec slat (msec): min= 0, max= 2, avg= 0.04, stdev= 0.23 clat (msec): min= 0, max= 1100, avg=106.68, stdev=147.84 bw (KiB/s) : min= 0, max= 5905, per=39.23%, avg=2195.10, stdev=1846.43 cpu : usr=3.07%, sys=0.15%, ctx=1839 IO depths : 1=0.2%, 2=0.4%, 4=11.2%, 8=88.3%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=1.4%, 4=0.6%, 10=5.4%, 20=15.5%, 50=34.9%, 100=8.5% lat (msec): 250=15.7%, 500=16.8%, 750=0.8%, 1000=0.0%, >=2000=0.1% fio: (groupid=0): err= 0: pid=5167 read : io=100MiB, bw=3,481KiB/s, runt= 30119msec slat (msec): min= 0, max= 7838, avg=1471.74, stdev=2309.64 clat (msec): min= 0, max= 636, avg=101.71, stdev=115.30 bw (KiB/s) : min= 42, max= 9450, per=39.38%, avg=4065.45, stdev=2420.93 write: io=38,780KiB, bw=1,769KiB/s, runt= 22437msec slat (msec): min= 0, max= 6, avg= 0.05, stdev= 0.32 clat (msec): min= 0, max= 1099, avg=116.00, stdev=159.97 bw (KiB/s) : min= 0, max= 7981, per=49.05%, avg=2745.04, stdev=2629.40 cpu : usr=3.52%, sys=0.25%, ctx=1792 IO depths : 1=0.2%, 2=0.5%, 4=13.7%, 8=85.6%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=1.5%, 4=1.0%, 10=7.3%, 20=16.5%, 50=32.2%, 100=8.5% lat (msec): 250=14.7%, 500=17.2%, 750=0.9%, 1000=0.1%, >=2000=0.0% Run status group 0 (all jobs): READ: io=300MiB, aggrb=10,324KiB/s, minb=3,441KiB/s, maxb=3,581KiB/s, mint=29274msec, maxt=30469msec WRITE: io=122MiB, aggrb=5,596KiB/s, minb=1,255KiB/s, maxb=2,608KiB/s, mint=29274msec, maxt=30469msec Disk stats (read/write): sda: ios=4717/2303, merge=1721/442, ticks=490316/280496, in_queue=770812, util=99.50% 3.13user 0.28system 0:30.81elapsed 11%CPU (0avgtext+0avgdata 0maxresident)k 0inputs+0outputs (0major+2410minor)pagefaults 0swaps