fio: (g=0): rw=randrw, bs=4K-256K/4K-256K, ioengine=posixaio, iodepth=8 ... fio: (g=0): rw=randrw, bs=4K-256K/4K-256K, ioengine=posixaio, iodepth=8 Starting 3 threads Threads: 3 Threads: 3 Threads: 3: [FFm] [42.9% done] [ 4368/ 28868 kb/s] [eta 00m:04s] Threads: 3: [FFm] [40.0% done] [ 1568/ 0 kb/s] [eta 00m:06s] Threads: 3: [FFF] [100.0% done] [ 332/ 41464 kb/s] [eta 00m:00s] Threads: 3: [FFF] [100.0% done] [ 0/ 0 kb/s] [eta 00m:00s] Threads: 3: [FVF] [70.0% done] [ 0/ 0 kb/s] [eta 00m:03s] Threads: 3: [FVF] [72.7% done] [ 6780/ 0 kb/s] [eta 00m:03s] Threads: 3: [FVF] [75.0% done] [ 5860/ 0 kb/s] [eta 00m:03s] Threads: 3: [FVF] [90.9% done] [ 15016/ 0 kb/s] [eta 00m:01s] Threads: 3: [FVF] [91.7% done] [ 10104/ 0 kb/s] [eta 00m:01s] Threads: 3: [FVF] [100.0% done] [ 13464/ 0 kb/s] [eta 00m:00s] Threads: 3: [FVF] [100.0% done] [ 15896/ 0 kb/s] [eta 00m:00s] Threads: 3: [FVF] [100.0% done] [ 14069/ 0 kb/s] [eta 00m:00s] Threads: 2: [V_V] [68.2% done] [ 17844/ 0 kb/s] [eta 00m:07s] Threads: 2: [V_V] [72.7% done] [ 37456/ 0 kb/s] [eta 00m:06s] Threads: 2: [V_V] [89.5% done] [ 43156/ 0 kb/s] [eta 00m:02s] Threads: 2: [V_V] [100.0% done] [ 40603/ 0 kb/s] [eta 00m:00s] Threads: 1: [__V] [100.0% done] [ 41924/ 0 kb/s] [eta 00m:00s] fio: (groupid=0): err= 0: pid=26861 read : io=100MiB, bw=5,390KiB/s, runt= 19453msec slat (msec): min= 0, max= 0, avg= 0.00, stdev= 0.00 clat (msec): min= 0, max= 215, avg=27.72, stdev=38.02 bw (KiB/s) : min= 7, max=32597, per=90.17%, avg=14213.92, stdev=11192.28 write: io=91,612KiB, bw=6,093KiB/s, runt= 15396msec slat (msec): min= 0, max= 0, avg= 0.00, stdev= 0.00 clat (msec): min= 0, max= 67, avg= 0.46, stdev= 2.86 bw (KiB/s) : min= 0, max=24714, per=66.88%, avg=12357.00, stdev=17475.44 cpu : usr=3.82%, sys=1.97%, ctx=6663 IO depths : 1=1.5%, 2=54.0%, 4=29.8%, 8=14.7%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=47.5%, 4=0.6%, 10=20.9%, 20=16.3%, 50=4.9%, 100=4.5% lat (msec): 250=5.2%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0% fio: (groupid=0): err= 0: pid=26862 read : io=100MiB, bw=6,828KiB/s, runt= 15356msec slat (msec): min= 0, max= 0, avg= 0.00, stdev= 0.00 clat (msec): min= 0, max= 316, avg=40.94, stdev=49.42 bw (KiB/s) : min= 37, max=21227, per=69.50%, avg=10956.06, stdev=5571.25 write: io=98,932KiB, bw=14,196KiB/s, runt= 7136msec slat (msec): min= 0, max= 0, avg= 0.00, stdev= 0.00 clat (msec): min= 0, max= 184, avg= 0.53, stdev= 6.14 bw (KiB/s) : min= 0, max=126001, per=340.99%, avg=63000.50, stdev=89096.16 cpu : usr=5.29%, sys=3.20%, ctx=5537 IO depths : 1=0.9%, 2=54.2%, 4=31.1%, 8=13.7%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=49.1%, 4=1.3%, 10=12.6%, 20=11.9%, 50=10.9%, 100=8.3% lat (msec): 250=5.5%, 500=0.3%, 750=0.0%, 1000=0.0%, >=2000=0.0% fio: (groupid=0): err= 0: pid=26863 read : io=100MiB, bw=5,254KiB/s, runt= 19954msec slat (msec): min= 0, max= 0, avg= 0.00, stdev= 0.00 clat (msec): min= 0, max= 889, avg=39.23, stdev=75.51 bw (KiB/s) : min= 8, max=29057, per=66.98%, avg=10558.53, stdev=9997.59 write: io=87,256KiB, bw=5,804KiB/s, runt= 15392msec slat (msec): min= 0, max= 0, avg= 0.00, stdev= 0.00 clat (msec): min= 0, max= 719, avg= 2.83, stdev=35.35 bw (KiB/s) : min= 0, max=12292, per=33.26%, avg=6146.00, stdev=8691.76 cpu : usr=3.49%, sys=2.25%, ctx=6626 IO depths : 1=1.3%, 2=52.7%, 4=30.4%, 8=15.5%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=47.4%, 4=0.9%, 10=20.1%, 20=16.7%, 50=3.4%, 100=3.4% lat (msec): 250=6.7%, 500=0.8%, 750=0.4%, 1000=0.1%, >=2000=0.0% Run status group 0 (all jobs): READ: io=300MiB, aggrb=15,764KiB/s, minb=5,254KiB/s, maxb=6,828KiB/s, mint=15356msec, maxt=19954msec WRITE: io=271MiB, aggrb=18,476KiB/s, minb=5,804KiB/s, maxb=14,196KiB/s, mint=15356msec, maxt=19954msec Disk stats (read/write): sda: ios=3009/1549, merge=1121/67853, ticks=36944/1817748, in_queue=1867652, util=98.71% 2.29user 1.41system 0:20.29elapsed 18%CPU (0avgtext+0avgdata 0maxresident)k 0inputs+0outputs (0major+2453minor)pagefaults 0swaps