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: [FFF] [100.0% done] [ 513/106300 kb/s] [eta 00m:00s] Threads: 3: [FFF] [100.0% done] [ 0/ 0 kb/s] [eta 00m:00s] Threads: 3: [FFF] [100.0% done] [ 0/ 0 kb/s] [eta 00m:00s] Threads: 3: [FFF] [100.0% done] [ 0/ 0 kb/s] [eta 00m:00s] Threads: 3: [FFF] [100.0% done] [ 0/ 0 kb/s] [eta 00m:00s] Threads: 3: [FFF] [100.0% done] [ 0/ 0 kb/s] [eta 00m:00s] Threads: 3: [FFF] [100.0% done] [ 0/ 0 kb/s] [eta 00m:00s] Threads: 3: [FFF] [100.0% done] [ 0/ 0 kb/s] [eta 00m:00s] Threads: 3: [FFF] [100.0% done] [ 0/ 0 kb/s] [eta 00m:00s] Threads: 3: [FFF] [100.0% done] [ 0/ 0 kb/s] [eta 00m:00s] Threads: 3: [FFF] [100.0% done] [ 0/ 0 kb/s] [eta 00m:00s] Threads: 3: [VVV] [70.0% done] [ 4848/ 0 kb/s] [eta 00m:06s] Threads: 3: [VVV] [71.4% done] [ 25680/ 0 kb/s] [eta 00m:06s] Threads: 3: [VVV] [72.7% done] [ 30504/ 0 kb/s] [eta 00m:06s] Threads: 3: [VVV] [85.0% done] [ 35884/ 0 kb/s] [eta 00m:03s] Threads: 3: [VVV] [90.0% done] [ 31100/ 0 kb/s] [eta 00m:02s] Threads: 3: [VVV] [100.0% done] [ 36908/ 0 kb/s] [eta 00m:00s] Threads: 3: [VVV] [100.0% done] [ 36948/ 0 kb/s] [eta 00m:00s] Threads: 3: [VVV] [100.0% done] [ 30048/ 0 kb/s] [eta 00m:00s] Threads: 3: [VVV] [100.0% done] [ 34552/ 0 kb/s] [eta 00m:00s] fio: (groupid=0): err= 0: pid=19776 read : io=100MiB, bw=4,510KiB/s, runt= 23245msec slat (msec): min= 0, max= 0, avg= 0.00, stdev= 0.00 clat (msec): min= 0, max= 695, avg=50.71, stdev=91.32 bw (KiB/s) : min= 7, max=17863, per=68.26%, avg=9137.40, stdev=6227.35 write: io=97,036KiB, bw=7,136KiB/s, runt= 13924msec slat (msec): min= 0, max= 1, avg= 0.00, stdev= 0.03 clat (msec): min= 0, max= 359, avg= 1.36, stdev=16.91 bw (KiB/s) : min= 0, max=125968, per=228.14%, avg=48898.75, stdev=60929.80 cpu : usr=4.41%, sys=2.32%, ctx=5045 IO depths : 1=2.8%, 2=58.2%, 4=29.0%, 8=10.0%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=45.6%, 4=4.8%, 10=19.1%, 20=14.0%, 50=5.1%, 100=1.7% lat (msec): 250=7.1%, 500=2.2%, 750=0.3%, 1000=0.0%, >=2000=0.0% fio: (groupid=0): err= 0: pid=19777 read : io=100MiB, bw=4,518KiB/s, runt= 23205msec slat (msec): min= 0, max= 0, avg= 0.00, stdev= 0.00 clat (msec): min= 0, max= 757, avg=47.69, stdev=88.06 bw (KiB/s) : min= 6, max=21209, per=63.32%, avg=8476.43, stdev=6901.43 write: io=98,328KiB, bw=7,218KiB/s, runt= 13948msec slat (msec): min= 0, max= 1, avg= 0.00, stdev= 0.02 clat (msec): min= 0, max= 183, avg= 1.14, stdev= 9.86 bw (KiB/s) : min= 0, max=31344, per=94.07%, avg=20162.00, stdev=17495.48 cpu : usr=4.24%, sys=2.03%, ctx=5109 IO depths : 1=2.5%, 2=56.9%, 4=29.9%, 8=10.7%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=46.9%, 4=3.4%, 10=17.2%, 20=15.2%, 50=5.7%, 100=2.8% lat (msec): 250=6.7%, 500=1.5%, 750=0.3%, 1000=0.0%, >=2000=0.0% fio: (groupid=0): err= 0: pid=19778 read : io=100MiB, bw=4,462KiB/s, runt= 23498msec slat (msec): min= 0, max= 0, avg= 0.00, stdev= 0.00 clat (msec): min= 0, max= 1079, avg=51.87, stdev=101.47 bw (KiB/s) : min= 5, max=19878, per=65.43%, avg=8758.55, stdev=6474.68 write: io=96,600KiB, bw=7,100KiB/s, runt= 13932msec slat (msec): min= 0, max= 0, avg= 0.00, stdev= 0.00 clat (msec): min= 0, max= 123, avg= 0.53, stdev= 4.44 bw (KiB/s) : min= 0, max=26327, per=61.41%, avg=13163.50, stdev=18616.00 cpu : usr=3.40%, sys=2.20%, ctx=5199 IO depths : 1=3.5%, 2=55.9%, 4=29.3%, 8=11.3%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=48.4%, 4=1.3%, 10=17.5%, 20=17.0%, 50=4.5%, 100=1.5% lat (msec): 250=7.6%, 500=1.5%, 750=0.2%, 1000=0.2%, >=2000=0.1% Run status group 0 (all jobs): READ: io=300MiB, aggrb=13,387KiB/s, minb=4,462KiB/s, maxb=4,518KiB/s, mint=23205msec, maxt=23498msec WRITE: io=285MiB, aggrb=21,434KiB/s, minb=7,100KiB/s, maxb=7,218KiB/s, mint=23205msec, maxt=23498msec Disk stats (read/write): sda: ios=3173/2153, merge=1434/70664, ticks=70480/1729760, in_queue=1800720, util=98.88% 2.85user 1.61system 0:23.84elapsed 18%CPU (0avgtext+0avgdata 0maxresident)k 0inputs+0outputs (0major+2475minor)pagefaults 0swaps