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: [mFF] [50.0% done] [ 4868/ 46936 kb/s] [eta 00m:03s] Threads: 3: [FFF] [100.0% done] [ 0/ 29232 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] [66.7% done] [ 0/ 0 kb/s] [eta 00m:07s] Threads: 3: [VVV] [68.2% done] [ 17164/ 0 kb/s] [eta 00m:07s] Threads: 3: [VVV] [72.7% done] [ 32296/ 0 kb/s] [eta 00m:06s] Threads: 3: [VVV] [73.9% done] [ 22444/ 0 kb/s] [eta 00m:06s] Threads: 3: [VVV] [78.3% done] [ 29072/ 0 kb/s] [eta 00m:05s] Threads: 3: [VVV] [86.4% done] [ 38436/ 0 kb/s] [eta 00m:03s] Threads: 3: [VVV] [90.9% done] [ 32712/ 0 kb/s] [eta 00m:02s] Threads: 3: [VVV] [100.0% done] [ 32119/ 0 kb/s] [eta 00m:00s] Threads: 3: [VVV] [100.0% done] [ 36396/ 0 kb/s] [eta 00m:00s] Threads: 1: [V__] [100.0% done] [ 30796/ 0 kb/s] [eta 00m:00s] fio: (groupid=0): err= 0: pid=10226 read : io=100MiB, bw=4,412KiB/s, runt= 23764msec slat (msec): min= 60, max=20568, avg=16256.57, stdev=5258.29 clat (msec): min= 0, max= 0, avg= 0.00, stdev= 0.00 bw (KiB/s) : min= 7, max=16634, per=61.16%, avg=8096.17, stdev=4788.17 write: io=90,052KiB, bw=6,540KiB/s, runt= 14098msec slat (msec): min= 0, max= 118, avg= 2.01, stdev= 4.75 clat (msec): min= 0, max= 0, avg= 0.00, stdev= 0.00 bw (KiB/s) : min= 0, max=91866, per=148.57%, avg=30673.33, stdev=52994.46 cpu : usr=5.23%, sys=1.40%, ctx=964 IO depths : 1=12.6%, 2=25.0%, 4=50.0%, 8=12.5%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=99.9%, 4=0.0%, 10=0.0%, 20=0.0%, 50=0.0%, 100=0.0% lat (msec): 250=0.0%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0% fio: (groupid=0): err= 0: pid=10227 read : io=100MiB, bw=4,611KiB/s, runt= 22738msec slat (msec): min= 14, max=21204, avg=17028.21, stdev=3282.41 clat (msec): min= 0, max= 0, avg= 0.00, stdev= 0.00 bw (KiB/s) : min= 3, max=22508, per=78.09%, avg=10336.81, stdev=6702.16 write: io=98MiB, bw=7,292KiB/s, runt= 14098msec slat (msec): min= 0, max= 18, avg= 2.07, stdev= 2.35 clat (msec): min= 0, max= 0, avg= 0.00, stdev= 0.00 bw (KiB/s) : min= 0, max=103609, per=168.45%, avg=34778.33, stdev=59610.21 cpu : usr=5.61%, sys=1.58%, ctx=818 IO depths : 1=12.6%, 2=25.0%, 4=49.9%, 8=12.5%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=99.9%, 4=0.0%, 10=0.0%, 20=0.0%, 50=0.0%, 100=0.0% lat (msec): 250=0.0%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0% fio: (groupid=0): err= 0: pid=10228 read : io=100MiB, bw=4,485KiB/s, runt= 23376msec slat (msec): min= 34, max=20770, avg=15540.79, stdev=4799.92 clat (msec): min= 0, max= 0, avg= 0.00, stdev= 0.00 bw (KiB/s) : min= 2, max=18504, per=69.55%, avg=9206.89, stdev=5368.95 write: io=93,792KiB, bw=6,816KiB/s, runt= 14090msec slat (msec): min= 0, max= 63, avg= 2.17, stdev= 4.50 clat (msec): min= 0, max= 0, avg= 0.00, stdev= 0.00 bw (KiB/s) : min= 0, max=97644, per=157.92%, avg=32603.33, stdev=56326.93 cpu : usr=5.13%, sys=1.75%, ctx=963 IO depths : 1=12.6%, 2=25.0%, 4=50.0%, 8=12.4%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=99.9%, 4=0.0%, 10=0.0%, 20=0.0%, 50=0.0%, 100=0.0% lat (msec): 250=0.0%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0% Run status group 0 (all jobs): READ: io=300MiB, aggrb=13,237KiB/s, minb=4,412KiB/s, maxb=4,611KiB/s, mint=22738msec, maxt=23764msec WRITE: io=278MiB, aggrb=20,646KiB/s, minb=6,540KiB/s, maxb=7,292KiB/s, mint=22738msec, maxt=23764msec Disk stats (read/write): sda: ios=3326/2070, merge=1318/68777, ticks=69276/1774604, in_queue=1852804, util=97.19% 3.76user 1.12system 0:24.42elapsed 20%CPU (0avgtext+0avgdata 0maxresident)k 0inputs+0outputs (0major+2420minor)pagefaults 0swaps