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] [16.7% done] [ 12836/ 58512 kb/s] [eta 00m:15s] Threads: 3: [mFm] [20.0% done] [ 7828/ 58400 kb/s] [eta 00m:16s] Threads: 3: [FFm] [21.7% done] [ 3283/ 9813 kb/s] [eta 00m:18s] Threads: 3: [FFm] [60.0% done] [ 497/ 58183 kb/s] [eta 00m:04s] Threads: 3: [FFF] [100.0% done] [ 444/ 10736 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] [ 13992/ 0 kb/s] [eta 00m:06s] Threads: 3: [VVV] [71.4% done] [ 35832/ 0 kb/s] [eta 00m:06s] Threads: 3: [VVV] [80.0% done] [ 41456/ 0 kb/s] [eta 00m:04s] Threads: 3: [VVV] [94.4% done] [ 39124/ 0 kb/s] [eta 00m:01s] Threads: 3: [VVV] [100.0% done] [ 41260/ 0 kb/s] [eta 00m:00s] Threads: 3: [VVV] [100.0% done] [ 40220/ 0 kb/s] [eta 00m:00s] Threads: 1: [_V_] [100.0% done] [ 40908/ 0 kb/s] [eta 00m:00s] fio: (groupid=0): err= 0: pid=24941 read : io=100MiB, bw=5,161KiB/s, runt= 20314msec clat (msec): min= 0, max= 298, avg= 5.28, stdev=23.55 bw (KiB/s) : min= 9, max=21420, per=57.46%, avg=8794.45, stdev=6650.09 write: io=90,232KiB, bw=6,756KiB/s, runt= 13676msec clat (msec): min= 0, max= 126, avg= 0.19, stdev= 4.04 bw (KiB/s) : min= 0, max=37931, per=91.62%, avg=17922.00, stdev=19051.43 cpu : usr=6.01%, sys=1.58%, ctx=867 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=84.4%, 4=4.9%, 10=6.1%, 20=1.9%, 50=1.4%, 100=0.4% lat (msec): 250=0.8%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0% fio: (groupid=0): err= 0: pid=24942 read : io=100MiB, bw=5,101KiB/s, runt= 20553msec clat (msec): min= 0, max= 244, avg= 5.15, stdev=24.06 bw (KiB/s) : min= 3, max=18395, per=58.31%, avg=8925.06, stdev=6482.85 write: io=91,748KiB, bw=6,870KiB/s, runt= 13674msec clat (msec): min= 0, max= 21, avg= 0.02, stdev= 0.59 bw (KiB/s) : min= 0, max=36167, per=92.45%, avg=18083.50, stdev=25573.93 cpu : usr=6.09%, sys=1.62%, ctx=869 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=85.4%, 4=4.5%, 10=6.5%, 20=1.1%, 50=1.2%, 100=0.4% lat (msec): 250=0.8%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0% fio: (groupid=0): err= 0: pid=24943 read : io=100MiB, bw=5,274KiB/s, runt= 19881msec clat (msec): min= 0, max= 230, avg= 6.60, stdev=24.25 bw (KiB/s) : min= 1, max=19832, per=49.52%, avg=7578.57, stdev=5596.78 write: io=79,276KiB, bw=5,935KiB/s, runt= 13676msec clat (msec): min= 0, max= 44, avg= 0.28, stdev= 2.64 bw (KiB/s) : min= 0, max=118652, per=154.33%, avg=30188.25, stdev=58983.98 cpu : usr=5.45%, sys=1.85%, ctx=1011 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=80.2%, 4=5.4%, 10=7.1%, 20=2.9%, 50=2.9%, 100=0.5% lat (msec): 250=0.9%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0% Run status group 0 (all jobs): READ: io=300MiB, aggrb=15,305KiB/s, minb=5,101KiB/s, maxb=5,274KiB/s, mint=19881msec, maxt=20553msec WRITE: io=255MiB, aggrb=19,561KiB/s, minb=5,935KiB/s, maxb=6,870KiB/s, mint=19881msec, maxt=20553msec Disk stats (read/write): sda: ios=3297/1755, merge=1289/63559, ticks=42868/1485384, in_queue=1528252, util=98.94% 3.57user 1.03system 0:20.87elapsed 22%CPU (0avgtext+0avgdata 0maxresident)k 0inputs+0outputs (3major+1066minor)pagefaults 0swaps