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] [6.8% done] [ 840/ 22804 kb/s] [eta 00m:41s] Threads: 3: [mFF] [28.6% done] [ 2176/ 28760 kb/s] [eta 00m:10s] Threads: 3: [FFF] [100.0% done] [ 0/ 61220 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] [70.6% done] [ 19056/ 0 kb/s] [eta 00m:05s] Threads: 3: [VVV] [76.5% done] [ 43256/ 0 kb/s] [eta 00m:04s] Threads: 3: [VVV] [87.5% done] [ 44316/ 0 kb/s] [eta 00m:02s] Threads: 3: [VVV] [100.0% done] [ 44852/ 0 kb/s] [eta 00m:00s] Threads: 3: [VVV] [100.0% done] [ 43916/ 0 kb/s] [eta 00m:00s] Threads: 3: [VVV] [100.0% done] [ 45136/ 0 kb/s] [eta 00m:00s] Threads: 3: [VVV] [100.0% done] [ 41488/ 0 kb/s] [eta 00m:00s] fio: (groupid=0): err= 0: pid=22546 read : io=100MiB, bw=5,721KiB/s, runt= 18327msec slat (msec): min= 73, max=13839, avg=9952.65, stdev=3119.16 clat (msec): min= 0, max= 0, avg= 0.00, stdev= 0.00 bw (KiB/s) : min= 11, max=16097, per=53.57%, avg=9172.65, stdev=5920.75 write: io=89,980KiB, bw=8,009KiB/s, runt= 11504msec slat (msec): min= 0, max= 10, avg= 1.71, stdev= 1.80 clat (msec): min= 0, max= 0, avg= 0.00, stdev= 0.00 bw (KiB/s) : min= 0, max=115505, per=227.17%, avg=57752.50, stdev=81674.37 cpu : usr=6.66%, sys=1.86%, ctx=828 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=22547 read : io=100MiB, bw=5,707KiB/s, runt= 18372msec slat (msec): min= 49, max=16262, avg=12816.75, stdev=3168.83 clat (msec): min= 0, max= 0, avg= 0.00, stdev= 0.00 bw (KiB/s) : min= 18, max=20563, per=69.58%, avg=11913.21, stdev=6744.27 write: io=95,496KiB, bw=8,515KiB/s, runt= 11483msec slat (msec): min= 0, max= 55, avg= 1.98, stdev= 3.13 clat (msec): min= 0, max= 0, avg= 0.00, stdev= 0.00 bw (KiB/s) : min= 0, max=100187, per=134.74%, avg=34254.00, stdev=57114.17 cpu : usr=6.14%, sys=2.50%, ctx=2722 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=22548 read : io=100MiB, bw=5,716KiB/s, runt= 18342msec slat (msec): min= 98, max=16884, avg=13352.05, stdev=2624.79 clat (msec): min= 0, max= 0, avg= 0.00, stdev= 0.00 bw (KiB/s) : min= 13, max=17546, per=74.09%, avg=12685.92, stdev=6022.25 write: io=98MiB, bw=8,925KiB/s, runt= 11512msec slat (msec): min= 0, max= 102, avg= 2.02, stdev= 3.26 clat (msec): min= 0, max= 0, avg= 0.00, stdev= 0.00 bw (KiB/s) : min= 0, max=92517, per=141.89%, avg=36072.00, stdev=49509.02 cpu : usr=6.91%, sys=2.18%, ctx=735 IO depths : 1=12.6%, 2=25.1%, 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% Run status group 0 (all jobs): READ: io=300MiB, aggrb=17,122KiB/s, minb=5,707KiB/s, maxb=5,721KiB/s, mint=18327msec, maxt=18372msec WRITE: io=279MiB, aggrb=25,423KiB/s, minb=8,009KiB/s, maxb=8,925KiB/s, mint=18327msec, maxt=18372msec Disk stats (read/write): sda: ios=2754/1601, merge=1103/69736, ticks=33136/1401432, in_queue=1436660, util=98.99% 3.68user 1.21system 0:18.64elapsed 26%CPU (0avgtext+0avgdata 0maxresident)k 0inputs+0outputs (0major+2409minor)pagefaults 0swaps