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: [mmm] [12.5% done] [ 9114/ 10154 kb/s] [eta 00m:21s] Threads: 3: [mmm] [14.8% done] [ 12982/ 6810 kb/s] [eta 00m:23s] Threads: 3: [mmm] [20.0% done] [ 14860/ 4177 kb/s] [eta 00m:20s] Threads: 3: [mmm] [24.0% done] [ 10617/ 6022 kb/s] [eta 00m:19s] Threads: 3: [mmm] [28.0% done] [ 11389/ 5245 kb/s] [eta 00m:18s] Threads: 3: [mmm] [30.8% done] [ 11788/ 3937 kb/s] [eta 00m:18s] Threads: 3: [mmm] [33.3% done] [ 8693/ 6276 kb/s] [eta 00m:18s] Threads: 3: [mmm] [37.0% done] [ 12836/ 3304 kb/s] [eta 00m:17s] Threads: 3: [mmm] [40.7% done] [ 12572/ 2296 kb/s] [eta 00m:16s] Threads: 3: [mmm] [44.4% done] [ 5944/ 9724 kb/s] [eta 00m:15s] Threads: 3: [mmm] [46.4% done] [ 4556/ 8088 kb/s] [eta 00m:15s] Threads: 3: [mmm] [48.3% done] [ 7792/ 4676 kb/s] [eta 00m:15s] Threads: 3: [mmm] [50.0% done] [ 10384/ 1556 kb/s] [eta 00m:15s] Threads: 3: [mmm] [53.3% done] [ 10548/ 1376 kb/s] [eta 00m:14s] Threads: 3: [mmm] [54.8% done] [ 5952/ 3132 kb/s] [eta 00m:14s] Threads: 3: [mmm] [58.1% done] [ 2872/ 6992 kb/s] [eta 00m:13s] Threads: 3: [mmm] [61.3% done] [ 4572/ 4424 kb/s] [eta 00m:12s] Threads: 3: [mmm] [62.5% done] [ 4588/ 4168 kb/s] [eta 00m:12s] Threads: 3: [mmm] [63.6% done] [ 3492/ 3492 kb/s] [eta 00m:12s] Threads: 3: [mmV] [66.7% done] [ 3388/ 3760 kb/s] [eta 00m:11s] Threads: 3: [mVV] [67.6% done] [ 10596/ 188 kb/s] [eta 00m:11s] Threads: 3: [VVV] [68.6% done] [ 16992/ 0 kb/s] [eta 00m:11s] Threads: 3: [VVV] [71.4% done] [ 16532/ 0 kb/s] [eta 00m:10s] Threads: 3: [VVV] [74.3% done] [ 16156/ 0 kb/s] [eta 00m:09s] Threads: 3: [VVV] [79.4% done] [ 16092/ 0 kb/s] [eta 00m:07s] Threads: 3: [VVV] [82.4% done] [ 14912/ 0 kb/s] [eta 00m:06s] Threads: 2: [VV_] [85.3% done] [ 16800/ 0 kb/s] [eta 00m:05s] Threads: 1: [_V_] [96.8% done] [ 13416/ 0 kb/s] [eta 00m:01s] fio: (groupid=0): err= 0: pid=1648 read : io=100MiB, bw=3,460KiB/s, runt= 30302msec slat (msec): min= 0, max= 7058, avg=1451.66, stdev=2228.37 clat (msec): min= 0, max= 841, avg=101.28, stdev=123.38 bw (KiB/s) : min= 27, max= 8855, per=36.69%, avg=3753.96, stdev=2528.00 write: io=33,536KiB, bw=1,477KiB/s, runt= 23244msec slat (msec): min= 0, max= 36, avg= 0.11, stdev= 1.52 clat (msec): min= 0, max= 848, avg=117.15, stdev=167.45 bw (KiB/s) : min= 0, max= 4712, per=37.30%, avg=2056.92, stdev=1718.11 cpu : usr=3.00%, sys=0.18%, ctx=1761 IO depths : 1=0.2%, 2=0.4%, 4=15.0%, 8=84.5%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=1.8%, 4=0.9%, 10=6.2%, 20=17.6%, 50=35.2%, 100=7.0% lat (msec): 250=13.8%, 500=15.5%, 750=1.4%, 1000=0.4%, >=2000=0.0% fio: (groupid=0): err= 0: pid=1649 read : io=100MiB, bw=3,410KiB/s, runt= 30744msec slat (msec): min= 0, max= 8332, avg=2299.45, stdev=2966.72 clat (msec): min= 0, max= 790, avg=87.50, stdev=106.45 bw (KiB/s) : min= 57, max=17203, per=39.88%, avg=4080.88, stdev=3328.99 write: io=47,832KiB, bw=2,160KiB/s, runt= 22671msec slat (msec): min= 0, max= 68, avg= 0.16, stdev= 2.41 clat (msec): min= 0, max= 1065, avg=98.31, stdev=136.58 bw (KiB/s) : min= 0, max=10952, per=55.64%, avg=3067.82, stdev=2808.29 cpu : usr=2.91%, sys=0.20%, ctx=1887 IO depths : 1=0.1%, 2=1.1%, 4=20.1%, 8=78.7%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=2.1%, 4=1.3%, 10=6.9%, 20=21.2%, 50=30.8%, 100=8.4% lat (msec): 250=15.4%, 500=12.9%, 750=0.8%, 1000=0.2%, >=2000=0.0% fio: (groupid=0): err= 0: pid=1650 read : io=100MiB, bw=3,588KiB/s, runt= 29222msec slat (msec): min= 0, max= 7619, avg=1559.57, stdev=2320.10 clat (msec): min= 0, max= 509, avg=92.04, stdev=101.85 bw (KiB/s) : min= 28, max=11122, per=39.60%, avg=4051.93, stdev=2720.98 write: io=43,804KiB, bw=2,078KiB/s, runt= 21584msec slat (msec): min= 0, max= 36, avg= 0.12, stdev= 1.47 clat (msec): min= 0, max= 915, avg=107.66, stdev=140.50 bw (KiB/s) : min= 0, max=11706, per=55.26%, avg=3047.23, stdev=3131.31 cpu : usr=3.53%, sys=0.16%, ctx=1836 IO depths : 1=0.1%, 2=0.5%, 4=16.3%, 8=83.1%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=2.3%, 4=1.3%, 10=7.0%, 20=17.5%, 50=31.1%, 100=8.8% lat (msec): 250=17.8%, 500=13.5%, 750=0.6%, 1000=0.1%, >=2000=0.0% Run status group 0 (all jobs): READ: io=300MiB, aggrb=10,232KiB/s, minb=3,410KiB/s, maxb=3,588KiB/s, mint=29222msec, maxt=30744msec WRITE: io=122MiB, aggrb=5,514KiB/s, minb=1,477KiB/s, maxb=2,160KiB/s, mint=29222msec, maxt=30744msec Disk stats (read/write): sda: ios=4804/2267, merge=1804/431, ticks=486384/256740, in_queue=743136, util=99.29% 2.88user 0.22system 0:31.06elapsed 10%CPU (0avgtext+0avgdata 0maxresident)k 0inputs+0outputs (0major+2409minor)pagefaults 0swaps