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: [mFF] [33.3% done] [ 2364/ 72752 kb/s] [eta 00m:06s] Threads: 3: [FFF] [100.0% done] [ 488/ 55181 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] [ 13070/ 0 kb/s] [eta 00m:06s] Threads: 3: [VVV] [75.0% done] [ 24572/ 0 kb/s] [eta 00m:05s] Threads: 3: [VVV] [80.0% done] [ 29440/ 0 kb/s] [eta 00m:04s] Threads: 3: [VVV] [85.0% done] [ 27948/ 0 kb/s] [eta 00m:03s] Threads: 3: [VVV] [90.0% done] [ 27164/ 0 kb/s] [eta 00m:02s] Threads: 3: [VVV] [95.0% done] [ 29923/ 0 kb/s] [eta 00m:01s] Threads: 3: [VVV] [100.0% done] [ 26782/ 0 kb/s] [eta 00m:00s] Threads: 3: [VVV] [100.0% done] [ 32847/ 0 kb/s] [eta 00m:00s] Threads: 3: [VVV] [100.0% done] [ 31880/ 0 kb/s] [eta 00m:00s] Threads: 1: [V__] [100.0% done] [ 29180/ 0 kb/s] [eta 00m:00s] fio: (groupid=0): err= 0: pid=1472 read : io=100MiB, bw=4,361KiB/s, runt= 24042msec slat (msec): min= 0, max= 0, avg= 0.00, stdev= 0.00 clat (msec): min= 0, max= 655, avg=60.13, stdev=101.79 bw (KiB/s) : min= 3, max=16804, per=51.52%, avg=6740.71, stdev=4404.93 write: io=93,180KiB, bw=6,997KiB/s, runt= 13636msec slat (msec): min= 0, max= 0, avg= 0.00, stdev= 0.00 clat (msec): min= 0, max= 159, avg= 1.21, stdev= 9.57 bw (KiB/s) : min= 0, max=14957, per=34.92%, avg=7478.50, stdev=10576.20 cpu : usr=3.18%, sys=1.90%, ctx=4631 IO depths : 1=4.4%, 2=56.7%, 4=28.3%, 8=10.5%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=46.1%, 4=1.9%, 10=28.3%, 20=3.5%, 50=5.9%, 100=3.6% lat (msec): 250=6.9%, 500=3.3%, 750=0.3%, 1000=0.0%, >=2000=0.0% fio: (groupid=0): err= 0: pid=1473 read : io=100MiB, bw=4,602KiB/s, runt= 22785msec slat (msec): min= 0, max= 0, avg= 0.00, stdev= 0.00 clat (msec): min= 0, max= 718, avg=50.38, stdev=82.14 bw (KiB/s) : min= 21, max=16810, per=71.28%, avg=9325.74, stdev=4302.05 write: io=90,400KiB, bw=6,770KiB/s, runt= 13673msec slat (msec): min= 0, max= 0, avg= 0.00, stdev= 0.00 clat (msec): min= 0, max= 359, avg= 0.91, stdev=13.40 bw (KiB/s) : min= 0, max=129523, per=302.38%, avg=64761.50, stdev=91586.59 cpu : usr=3.34%, sys=1.54%, ctx=4625 IO depths : 1=4.4%, 2=58.6%, 4=25.9%, 8=11.1%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=49.7%, 4=0.2%, 10=26.2%, 20=3.3%, 50=4.3%, 100=7.1% lat (msec): 250=7.5%, 500=1.4%, 750=0.3%, 1000=0.0%, >=2000=0.0% fio: (groupid=0): err= 0: pid=1474 read : io=100MiB, bw=4,441KiB/s, runt= 23607msec clat (msec): min= 0, max= 711, avg=46.46, stdev=85.73 bw (KiB/s) : min= 1, max=17042, per=75.52%, avg=9880.56, stdev=5219.55 write: io=100MiB, bw=7,701KiB/s, runt= 13616msec slat (msec): min= 0, max= 0, avg= 0.00, stdev= 0.00 clat (msec): min= 0, max= 15, avg= 1.10, stdev= 2.53 bw (KiB/s) : min= 0, max=113700, per=293.28%, avg=62811.00, stdev=57779.95 cpu : usr=3.86%, sys=1.71%, ctx=4430 IO depths : 1=5.5%, 2=55.7%, 4=30.5%, 8=8.2%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=45.3%, 4=1.6%, 10=33.4%, 20=4.7%, 50=4.2%, 100=2.4% lat (msec): 250=5.9%, 500=2.0%, 750=0.2%, 1000=0.0%, >=2000=0.0% Run status group 0 (all jobs): READ: io=300MiB, aggrb=13,084KiB/s, minb=4,361KiB/s, maxb=4,602KiB/s, mint=22785msec, maxt=24042msec WRITE: io=279MiB, aggrb=21,417KiB/s, minb=6,770KiB/s, maxb=7,701KiB/s, mint=22785msec, maxt=24042msec Disk stats (read/write): sda: ios=1466/1839, merge=5264/69378, ticks=200376/1751240, in_queue=1974164, util=98.53% 2.50user 1.27system 0:24.47elapsed 15%CPU (0avgtext+0avgdata 0maxresident)k 0inputs+0outputs (0major+2462minor)pagefaults 0swaps