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: [FFF] [100.0% done] [ 816/ 40876 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] [68.4% done] [ 4740/ 0 kb/s] [eta 00m:06s] Threads: 3: [VVV] [73.7% done] [ 29096/ 0 kb/s] [eta 00m:05s] Threads: 3: [VVV] [78.9% done] [ 34888/ 0 kb/s] [eta 00m:04s] Threads: 3: [VVV] [88.9% done] [ 27380/ 0 kb/s] [eta 00m:02s] Threads: 3: [VVV] [94.4% done] [ 34788/ 0 kb/s] [eta 00m:01s] Threads: 3: [VVV] [100.0% done] [ 40040/ 0 kb/s] [eta 00m:00s] Threads: 3: [VVV] [100.0% done] [ 36660/ 0 kb/s] [eta 00m:00s] Threads: 3: [VVV] [100.0% done] [ 31632/ 0 kb/s] [eta 00m:00s] Threads: 3: [VVV] [100.0% done] [ 30724/ 0 kb/s] [eta 00m:00s] fio: (groupid=0): err= 0: pid=19348 read : io=100MiB, bw=4,754KiB/s, runt= 22053msec slat (msec): min= 46, max=20425, avg=15898.64, stdev=3666.33 clat (msec): min= 0, max= 0, avg= 0.00, stdev= 0.00 bw (KiB/s) : min= 7, max=15095, per=64.34%, avg=9177.94, stdev=5430.41 write: io=98,808KiB, bw=8,157KiB/s, runt= 12403msec slat (msec): min= 0, max= 18, avg= 2.14, stdev= 2.64 clat (msec): min= 0, max= 0, avg= 0.00, stdev= 0.00 bw (KiB/s) : min= 0, max=40527, per=86.56%, avg=20263.50, stdev=28656.92 cpu : usr=6.06%, sys=1.52%, ctx=1198 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=19349 read : io=100MiB, bw=4,863KiB/s, runt= 21561msec slat (msec): min= 14, max=19914, avg=14928.18, stdev=4654.62 clat (msec): min= 0, max= 0, avg= 0.00, stdev= 0.00 bw (KiB/s) : min= 13, max=20714, per=72.25%, avg=10305.82, stdev=6456.18 write: io=99,672KiB, bw=7,947KiB/s, runt= 12842msec slat (msec): min= 0, max= 170, avg= 2.40, stdev= 6.47 clat (msec): min= 0, max= 0, avg= 0.00, stdev= 0.00 bw (KiB/s) : min= 0, max=96337, per=253.21%, avg=59273.00, stdev=51866.50 cpu : usr=5.84%, sys=1.74%, ctx=872 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=19350 read : io=100MiB, bw=4,782KiB/s, runt= 21924msec slat (msec): min= 70, max=19430, avg=14497.97, stdev=3808.11 clat (msec): min= 0, max= 0, avg= 0.00, stdev= 0.00 bw (KiB/s) : min= 18, max=18968, per=61.17%, avg=8725.16, stdev=5733.44 write: io=95,096KiB, bw=7,795KiB/s, runt= 12492msec slat (msec): min= 0, max= 124, avg= 2.05, stdev= 4.79 clat (msec): min= 0, max= 0, avg= 0.00, stdev= 0.00 bw (KiB/s) : min= 0, max=90238, per=128.68%, avg=30123.67, stdev=52060.58 cpu : usr=5.71%, sys=1.66%, ctx=1121 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% Run status group 0 (all jobs): READ: io=300MiB, aggrb=14,264KiB/s, minb=4,754KiB/s, maxb=4,863KiB/s, mint=21561msec, maxt=22053msec WRITE: io=287MiB, aggrb=23,409KiB/s, minb=7,795KiB/s, maxb=8,157KiB/s, mint=21561msec, maxt=22053msec Disk stats (read/write): sda: ios=3110/1655, merge=1094/71465, ticks=66000/1579272, in_queue=1660884, util=98.84% 3.90user 1.09system 0:22.30elapsed 22%CPU (0avgtext+0avgdata 0maxresident)k 0inputs+0outputs (0major+2424minor)pagefaults 0swaps