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: [FFm] [42.9% done] [ 0/ 0 kb/s] [eta 00m:04s] Threads: 3: [FFm] [57.1% done] [ 499/ 20475 kb/s] [eta 00m:03s] Threads: 3: [FFF] [100.0% done] [ 0/ 21341 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] [ 5050/ 0 kb/s] [eta 00m:06s] Threads: 3: [VVV] [73.7% done] [ 23856/ 0 kb/s] [eta 00m:05s] Threads: 3: [VVV] [78.9% done] [ 33328/ 0 kb/s] [eta 00m:04s] Threads: 3: [VVV] [84.2% done] [ 28346/ 0 kb/s] [eta 00m:03s] Threads: 3: [VVV] [94.4% done] [ 36514/ 0 kb/s] [eta 00m:01s] Threads: 3: [VVV] [100.0% done] [ 37522/ 0 kb/s] [eta 00m:00s] Threads: 3: [VVV] [100.0% done] [ 37469/ 0 kb/s] [eta 00m:00s] Threads: 3: [VVV] [100.0% done] [ 33523/ 0 kb/s] [eta 00m:00s] Threads: 3: [VVV] [100.0% done] [ 34470/ 0 kb/s] [eta 00m:00s] fio: (groupid=0): err= 0: pid=4506 read : io=100MiB, bw=4,803KiB/s, runt= 21831msec slat (msec): min=12033, max=20652, avg=16809.66, stdev=2452.96 clat (msec): min= 0, max= 0, avg= 0.00, stdev= 0.00 bw (KiB/s) : min= 0, max=16669, per=74.74%, avg=10769.81, stdev=4224.62 write: io=100MiB, bw=8,378KiB/s, runt= 12515msec slat (msec): min= 0, max= 20, avg= 2.59, stdev= 3.11 clat (msec): min= 0, max= 0, avg= 0.00, stdev= 0.00 bw (KiB/s) : min= 0, max=106438, per=253.20%, avg=61094.67, stdev=54939.42 cpu : usr=6.50%, sys=2.13%, ctx=757 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=4507 read : io=100MiB, bw=4,826KiB/s, runt= 21726msec slat (msec): min=11554, max=20565, avg=16417.48, stdev=2576.89 clat (msec): min= 0, max= 0, avg= 0.00, stdev= 0.00 bw (KiB/s) : min= 9, max=19151, per=74.20%, avg=10691.38, stdev=4352.71 write: io=100MiB, bw=8,365KiB/s, runt= 12534msec slat (msec): min= 0, max= 19, avg= 2.58, stdev= 3.04 clat (msec): min= 0, max= 0, avg= 0.00, stdev= 0.00 bw (KiB/s) : min= 0, max=103926, per=244.62%, avg=59024.33, stdev=53382.96 cpu : usr=6.50%, sys=2.14%, ctx=756 IO depths : 1=12.6%, 2=25.0%, 4=50.0%, 8=12.4%, 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=4508 read : io=100MiB, bw=4,881KiB/s, runt= 21481msec slat (msec): min= 60, max=17398, avg=12682.22, stdev=4000.15 clat (msec): min= 0, max= 0, avg= 0.00, stdev= 0.00 bw (KiB/s) : min= 22, max=15486, per=67.39%, avg=9709.83, stdev=4183.89 write: io=90,556KiB, bw=7,406KiB/s, runt= 12520msec slat (msec): min= 0, max= 2079, avg= 8.78, stdev=117.38 clat (msec): min= 0, max= 0, avg= 0.00, stdev= 0.00 bw (KiB/s) : min= 0, max=19708, per=40.84%, avg=9854.00, stdev=13935.66 cpu : usr=5.81%, sys=1.77%, ctx=971 IO depths : 1=12.6%, 2=25.0%, 4=50.0%, 8=12.4%, 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=14,409KiB/s, minb=4,803KiB/s, maxb=4,881KiB/s, mint=21481msec, maxt=21831msec WRITE: io=288MiB, aggrb=24,129KiB/s, minb=7,406KiB/s, maxb=8,378KiB/s, mint=21481msec, maxt=21831msec Disk stats (read/write): sda: ios=3068/1812, merge=1161/71937, ticks=65128/1572368, in_queue=1640192, util=98.14% 4.14user 1.38system 0:22.08elapsed 25%CPU (0avgtext+0avgdata 0maxresident)k 0inputs+0outputs (0major+2412minor)pagefaults 0swaps