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] [12.0% done] [ 14936/ 3940 kb/s] [eta 00m:22s] Threads: 3: [mmm] [16.0% done] [ 15792/ 4632 kb/s] [eta 00m:21s] Threads: 3: [mmm] [19.2% done] [ 7104/ 11180 kb/s] [eta 00m:21s] Threads: 3: [mmm] [23.1% done] [ 9344/ 7304 kb/s] [eta 00m:20s] Threads: 3: [mmm] [25.9% done] [ 9596/ 5688 kb/s] [eta 00m:20s] Threads: 3: [mmm] [29.6% done] [ 12160/ 2088 kb/s] [eta 00m:19s] Threads: 3: [mmm] [33.3% done] [ 10544/ 4376 kb/s] [eta 00m:18s] Threads: 3: [mmm] [37.0% done] [ 6916/ 8104 kb/s] [eta 00m:17s] Threads: 3: [mmm] [40.7% done] [ 9496/ 5232 kb/s] [eta 00m:16s] Threads: 3: [mmm] [42.9% done] [ 8372/ 6436 kb/s] [eta 00m:16s] Threads: 3: [mmm] [46.4% done] [ 9236/ 5580 kb/s] [eta 00m:15s] Threads: 3: [mmm] [48.3% done] [ 9148/ 3936 kb/s] [eta 00m:15s] Threads: 3: [mmm] [51.7% done] [ 4864/ 7036 kb/s] [eta 00m:14s] Threads: 3: [mmm] [53.3% done] [ 8080/ 3132 kb/s] [eta 00m:14s] Threads: 3: [mmm] [56.7% done] [ 6808/ 4404 kb/s] [eta 00m:13s] Threads: 3: [mmm] [58.1% done] [ 5088/ 5804 kb/s] [eta 00m:13s] Threads: 3: [mmm] [59.4% done] [ 4568/ 5644 kb/s] [eta 00m:13s] Threads: 3: [mmm] [62.5% done] [ 6876/ 2892 kb/s] [eta 00m:12s] Threads: 3: [mmm] [65.6% done] [ 3960/ 4580 kb/s] [eta 00m:11s] Threads: 3: [VVV] [68.8% done] [ 6316/ 3872 kb/s] [eta 00m:10s] Threads: 3: [VVV] [69.7% done] [ 18880/ 0 kb/s] [eta 00m:10s] Threads: 3: [VVV] [75.0% done] [ 17680/ 0 kb/s] [eta 00m:08s] Threads: 3: [VVV] [78.1% done] [ 19128/ 0 kb/s] [eta 00m:07s] Threads: 3: [VVV] [83.9% done] [ 19952/ 0 kb/s] [eta 00m:05s] Threads: 3: [VVV] [87.1% done] [ 18620/ 0 kb/s] [eta 00m:04s] Threads: 2: [V_V] [93.3% done] [ 17008/ 0 kb/s] [eta 00m:02s] fio: (groupid=0): err= 0: pid=15986 read : io=100MiB, bw=3,607KiB/s, runt= 29066msec slat (msec): min= 0, max= 7029, avg=1957.34, stdev=2418.20 clat (msec): min= 0, max= 675, avg=94.63, stdev=94.70 bw (KiB/s) : min= 164, max= 9761, per=35.58%, avg=3850.60, stdev=2451.47 write: io=42,772KiB, bw=1,984KiB/s, runt= 22072msec slat (msec): min= 0, max= 8, avg= 0.09, stdev= 0.57 clat (msec): min= 0, max= 919, avg=90.61, stdev=118.10 bw (KiB/s) : min= 0, max= 7116, per=45.77%, avg=2627.89, stdev=2094.14 cpu : usr=3.18%, sys=0.23%, ctx=1812 IO depths : 1=0.2%, 2=0.4%, 4=18.6%, 8=80.9%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=1.4%, 4=0.7%, 10=5.9%, 20=16.2%, 50=24.6%, 100=16.2% lat (msec): 250=27.2%, 500=7.0%, 750=0.5%, 1000=0.2%, >=2000=0.0% fio: (groupid=0): err= 0: pid=15987 read : io=100MiB, bw=3,784KiB/s, runt= 27706msec slat (msec): min= 0, max= 7224, avg=1405.70, stdev=2241.75 clat (msec): min= 1, max= 383, avg=87.92, stdev=78.22 bw (KiB/s) : min= 14, max=10663, per=38.91%, avg=4210.56, stdev=2661.01 write: io=39,616KiB, bw=1,976KiB/s, runt= 20521msec slat (msec): min= 0, max= 8, avg= 0.15, stdev= 0.75 clat (msec): min= 0, max= 734, avg=109.72, stdev=104.57 bw (KiB/s) : min= 0, max= 8200, per=52.09%, avg=2990.95, stdev=2595.53 cpu : usr=3.45%, sys=0.17%, ctx=1852 IO depths : 1=0.1%, 2=0.3%, 4=12.1%, 8=87.5%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=0.9%, 4=0.5%, 10=3.2%, 20=9.9%, 50=26.3%, 100=24.5% lat (msec): 250=27.9%, 500=6.4%, 750=0.4%, 1000=0.0%, >=2000=0.0% fio: (groupid=0): err= 0: pid=15988 read : io=100MiB, bw=3,614KiB/s, runt= 29011msec slat (msec): min= 0, max= 7389, avg=2058.56, stdev=2608.69 clat (msec): min= 0, max= 500, avg=89.29, stdev=87.85 bw (KiB/s) : min= 8, max=11208, per=38.68%, avg=4186.23, stdev=2813.95 write: io=41,380KiB, bw=1,927KiB/s, runt= 21980msec slat (msec): min= 0, max= 7, avg= 0.11, stdev= 0.61 clat (msec): min= 0, max= 950, avg=109.39, stdev=115.26 bw (KiB/s) : min= 0, max= 7153, per=42.90%, avg=2463.50, stdev=1909.41 cpu : usr=3.35%, sys=0.26%, ctx=1866 IO depths : 1=0.1%, 2=0.2%, 4=15.6%, 8=84.0%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=0.8%, 4=0.8%, 10=3.7%, 20=12.7%, 50=24.1%, 100=23.3% lat (msec): 250=26.4%, 500=7.5%, 750=0.5%, 1000=0.1%, >=2000=0.0% Run status group 0 (all jobs): READ: io=300MiB, aggrb=10,822KiB/s, minb=3,607KiB/s, maxb=3,784KiB/s, mint=27706msec, maxt=29066msec WRITE: io=121MiB, aggrb=5,742KiB/s, minb=1,927KiB/s, maxb=1,984KiB/s, mint=27706msec, maxt=29066msec Disk stats (read/write): sda: ios=4852/2235, merge=1472/443, ticks=463320/255980, in_queue=719400, util=99.52% 2.92user 0.26system 0:29.29elapsed 10%CPU (0avgtext+0avgdata 0maxresident)k 0inputs+0outputs (0major+2394minor)pagefaults 0swaps