基本io benchmark
代码语言：javascript
复制[root@iZ116haf49sZ iotest]# fio -filename=/tmp/iotest/test -direct=1 -iodepth 1 -thread -rw=randrw -rwmixread=70 -ioengine=psync -bs=16k -size=5G -numjobs=3 -runtime=100 -group_reporting -name=mytest
mytest: (g=0): rw=randrw, bs=16K-16K/16K-16K/16K-16K, ioengine=psync, iodepth=1
...
fio-2.2.11-15-g236d
Starting 3 threads
mytest: Laying out IO file(s) (1 file(s) / 5120MB)
Jobs: 3 (f=3): [m(3)] [100.0% done] [8304KB/3376KB/0KB /s] [519/211/0 iops] [eta 00m:00s]
mytest: (groupid=0, jobs=3): err= 0: pid=30879: Fri Nov 13 20:01:23 2015
read : io=984.98MB, bw=10086KB/s, iops=630, runt=100002msec
clat (usec): min=491, max=215739, avg=2990.82, stdev=3717.96
lat (usec): min=492, max=215739, avg=2991.14, stdev=3717.96
clat percentiles (usec):
| 1.00th=[ 652], 5.00th=[ 812], 10.00th=[ 908], 20.00th=[ 1080],
| 30.00th=[ 1272], 40.00th=[ 1512], 50.00th=[ 1832], 60.00th=[ 2352],
| 70.00th=[ 3088], 80.00th=[ 4192], 90.00th=[ 6176], 95.00th=[ 8384],
| 99.00th=[14912], 99.50th=[20096], 99.90th=[45824], 99.95th=[52480],
| 99.99th=[79360]
bw (KB /s): min= 1408, max= 4739, per=33.38%, avg=3366.69, stdev=636.55
write: io=433904KB, bw=4338.1KB/s, iops=271, runt=100002msec
clat (msec): min=1, max=213, avg= 4.09, stdev= 3.96
lat (msec): min=1, max=213, avg= 4.10, stdev= 3.96
clat percentiles (usec):
| 1.00th=[ 1288], 5.00th=[ 1480], 10.00th=[ 1640], 20.00th=[ 1848],
| 30.00th=[ 2096], 40.00th=[ 2448], 50.00th=[ 2928], 60.00th=[ 3600],
| 70.00th=[ 4448], 80.00th=[ 5664], 90.00th=[ 7840], 95.00th=[10176],
| 99.00th=[16768], 99.50th=[20352], 99.90th=[35584], 99.95th=[55040],
| 99.99th=[87552]
bw (KB /s): min= 704, max= 2199, per=33.38%, avg=1447.97, stdev=269.96
lat (usec) : 500=0.01%, 750=2.04%, 1000=8.58%
lat (msec) : 2=34.80%, 4=29.25%, 10=21.49%, 20=3.34%, 50=0.44%
lat (msec) : 100=0.06%, 250=0.01%
cpu : usr=0.20%, sys=0.62%, ctx=130565, majf=0, minf=8
IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0%
submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
issued : total=r=63037/w=27119/d=0, short=r=0/w=0/d=0, drop=r=0/w=0/d=0
latency : target=0, window=0, percentile=100.00%, depth=1
Run status group 0 (all jobs):
READ: io=984.98MB, aggrb=10085KB/s, minb=10085KB/s, maxb=10085KB/s, mint=100002msec, maxt=100002msec
WRITE: io=433904KB, aggrb=4338KB/s, minb=4338KB/s, maxb=4338KB/s, mint=100002msec, maxt=100002msec
Disk stats (read/write):
xvda: ios=63033/27190, merge=0/41, ticks=108716/75084, in_queue=183770, util=99.17%
[root@iZ116haf49sZ iotest]# ls
test
[root@iZ116haf49sZ iotest]# du -sh test
5.1G test
[root@iZ116haf49sZ iotest]#
