目标：磁盘随机读 随机写 以及吞吐数据测试

方法：

1、安装fio

2、编写.sh，执行4k 随机读  4k随机写 1024 读 1024k写

#/bin/bash
date
echo "!!!!!!!!Run 4K Rand Read !!!!!!!!"
fio -numjobs=1 -iodepth=128 -direct=1 -ioengine=libaio -sync=1 -rw=randread -bs=4K -size=1G -time_based -runtime=60 -name=4krandread -directory=/mnt >4krandread.log
sleep 10
echo "!!!!!!!!Run 4K Rand Write !!!!!!!!"
fio -numjobs=1 -iodepth=128 -direct=1 -ioengine=libaio -sync=1 -rw=randwrite -bs=4K -size=1G -time_based -runtime=60 -name=4krandwrite -directory=/mnt>4krandwrite.log
sleep 10

echo "!!!!!!!!Run 1M Rand Read !!!!!!!!"
fio -numjobs=1 -iodepth=128 -direct=1 -ioengine=libaio -sync=1 -rw=randread -bs=1M -size=1G -time_based -runtime=60 -name=1Mrandwrite -directory=/mnt>1Mrandread.log
sleep 10
echo "!!!!!!!!Run 1M Rand Write !!!!!!!!"
fio -numjobs=1 -iodepth=128 -direct=1 -ioengine=libaio -sync=1 -rw=randwrite -bs=1M -size=1G -time_based -runtime=60 -name=1Mrandwrite -directory=/mnt >1Mrandwrite.log
注：上述参数也可以通过参数化来实现

3、编写.sh 处理数据 

取出4k 的iops lat:avg

取出1024K bw值

#/bin/bash
for name in '*.log'
do
echo  $name
cat $name |grep "write:" -A 3|grep 'lat'|awk 'END {print}'|egrep -o "\([a-z]+\)|avg=[0-9. ]+"|sort |xargs|tr -d "avg=sec\(\) " >$name_lat.log
done
4、统计结果