测试CPU和磁盘性能

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测试CPU性能
Intel(R) Xeon(R) CPU E5-2650 v2 @ 2.60GHz  26.2秒  
Intel(R) Xeon(R) Platinum 8163 CPU @ 2.50GHz  24.4秒

time echo "scale=5000; 4*a(1)" | bc -l -q



https://jingyan.baidu.com/article/e75aca85102655142edac61f.html

测试写入速度
time dd if=/dev/zero of=/var/test bs=8k count=100000
测试读取速度
time dd if=/var/test of=/tmp/test bs=8k count=100000