3.性能优化-监控-硬件和软件环境获取

性能测试一定要首先标明测试的软硬件环境，本篇简要说明如何获取常用的软硬件环境的linux命令。
1.硬件
1)查看CPU
#cat /proc/cpuinfo
model name : Intel(R) Core(TM) i7-2630QM CPU @ 2.00GHz
cpu MHz : 1995.529
cache size : 6144 KB
...
2)查看内存
#cat /proc/meminfo
MemTotal: 1309844 kB
...
3)查看硬盘
#df -h
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/vg_centos-lv_root
16G 9.9G 4.7G 68% /
tmpfs 640M 100K 640M 1% /dev/shm
/dev/sda1 485M 29M 431M 7% /boot
.host:/ 36G 20G 17G 55% /mnt/hgfs

2.操作系统
1)操作系统版本
# head -n 1 /etc/issue
CentOS Linux release 6.0 (Final)

2)操作系统内核
# uname -a
Linux centos 2.6.32-71.el6.i686 #1 SMP Fri Nov 12 04:17:17 GMT 2010 i686 i686 i386 GNU/Linux

3.应用软件

1)JDK版本
# Java -version
java version "1.6.0_21"
Java(TM) SE Runtime Environment (build 1.6.0_21-b06)
Java HotSpot(TM) Client VM (build 17.0-b16, mixed mode, sharing)
2)查看tomcat版本
进入到tomcat/bin目录
#./version.sh
Server version: Apache Tomcat/7.0.53

3)查看mysql版本
# mysql --version
mysql Ver 14.14 Distrib 5.6.17, for Linux (i686) using EditLine wrapper