开源性能监控工具，用于监控linux系统的资源消耗信息，并能把结果输出到文件中，然后通过nmon_analyser工具产生数据文件与图形化结果。
Nmon
- 下载相应OS版本，基于Centosnmon
- 上传到Server
/opt/nmon/ 解压，重命名，授权
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3[root@Automation nmon]# tar -zxvf nmon16e_mpginc.tar.gz
[root@Automation nmon]# mv nmon_x86_64_centos6 nmon
[root@Automation nmon]# chmod 777 nmon验证
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21[root@Automation nmon]# ./nmon
------------------------------ x
x _ __ _ __ ___ ___ _ __ For help type H or ... x
x | '_ \| '_ ` _ \ / _ \| '_ \ nmon -? - hint
x | | | | | | | | | (_) | | | | nmon -h - full details
x |_| |_|_| |_| |_|\___/|_| |_|
x To stop nmon type q to Quit
x ------------------------------ x
x LSB_VERSION=base-4.0-amd64:base-4.0-noarch:core-4.0-amd64:core-4.0-noarch:graphics-4.0-amd64:graphics-4.0-noarch:printing-4.0-amd64:printing-4.0-no x
xarcGenuineIntel Intel(R) Core(TM) i5-6300U CPU @ 2.40GHz
x MHz=2496.089 bogomips=4992.17
x ProcessorChips=1 PhyscalCores=1
x Hyperthreads =0 VirtualCPUs =2 x
x Use these keys to toggle statistics on/off:
x c = CPU l = CPU Long-term - = Faster screen updates
x C = " WideView U = Utilisation + = Slower screen updates
x m = Memory V = Virtual memory j = File Systems
x d = Disks n = Network . = only busy disks/procs
x r = Resource N = NFS h = more options
x k = Kernel t = Top-processes q = Quit
Nmon Analyser
下载和说明参见：nmon_analyser
数据采集并分析
采集
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23[root@Automation nmon]# ./nmon --help
./nmon: invalid option -- '-'
Hint for nmon version 16e
Full Help Info : nmon -h
On-screen Stats: nmon
Data Collection: nmon -f [-s <seconds>] [-c <count>] [-t|-T]
Capacity Plan : nmon -x
Interactive-Mode:
Read the Welcome screen & at any time type: "h" for more help
Type "q" to exit nmon
For Data-Collect-Mode
-f Must be the first option on the line (switches off interactive mode)
Saves data to a CSV Spreadsheet format .nmon file in then local directory
Note: -f sets a defaults -s300 -c288 which you can then modify
Further Data Collection Options:
-s <seconds> time between data snapshots
-c <count> of snapshots before exiting
-t Includes Top Processes stats (-T also collects command arguments)
-x Capacity Planning=15 min snapshots for 1 day. (nmon -ft -s 900 -c 96)
---- End of Hints
[root@Automation nmon]# ./nmon -c 10 -s 2 -f -t分析
把第一步生成的采集文件，用analyser打开即可。
