Sigar全名是System Information Gatherer And Reporter，中文名是系统信息收集和报表工具
https://blog.csdn.net/xiaozhegaa/article/details/79920243
https://github.com/hyperic/sigar
https://sourceforge.net/projects/sigar/
https://my.oschina.net/xiaominmin/blog/3128209
https://github.com/oshi/oshi