Hi, In our company we have a DL380 ( 16gb ram) server with Windows server 2003 x86, this run only tomcat 6. We have 2 options: a) upgrade to windows 2008 x64 and b) migrate to Linux ( I mean centos 6 x64). I want to make some benchmarks. Please help me to compare a and b. How I can make this benchmark? -- Best Regards, Ashkan R