We currently have a Jira and Greenhopper install on a Windows Server 2008(4 core/ 64 bit/ 6g ram). We are looking at adding other Atlassian products(Fisheye/Confluence/Stash). It was suggested, by someone in our office, that the overall performance will be better on a Linux server. Is there a recommendation on what OS to install some of the Atlassian suite on? With our current Windows setup, we don't have any issues. The concern is coming from installing the other plugins.