Actually, I don't see RSS numbers particularly different between i686 and x86_64. For a server under ab load for a static page, I get an RSS of ~10.5Mb on amd64, and ~9.5Mb on i686, which seems like a reasonable difference. This is comparing like for like on RHEL3 U3, I don't have a Hammer box running FC2 to compare. You are comparing active servers not idle ones, right? RSS of an idle server is not interesting since it may be half swapped out. joe
