It was confirmed that indicator-multiload causes memory leak in compiz see bug #779717. They have a version of unity in their ppa that is patched to work with indicator-multiload. Looks like this is unity bug.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/779123 Title: Compiz ram usage increases over time -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs