Believe it or not its a fairly easy move to 64 bit Oracle on Redhat - we had Heaps (HA HA) of problems with memory until we switched. 2009/6/23 Niall Litchfield <niall.litchfield@xxxxxxxxx> > actually on Linux all it shows is that the memory is at least adequate, not > that it is sized perfectly. It could be that oracle is only using say 1g of > that RAM and all the rest is 'in-use' for caching the linux filesystems. On > Linux you expect memory to show as all 'in-use' until you start swapping :(. > So I agree that there isn't memory pressure as far as the o/s is concerned, > but not that the box is sized perfectly for the workload, we don't have > enough information for that. > > Niall > > On Tue, Jun 23, 2009 at 7:15 AM, Mathias Magnusson < > mathias.magnusson@xxxxxxxxx> wrote: > >> Are you trying to tune or to understand memory? There is nothing here that >> would indicate a problem. If you use all you memory and no swap, then that >> would be optimal. It shows that your box is sized perfectly and you do not >> ned to use swap >> >> > -- > Niall Litchfield > Oracle DBA > http://www.orawin.info > -- Howard A. Latham