I'm planning for new Centos 4 computers using the 64bit distribution and is wondering if there is a difference on how much RAM memory you should use on a 32bit versus 64bit operating system? Will processes such as for example KDE, Firefox use more memory on the 64bit architecture than on the 32bit and if so by how much as a rule of thumb? Kind regards, Christian -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.centos.org/pipermail/centos/attachments/20060828/b5880f2b/attachment-0002.html>
On 8/28/06, Christian Nygaard <christiannygaard at gmail.com> wrote:> I'm planning for new Centos 4 computers using the 64bit distribution and is > wondering > if there is a difference on how much RAM memory you should use on a 32bit > versus > 64bit operating system? > > Will processes such as for example KDE, Firefox use more memory on the 64bit > architecture > than on the 32bit and if so by how much as a rule of thumb? >I don't think so, at least as I understand things 64 bit just means you can use more memory not that you must. I don't know enough about it but it seems to me you will gain some size from the fact that pointers/addresses are now 8 bytes instead of 4, but I would think that would not be that big of a deal. Cheers...james
Christian Nygaard wrote:> I'm planning for new Centos 4 computers using the 64bit distribution and > is wondering > if there is a difference on how much RAM memory you should use on a > 32bit versus > 64bit operating system?there is no difference in how much RAM memory you should use but if you are going to get a box with more than 1GB of RAM (I think it is 1G...) using AMD's (note Intel: EMT64 cpus don't count) cpus will give you better memory performance.