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Re: Advice on changing to 64 bits

On 02/14/2009 07:32 AM, Klaus-Peter Schrage wrote:
Up to last week, I had Fedora running in subsequent versions 2 or so to 10 on my old Pentium 4 system.

Now I have a rather recent new desktop computer with much of the latest and greatest hardware: Intel Core 2 Duo E8400 with 4 GB RAM, harddrive with lots of Gagabytes and so on.

Thinking about changing to 64 bits architecture (I have the i386 installation dvd, but not yet the i86_64 one), I was astonished how little I found on pros and cons. So what would you advise?

1. Changing to 64 bits is a must for you.
2. You will benefit from it.
3. Keep your hands off, stay with 64 bits.
4. ...

I should mention that I want to use virtualization (KVM, VMware Server), and that the processor has Intel's hardware vitualization capabilities.

I would strongly recommend updating to 64-bits. The big advantage is that you can run both 32-bit and 64-bit applications as well as develop both. I've been in the 64-bit world since 1994 (Digital Alpha), and Linux itself has been 64-bits since roughly 1995 or 1996. A Tom mentioned, your 64-bit virtual machine managers can also run 32-bit or 64-bit guests. While, in my experience, some applications may perform better as 32-bit applications, but many run better in 64-bits. There were some issues with Adobe Flash and Sun's Java plugins, but both are now available as full 64-bit plugins for Firefox. I'm not sure of the architecture of future filesystems, but possibly some drivers in the future will be 64-bit only).

Jerry Feldman <gaf blu org>
Boston Linux and Unix
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