On Sat, Feb 14, 2009 at 8:00 AM, Roger Heflin <rogerheflin@xxxxxxxxx> wrote:
that seems to make sense, With 64, you have twice the register size, so that means double the footprint, for some things could be a bit slower, (twice the throughput between the ram and CPU) otherwise i've found little difference in performance and i've used 32/64 a lot. The ram addressing is the main advantage, since there's a small hit with using PAE, it depends how much I/O is involved. Glad to hear others experience too, hope this helps...
Klaus-Peter Schrage wrote:Something to note, I don't know why but the 64-bit versions of Firefox and Thunderbird use a lot more memory than the 32-bit versions, I was originally running a 32-bit f9 with 3GB ram w/2GB swap, and almost never got into swap, after switching to 10 64-bit, I had to add 2GB more of swap and was getting deep into the 4GB of swap, I uninstalled 64-bit firefox/openoffice and thunderbird and put in the 32-bit version and the memory usage went down quite a bit. The memory usage was a at least 50% more.
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.
Thanks for any pointers.
Klaus
that seems to make sense, With 64, you have twice the register size, so that means double the footprint, for some things could be a bit slower, (twice the throughput between the ram and CPU) otherwise i've found little difference in performance and i've used 32/64 a lot. The ram addressing is the main advantage, since there's a small hit with using PAE, it depends how much I/O is involved. Glad to hear others experience too, hope this helps...
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