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64 bit pfSense on Pentium D with 3GB Ram?

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  • B
    Bai Shen
    last edited by Feb 2, 2011, 6:25 PM

    Looking to try out 2.0 and I'm not sure which version to use.  I have a Pentium D with 3GB of Ram.  Should I run 32 or 64 bit on it?

    I've previously gone by the guideline that you should stick with 32 bit when running with 4GB or less memory.  Is that still the case?  Will I notice any differences?

    I don't plan on upgrading this box, so I won't have to worry about more than 4GB of memory.

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    • J
      jimp Rebel Alliance Developer Netgate
      last edited by Feb 2, 2011, 7:10 PM

      It could go either way on that hardware. Some things will run faster on amd64, others may be slower, it will in general use more RAM, but I don't think anyone has done any benchmarks.

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      • B
        Bai Shen
        last edited by Feb 2, 2011, 10:21 PM

        Okay.  Tryin' it with 64 bit first.  We'll see if I have any problems.

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        • J
          jasonlitka
          last edited by Feb 4, 2011, 5:20 PM

          Just as an FYI, the netburst P4 CPUs were almost universally slower in 64-bit mode than in 32-bit.  I never ran 64-bit installs of Windows or Linux on them unless I had to in order to access all the installed RAM.

          I can break anything.

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          • B
            Bai Shen
            last edited by Feb 4, 2011, 5:40 PM

            @jasonlitka:

            Just as an FYI, the netburst P4 CPUs were almost universally slower in 64-bit mode than in 32-bit.  I never ran 64-bit installs of Windows or Linux on them unless I had to in order to access all the installed RAM.

            How's that?

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            • J
              jasonlitka
              last edited by Feb 4, 2011, 10:28 PM

              Because Intel's implementation of tacking on 64-bit extensions to a 32-bit design stunk.  Here's an old page on X-bit Labs with some nice benchmarks showing the A64 being faster in 64-bit than 32-bit and the P4 being slower.

              http://www.xbitlabs.com/articles/cpu/display/x86-64-rc1_11.html

              I can break anything.

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              • B
                Bai Shen
                last edited by Feb 5, 2011, 3:38 PM

                I'll check it out.  Thanks.

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