Re: More RAM or quicker CPU?

From: Karsten Kruse (tecneeq_at_gmx.net)
Date: 02/23/05

  • Next message: Andrew Smallshaw: "Re: More RAM or quicker CPU?" 
    Date: Wed, 23 Feb 2005 18:35:00 +0100

    jpd wrote:

    >>>>I guess the jump from 400 MHz to 800 MHz is far more effective than from
    >>>>128 MB Ram to 256 MB Ram.

    >>>On what do you base that guess?

    >>Experience. I updated my x86 Workstation from a 900 MHz CPU to a 1800 MHz
    >>CPU (same motherboard) and had a very big speedup.

    > But how much memory did you have in it? And what did you do with it?

    A lot, 1 GB. Job of the Workstation is compiling embedded systems
    (crosscompiled stuff for arm and mips). Rest of the time my CPU is idle at
    double speed ;).

    > _I_ know from experience that switching from a 533MHz celeron to a
    > 866MHz pIII makes a lot of difference, but I think it has more to do
    > with the bus clock speed than with the core clock speed. Going from 400
    > to 800MHz cores, presumably both running with a 100MHz FSB clock, isn't
    > going to help much; it just starves the cpu more.

    Going from 400 to 800 MHz should speed up CPU-intense jobs by a factor of
    two. This is what i have learned with simple benchmarks like the ones we
    have in pkgsrc. Maybe not exactly x2 but something in that area.

    > I also know from experience that 128MB just doesn't cut it for a
    > workstation. 256MB was max for that machine, but that in itself was
    > a substantial improvement (with the celeron, still). And that while
    > I do not use any xDE, just a browser and many xterms.

    Ram was never an issue for me, but after reading the other posting from
    the OP i agree that more ram will make a cheap and big improvement.

    Karsten Kruse 

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