On 2014-10-30, suse kid <suse_kid@no-mx.forums.opensuse.org> wrote:
> I assembled this PC on 2008. From day one I installed 64 bit thinking I
> will get the maximum performance. I didn’t notice any significant
> performance gain but I still continued using 64Bit but when Gnome 3 got
> released
> I saw a major slow down in performance. Same thing happened with KDE. I
> thought my hardware is no longer capable run these modern DEs and since
> openSUSE’s XFCE and LXDE spins were discontinued I moved to Manjaro.
And? Presumably you installed the 64-bit binaries of Manjaro with KDE or GNOME and so how did the performance compare?
And I don’t know why you think openSUSE discontinued XFCE and LXDE, because I’ve very recently installed both.
> Someone on an IRC channel suggested that my hardware is enough to run
> both Gnome and KDE provided I choose 32 Bit. Fact is the idle system
> load of a 64 Bit distro is much higher in comparison to 32 Bit.
Nonsense. What you claim as `fact’ is an anecdote based on your personal experience. I’ve installed SuSE/SUSE/openSUSE
on scores of machines for over a dozen years, I can enlighten you that the 64-bit CPU load is identical to that of a
32-bit system; the CPU loading using 64-bit instructions is in fact much more efficient. I suppose around 2005, there
were one or two broken 64-bit library binaries (around the time of Windows XP 64 bit), but those were software compile
issues that have long been resolved.
I have installed openSUSE 13.1 (Bottle) (i586) KDE and its running fine.
I wish I had created a thread about this before moving may be someone
would have told me this a long time back.
So what is the main message of your post? My guess is a recommendation to users of 64-bit systems:
- If you want KDE/GNOME performance, install 32-bit.
- If you are seeing a major slow downs, install 32-bit.
- If you want to reduce CPU load, install 32-bit.
If any of these are your intended messages, I’m afraid you’re just wrong. If you have seen favourable differences with
your 32-bit installs, it’s because you haven’t installed/configured your 64-bit system correctly. The only thing you’ve
given as evidence are your specs:
Specs : AMD 64 X 2 5600 +
Ram 2 GB
Nvidia 6150 SE
So did you install swap? If so what size? Did you install kernel firmware? What were your `top’ outputs? Did you compare
different kernels? For that matter did you compare different distros (e.g. you’ve mentioned Manjaro). How did you rule
out issues with your hard drive as to the cause of the slow down, since your machine is quite old and any reinstall on
a faulty drive can appear to speed it up albeit only temporarily.
The issue of performance is a complex. Don’t think for a moment that switching from a 64-bit to a 32-bit install
automatically improves performance. I can think of exotic reasons why a 32-bit install may `mask’ a problem that might
only come to light on a 64-bit system (e.g. bad RAM), but then the issue is the problem itself rather than the use of a
64-bit operating system.