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Re: [POLL] To continue 64 or not?



I have switched to 64-bit because I do scientific calculations and the added address-space is crucial, and the added speed is, well, very nice. I also think that 64-bit linux is not really ready for prime-time. It's not just the absence of a 64-bit OO (flash is completely superfluous). I'm just finding that things like firefox and gnome seem to break more often in 64bit. I have set up a chroot that is working OK, but it isn't dazzling me. I'm spending much more time on system issues than I would prefer.

I have a question about your claim of performance degradation. See below.

tomek.fizyk@op.pl wrote:
I thinlk you must anwer yourself a question:
What do you need more: 64bits or all the software that is not available for
64bit debian?

I chose 64bits (need 'em for my scientific calculations) though
am having the same problems with flash, ooo, etc, and have to wait
patiently for 64bit versions of the software.

There are other 64bit linux distros that are 32bit compatible, but, as
someone mentioned here some time ago, this 32bit compatiblity makes
them slower than pure 64bit debian).

Is this degradation true for all applications? To be clear, are you saying that if I compile a fortran code using either pgi, or the 64-bit libraries of g77, that it will run more slowly on a 32-bit compatible distro than it will on a pure-64 bit Debian?
If so, why?
Użytkownik Andrew Robinson <andrew.rw.robinson@gmail.com> napisał:
Looking for some constructive feedback on other people's experiences
with amd64 as a workstation. I have been only using it a few weeks,
and the setup is a pain due to the amount of 32 bit only programs. I
am having some issues with:

Eclipse + ExadelStudio plugin (plugin is 32-bit only)
Firefox + Flash (Flash is 32-bit only)
OpenOffice
Cedega
Wine

Unfortunately, this makes up a decent percentage of what I run daily
(especially eclipse). I am the type to sacrifice pain for new
functionality, but this one has got me thinking, is it worth it?

As a server I would think it would be great but as a workstation it
seems to be a pain. The chroot jail works, but having to maintain the
apt libraries (I am using etch, so they change fairly often), it more
of a pain.

For those that have the knowledge, I know that the 64 bit architecture
is faster due to addressing and such, but is it that noticeable? Also,
I have read that the 32 kernel still supports the dualcore nature of
the amd64 even though running in 32 bit mode (is this true, my source
wasn't 100% reliable).

Just looking for some constructive feedback on other's opinions.

-Andrew


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------------------------------------------------------------------------

Looking for some constructive feedback on other people's experiences
with amd64 as a workstation. I have been only using it a few weeks,
and the setup is a pain due to the amount of 32 bit only programs. I
am having some issues with:

Eclipse + ExadelStudio plugin (plugin is 32-bit only)
Firefox + Flash (Flash is 32-bit only)
OpenOffice
Cedega
Wine

Unfortunately, this makes up a decent percentage of what I run daily
(especially eclipse). I am the type to sacrifice pain for new
functionality, but this one has got me thinking, is it worth it?

As a server I would think it would be great but as a workstation it
seems to be a pain. The chroot jail works, but having to maintain the
apt libraries (I am using etch, so they change fairly often), it more
of a pain.

For those that have the knowledge, I know that the 64 bit architecture
is faster due to addressing and such, but is it that noticeable? Also,
I have read that the 32 kernel still supports the dualcore nature of
the amd64 even though running in 32 bit mode (is this true, my source
wasn't 100% reliable).

Just looking for some constructive feedback on other's opinions.

-Andrew



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Senior Research Physicist
Air Force Research Laboratory
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KAFB, NM 87117-5776

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