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Ubuntu 9.10

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December 4, 2009 12:26:14 AM

I installed Ubuntu 9.10 in my previous build, but now I have a new motherboard and CPU.
I want to reinstall it, but I was thinking if it's worth it to get the 64 bit version.

What would be the pros/cons of it?

Also I read that the 64bit version had a lot of bugs.

I trust your opinions more than the ones from a guy that install Ubuntu just to do a quick review.

Thanks in advance.

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December 4, 2009 2:52:36 AM

Pros:

0. faster

1. bigger files

2. bigger filesystems

3. can run 32bit and 64bit apps

4. can address more memory

5. etc, etc


Cons:

0. None


Other comments:

It requires more disk space if you install both 32bit and 64bit libraries.

Where did you read that the 64bit version has a lot of bugs?

Good luck :) 
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December 4, 2009 3:18:31 AM

linux_0 said:
Pros:

0. faster

1. bigger files

2. bigger filesystems

3. can run 32bit and 64bit apps

4. can address more memory

5. etc, etc


Cons:

0. None


Other comments:

It requires more disk space if you install both 32bit and 64bit libraries.

Where did you read that the 64bit version has a lot of bugs?

Good luck :) 


OK, you convinced me.
I don't remember, where did I read that, probably on yahoo's technology section (that's why I thought of asking here).
The CD just finished burning, I will start the installation now.

Thanks
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December 5, 2009 9:45:39 AM

0. 64bit isn't any faster or slower in itself, but can be faster due to (4).

1. Maybe but not yet an issue as we haven't really reached the limit yet.

2. Maybe but not yet an issue as we haven't really reached the limit yet.

3. true

4. true

5. 64bit Linux has been out for much longer than 64bit Windows, and never really had any of the issues the early 64bit Windows had (XP).

I've been using 64bit Ubuntu and OpenSuse for a while now and they are brilliant.
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December 5, 2009 11:33:35 AM

0. x86_64 can be 25-85% faster on true 64bit hardware depending on the architecture, the software and compiler optimizations.

This is certainly true on AMD 64bit hardware which is definitely 25-85% faster running most 64bit apps versus the same 32bit apps due to the wider 64bit registers and the fact there are more of them as well as the new instructions added to the architecture.

In x86_64 AMD doubled the number of general purpose from 8 to 16.

The number of XMM/SSE registers was also doubled from 8 to 16.

5. Absolutely right, Linux supported x86_64 immediately after x86_64bit CPUS became available. I've been running it practically since day one. Linux was many years ahead of windows in x86_64 support and arguably still is. :) 

Semper fi :) 
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December 5, 2009 11:36:22 AM

In fact I'm under the impression AMD gave some developers pre-release hardware so they could have x86_64 versions of Linux ready to go for the hardware launch. :) 
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December 5, 2009 11:50:01 AM

0. 64bit P4s are actually slower because they emulate 64bit mode.

Some Intel CPUS behave differently than AMD CPUS so your mileage will vary.

Semper fi :) 
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