Wednesday, January 7, 2009

the truth about 64bit ubuntu !

Being a loyal linux user since 2005 , I have tried everything , and I have been using 64bit Hardy Heron since its release but I couldn't get a Free 64bit CD of the Ubuntu 8.10 .
Canonical Company (the sponsor of ubuntu) doesnt' ship Free 64bit Ubuntu CDs anymore , in the past you could choose which architecture you want (32bit or 64-AMD) .
and nobody talked about it , neither Canonical nor ubuntu guys in the forums noticed that .

so I did a little research about it.

in university our professors tell us that a 64bit CPU is twice faster than a 32bit CPU just when you run a 64bit operation system on it.

but is 64bit ubuntu faster than 32 bit ubuntu ?

the 64bit Ubuntu is a simple re-compile of the 32bit source code and there is no optimization to take advantages of the 64bit circuits in your CPU , and I found out not only it is not faster but it is slightly "slower" than 32bit ubuntu . (Source)

64bit Ubuntu also has problems with Nvidia/ATI driver ,it used to have problem with Flash (not anymore) and compiz is buggy in 64bit ubuntu .

the only advantage of a 64bit ubuntu is for those who have more than 4GB RAM . (a 32bit CPU can not address more than 2^32= 4GB of a RAM) and those who need to work with files bigger than 3.2 GB (thats the biggest file size you can have in 32 bit environment)

therefore I am gonna install a fresh 32bit Kubuntu and forget about the 64bit until Ubuntu developers make a real-64 bit version (with optimized compile codes) .

by the way it would be better if Canonical was honest and would make an announcement about their not shipping 64bit version anymore instead of being quite and hoping nobody would notice it.

P.S : I made a topic in ubuntu forums, you can follow it .
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