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strangepork
June 29th, 2009, 09:58 PM
Assuming the mother board can handle it, whats the max ram i can use in 9.04 amd64 ubuntu please? what about 9.04 x86?

thanks!

shifty_powers
June 29th, 2009, 09:59 PM
in 64-bit far more than you'll ever be able to fit in the near future. in 32-bit then you can fit as much as you please, but there is an address limit of about 3.5gig.

paul_be
June 29th, 2009, 10:02 PM
this may answer:
http://ubuntuforums.org/archive/index.php/t-1128488.html

starcraft.man
June 29th, 2009, 10:03 PM
The emergence of the 64-bit architecture effectively increases the memory ceiling to 264 addresses, equivalent to approximately 17.2 billion gigabytes, 16.8 million terabytes, or 16 exabytes of RAM. To put this in perspective, in the days when 4 MB of main memory was commonplace, the maximum memory ceiling of 232 addresses was about 1,000 times larger than typical memory configurations. Today, when over 2 GB of main memory is common, the ceiling of 264 addresses is about ten trillion times larger, i.e., ten billion times more headroom than the 232 case.

Wikipedia. (http://en.wikipedia.org/wiki/64-bit)

I don't think you ever need worry in the short term about hitting the 64 bit wall.

nmaster
June 29th, 2009, 10:05 PM
i was beaten to it.

ELD
June 29th, 2009, 10:10 PM
It just a pity about 64bit support from a lot of things.

RD1
June 29th, 2009, 10:13 PM
640K ought to be enough for anybody.
Bill Gates :lolflag:

lykwydchykyn
June 29th, 2009, 10:22 PM
If you install the server kernel, you can use up to 64 GB in 32 bit (x86) Ubuntu. That's what I do, I had too many compatibility issues with 64 bit.

strangepork
June 29th, 2009, 10:47 PM
good to know. the google i found for 6.06 said it was capped at 8gigs, even for 64bit, which boggled me!

Sef
June 30th, 2009, 12:44 AM
It just a pity about 64bit support from a lot of things.


With GNU/Linux, almost all programs havea 64-bit equivalent.

ELD
June 30th, 2009, 10:14 AM
With GNU/Linux, almost all programs havea 64-bit equivalent.

True for a lot of things. I will eventually use 64bit Ubuntu when i get 4GB ram.

lisati
June 30th, 2009, 10:17 AM
True for a lot of things. I will eventually use 64bit Ubuntu when i get 4GB ram.

Why wait? I'm using 64-bit with 2Gb RAM

magh-87
June 30th, 2009, 10:26 AM
Why wait? I'm using 64-bit with 2Gb RAM

Perhaps I should do the same then.. I'm using 32bit with 2gb of ram on my old pc which now hosts ubuntu on it.. I'm curious about what sort of improvements that I could see in it as a system though. Additionally, I'm also considering turning that computer into a server for external network uses (primarily: hosting friends sites, etc)

mcduck
June 30th, 2009, 10:52 AM
Perhaps I should do the same then.. I'm using 32bit with 2gb of ram on my old pc which now hosts ubuntu on it.. I'm curious about what sort of improvements that I could see in it as a system though. Additionally, I'm also considering turning that computer into a server for external network uses (primarily: hosting friends sites, etc)
Most common situations where 64-bit system increases performance would be media-related tasks, like audio and video encoding/processing, 3D-rendering and image processing.

http://www.tuxradar.com/content/ubuntu-904-32-bit-vs-64-bit-benchmarks

scorp123
June 30th, 2009, 10:54 AM
If you install the server kernel, you can use up to 64 GB in 32 bit (x86) Ubuntu. That's what I do, I had too many compatibility issues with 64 bit. Bingo. Same thing here. I use the "linux-server" kernel package for 32-bit. And it "just works" whereas 64-bit was giving me too many headaches.

ELD
June 30th, 2009, 11:05 AM
Why wait? I'm using 64-bit with 2Gb RAM

I wait because i have it setup how i like it :P, and don't want to change unless i really need to, which for now i don't. Although it may be worth trying anyway for when i do upgrade and then i can see if the lockups i get exist in the 64bit version too.

Paqman
June 30th, 2009, 11:50 AM
good to know. the google i found for 6.06 said it was capped at 8gigs, even for 64bit, which boggled me!

Most mobos seem to be 8GB max, so in practical terms it usually is the case.