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Which is better on imac g5 64ul or 32ul?
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mrbig4545
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PostPosted: Tue Jun 20, 2006 9:44 am    Post subject: Which is better on imac g5 64ul or 32ul? Reply with quote

Hi i'm going to be installing gentoo 2006 on my iMac g5 2ghz, the one before the isight, and i was just wondering which mode to use, 64 bit or 32 bit. Which would be faster / more responsive, as i understand it the pre-emptiable kernel crashes all the time on ppc, so i need the fastest option, as ill be using it as my desktop machine.

Sorry if this has already been asked, but i did a quick search and didn't see anything.

Thank you

Mark
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_savage
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PostPosted: Tue Jun 20, 2006 2:56 pm    Post subject: Reply with quote

I don't think that the width of addresses and operands has anything to do with the speed. Personally, I'd go with the 64-bit because your address space is larger, and you get a handful of interesting instructions more that explicitly deal with 64-bit.
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mrbig4545
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PostPosted: Tue Jun 20, 2006 7:30 pm    Post subject: Reply with quote

Cool, thats what ill go with then.
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rangerpb
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PostPosted: Thu Jun 22, 2006 4:35 pm    Post subject: how many bits.... Reply with quote

Frankly, with a G5 I think it boils down to how you are going to use the box. If it's a desktop, then you will likely want a browser...if you want anything other than konqueror, then you will have to run the 32ul. The 64ul has no working Mozilla variant.

Secondly, if there is no need for the large addressing, then 32ul is still a good choice. The 32 generally has newer toolchains and almost 4x the packages.

On the other hand, should this be used a sserver and you have plenty of physical memory, the 64ul is an excellent choice.
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ezeki3l
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Joined: 16 Aug 2006
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PostPosted: Wed Aug 16, 2006 9:50 am    Post subject: Reply with quote

I've just attempted a 64ul install on my Imac G5 rev.b last evening.

Is the situation still the same with 64ul or have packages been added?
Is there any noticeable speed difference on the desktop and do processor intensive tasks (DVD encoding, for example) profit form 64 bit?
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