Linux 64 or 32 bit system, the pros and cons?


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Decide to put Archlinux and then there was a dilemma, 32 or 64 bits with 4 gig of frames and Intel Core 2 duo?


On the one hand, the iron fully supports the 64-bit distro, on the other hand pae kernel in the Linux copes with its task and sees without dancing with a tambourine all 4 gig. (Pokrainei in Ubuntu 10.10), flash on 64-bit is even more flawed than 32x, but still according to statistics more people use it the 64 bit systems, see www.omgubuntu.co.uk/2010/09/what-architecture-is-y... and habrahabr.ru/blogs/personal/98179/, also known under 64 bits, the program consumes a bit more resources.


So, how justified is installing a 64 bit system on Linux?

I would love to hear the opinion of habrovky on this issue.
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7 Answers

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Disadvantages х86_64:
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1) Higher memory consumption(5-10%)
2) More space on the hard drive for installed 32-bit libraries.
3) Memory is still 32-bit libraries.
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The advantages of x86_64
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1) In the binary distributions(such as Ubuntu), most applications will work going from i486 to i686. While there turned off most extensions of the processor, like sse and mmx. In juniper this is not essential since the Assembly comes with a i686, nevertheless the difference is still there.
If you are using x86_64 system, all packages will be compiled with compatibility with x86_64 that includes a far greater set of extensions, for example sse2, which means increased responsiveness and visible performance improvement.
2) No need to use brake crutches type pae.
3) In some operations, like encoding/decoding video/audio performance increase will be very substantial.
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As you can see no much difference. Using х86_64 the performance win and lose in the memory. Using x32 — on the contrary. Given that memory you have 4GB — I would choose performance because it little never.
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Tales of mythical glitches 64 bit systems — just stories. Flash a long time ago, completely normal(as it is possible to flash) works or through nspluginwrapper, or you can even use a native x64 beta version from Adobe-labs.
All sorts of blobs, like Skype and Google earth, are also working without any problem, though, and pull over a bunch of 32-bit garbage.
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put on desktop x32 with PAE and do not suffer.
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now sitting on the juniper 64битном. 4 GB of RAM and a Hairdryer x4.
particularly difficulties are not felt.
Skype pulled some 32 bit libs... works without any problems. the rest is not really something annoying. for me as an end user, generally problems more than 32 did not.
about the performance do not say anything. the system was put on new hardware.
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>Decide to put Archlinux and then there was a dilemma, 32 or 64 bits with 4 gig of frames and Intel Core 2 duo?
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Only 64 bit and nothing else. PAE crutch and even brake, and any kind of Skype Yes flash is working fine.
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Generally, in my experience, on the desktop it is always better to put the x86. There is very little software that requires memory for one process over the limit x86. More precisely, it is almost there. This architecture uses a lot of desktopicon, so she's more streamlined in terms of desktops.
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In х86_64 on my PC usually are frequent bugs with the drivers, there are all sorts of flush, etc. Application for this architecture, consume more RAM and on disk, are often put for compatibility emulation x86.
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х86_64 good on the servers, it goes there without any LowMem/HighMem, more sharpened by the server load, and again, tested on more servers.
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arch amd64, do not experience problems.
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I initially tested 64-bit, but namuchaetes with fleshpleera, Skype and anything else (including like firewood under the ATI) decided that the bird in the hand is safer %)
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Special increase performance, I felt, although I must say that I do not use it serznyh programs and games. Basically the programming for the web and ofisnye. heavy only naverno virtualbox :)
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This is purely my IMHO
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