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Ubuntu 16.04 LTS 32-bit vs. 64-bit Linux Performance
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Originally posted by rob11311 View PostAMD64 specified more registers and function parameter passing using those, so basically less memory references which can stall
Floating point can also assume SSE2 at least, rather than the old 387 style FP unit compatible 80bit floats.
Code which has lots of pointers may run slower, especially if it exceeds L1 cache, because of the doubling of memory address sizes.
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And yeah, in the benchmarks I've seen, the benefits are negligible... no significant performance gains, and while the memory savings can be more substantial, they don't make up for the disadvantages unless you're running a very constrained system already.
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Originally posted by Hammond View PostOne reason to run Linux 32 is to avoid 32 bit libs when running Steam games (native or with Wine).
Originally posted by Hammond View PostAnd I'm not sure Blizzard has made WoW 100% 64 bit yet.
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Originally posted by Tomin View PostOn 32 bit you'll use 32 bit libraries anyway, but there aren't additional 64 bit copies. I guess you meant something like that.
Originally posted by Tomin View PostSee the link.
(I was thinking if I needed 64 bit libraries or not).
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