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This /maybe/ makes sense if you are CPU bound. Uh, for everything else, I don't really see it competing with virtualized X86. One of my 8 core, 32GiB ram so
by lsc 16y ago
This /maybe/ makes sense if you are CPU bound. Uh, for everything else, I don't really see it competing with virtualized X86. One of my 8 core, 32GiB ram socket G34 opterons? comes in well under 200 watts, including disk and power supply inefficiencies. are those beagle boards under 3.3 watts?
also, my capital costs are lower. one 32GiB reg. ecc ram, 8 2.0ghz core and 4 500gb disk server comes out to around $2500 in parts, give or take. That's a lot less than 60 of those beagle boards.
Of course, it's quite possible that 60 arm cores are better than 8 opteron cores, even though it's close to equal on ram.
I will revisit this issue when the many-core ARM chips start shipping, and when arm boards start coming with socketed ram.
- rbanffy 16y agoActually, it makes a lot of sense if you are IO bound too. Having little efficient ARM cores keeping your disk and/or network channels supplied is better than doing the same with a 90% idling x86.
- lsc 16y ago(ecc) ram cache is astoundingly important to have I/O at bearable speeds, and the beagle boards max out at 512MiB ram, about what I expect my next cellphone to have. Again, we are in a situation where the ARM boards will become radically more useful when they come with socketed ram modules.
- rbanffy 16y agoNobody is seriously considering those boards for servers, but server boards built around ARM cores. The only question is the peripheral logic around those cores.