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An unexpected perf feature
LWN.net Weekly Edition for May 16, 2013
A look at the PyPy 2.0 release
PostgreSQL 9.3 beta: Federated databases and more
LWN.net Weekly Edition for May 9, 2013
But if you are trying to build software for many different devices (like a disto needs to), then you can't count on optional features being there
Supporting 64-bit ARM systems
Posted Jul 15, 2012 4:42 UTC (Sun) by jzbiciak (✭ supporter ✭, #5246)
Your point stands, though, for devices that would have to run the fallback version. Those would benefit from ARMv8 without having to use NEON. Plus, keeping the multiple versions around takes up more space, wrangling them is added complexity, etc. etc.
For something like a cell phone, where interpreters like Dalvik have a JIT, the compiled code can match the exact CPU in the phone. After all, that isn't exactly a user-serviceable part. ;-)
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