this post was submitted on 11 Jun 2025
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Programming
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Why?
(A super slimmed down flavour of) Java runs on fucking simcards.
And it powers a lot of phones. People generally don't like it when their phone needs to charge all the freaking time.
I ran Linux with KDE on my phone for a while and it for sure needed EVEN MORE charging all the time even though most of the system is C, with a sprinkle of C++ and QT.
But that is probably due to other inefficiencies and lack of optimization (which is fine, make it work first, optimize later)
Yeah, and Android has had some 16 years of "optimize later". I have some very very limited experience with writing mobile apps and while I found it to be a PITA, there is clearly a lot of thought given to how to not eat all the battery and die in the ecosystem there. I would expect that kind of work to also be done at the JVM level.
If Windows Mobile had succeeded, C# likely would've been lower as well, just because there'd be more incentive to make a battery charge last longer.
C# has been very optimized since .NET Core (now .NET). Also jit compiler and everything around it.