Pointers Are More Abstract Than You Might Expect in C

Re:Pointers Are More Abstract Than You Might Expect in C by steveklabnik on Monday July 02, 2018 @01:56PM (#17443924)

Where do you get that 90/10 split from? Just curious.

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Re:Pointers Are More Abstract Than You Might Expect in C by jeremiep on Tuesday July 03, 2018 @02:42PM (#17452693)

Talks from Mike Acton and Scott Meyers, specifically "Data-Driven Development" and "CPU Caches and why you should care" respectively.

I forgot exactly where I got that number, but it's been a pretty good metric so far.

In a nutshell; the compiler is great a micro-optimizations and absolutely terrible at macro-optimizations. The former will get you a few percent of perf boosts while the later usually results in orders of magnitudes of performance gains.

Its near impossible to apply macro-optimizations at the end of a project without massive refactors.

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Re:Pointers Are More Abstract Than You Might Expect in C by steveklabnik on Tuesday July 03, 2018 @06:12PM (#17453986)

Cool, I'll check those out, thank you!

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Re:Pointers Are More Abstract Than You Might Expect in C by Narishma on Tuesday July 03, 2018 @06:29PM (#17454105)

I believe the 10/90 number may be from this talk, though I don't have time to rewatch it to confirm: https://www.youtube.com/watch?v=rX0ItVEVjHc

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