printf() metaprogramming challenge

[Ola Fosheim Grøstad]

On Saturday, 25 May 2019 at 11:27:43 UTC, Patrick Schluter wrote:
> L1 instruction cache are small and the cost of code bloat is 
> only rarely counted. Benchmarks are overwhelmingly good 
> mannered concerning instruction caches.

Yes, in benchmarking one should only test full applications… I 
guess invalidating the cache every N iterations is a possibility 
in a synthetic benchmark.

> This makes that optimisation for instruction cache are 
> neglected.

Right, I'm interested in seeing what Mike Franklin does for 
embedded. A minimalistic framework would be interesting to see.

> concrete application. With valgrind cachegrind I discovered 
> that the misses in instruction cache made a big, big, 
> difference.

Interesting, I really need to try that cachegrind some time. 
Sounds very useful.