On Tuesday, 17 January 2023 at 21:50:06 UTC, matheus wrote:
Question: Have you compared the timings between this way (With ranges) and a normal way (Without ranges)?
If you are intensively using ranges, UFCS or the other convenient high level language features, then the compiler choice does matter a lot. And only LDC compiler is able to produce fast binaries from such source code.
GDC compiler has severe performance problems with inlining, unless LTO is enabled. And it also allocates closures on stack. This may or may not be fixed in the future, but today I can't recommend GDC if you really care about performance.
DMD compiler uses an outdated code generation backend from Digital Mars C++ and will never be able to produce fast binaries. It prioritizes fast compilation speed over everything else.
I'm using D Online Compiler from different platforms but unfortunately I can't loop too much because they don't accept, but anyway a normal version runs almost twice faster than this version (With ranges).
Can you try to run the following diagnostics program on this D Online Compiler platform? https://gist.github.com/ssvb/5c926ed9bc755900fdaac3b71a0f7cfd
If you like I could send or post here a version without ranges to try out.
Please post it. This is interesting.
