ImPlot Very Long Compile Time

[rishineedscookies]

I'd love to use ImPlot, but unfortunately it completely bloats my compile times from a few seconds to >30 seconds. I'm not entirely sure what the root of the long compile times is since there's only a few thousand lines of code which should normally compile near instantly on a modern computer. I've tried using incremental linking, unity builds, multithreaded compiles, but they are all very slow because of ImPlot. Is there a plan or direction to try to improve the compile times?

[epezent]

Thanks for raising this issue. It's something I'm aware of and realize has gotten out of hand. The trouble maker is implot_items.cpp, which is template and inline heavy. You can speed up compilation of this file by defining IMPLOT_NO_FORCE_INLINE. Past testing suggests extreme inlining provides a noticable performance boost to ImPlot, but it does unfortunately bloat the compile time. I have some work in progress that may improve this a bit, and I've considered omitting some of the supported data types by default to cut down compile time/size even further (see #328).