On Thu, 2022-03-03 at 15:28 -0800, Tim Orling wrote: > > > On Thu, Mar 3, 2022 at 9:16 AM Richard Purdie > <[email protected]> wrote: > > On Thu, 2022-03-03 at 17:14 +0000, Ross Burton wrote: > > > On Thu, 3 Mar 2022 at 16:34, Richard Purdie > > > <[email protected]> wrote: > > > > This removes a further 1600 files from sstate handling and lets python > > > > create the ones it wants at runtime which is likely much better overall > > > > for performance. > > > > > > Playing devil's advocate: doesn't having them in sstate mean they're > > > generated once and hardlinked, instead of needing to be generated for > > > every recipe which runs pythonnative? > > > > > > Whilst I can't disagree that 1600 files being dropped from sstate is > > > good, we're just punting the recompile step to every recipe when it > > > runs python code. > > > > > > I guess the question here is how long does the Python library take to > > recompile. > > > > > At runtime it should only generate pyc for modules actually used?
Yes. > > Another consideration is that there are many sysroots pulling in python3- > > native > > which don't run python and they're only there as there are python scripts > > being > > added which means python has to come too. > > > > I suspect for that reason it could be a net win but it is a tough call. > > > > I tend to be in favor of the reduced number of files moving around. I suppose > we could do some timing comparisons if we really care. It will be a trade-off > of network/io vs compute/io, correct? Yes. I suspect the compile cost is tiny compared to the io/network cost of chucking so many small files around when I suspect they're not used that often. Cheers, Richard
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