Here are some timings for "obabel -:C -osmi" for the first run of the day (note that OB here is on a network drive so I would guess this will be slower than for most other people):
real 0m1.981s user 0m0.029s sys 0m0.086s and the second: real 0m0.032s user 0m0.020s sys 0m0.010s Personally, I don't see this as a problem, and I have no interest in making a complex system even more complex. Regards, - Noel On Wed, 8 Jan 2020 at 18:53, Geoffrey Hutchison <geoff.hutchi...@gmail.com> wrote: > > In theory one could load only the plugins needed and in that way save > startup time and memory. However in OB, once you load one plugin all > plugins are loaded (one by one, making it slow). > > Sounds like a great project. If you or anyone else wants to improve the > plugin loading code to load on demand, please let me know. > > Open Babel is a purely volunteer project, so features are added / coded > when people have a need and write the code. > > It's been ages since I benchmarked the plugin loading code (i.e., well > over 10 years) but my conclusion back then was that: > - it's a meaningful time delay for short tasks, but those are fast anyway > - when you're repeating short tasks (e.g., using the obabel binary > repeatedly in a shell script) most of the plugins get cached by modern OS > - for long tasks, it's not the time-limiting step > > There were two reasons for them: > - they're much easier to write than adding to a monolithic library. (Does > anyone want 100 API calls for different formats, etc.?) > - they can be offloaded as needed by the OS > > I'm sure someone could code up an index/cache to improve plugin loading. > Please do. > > In the meantime, as you note, it's possible to compile static and/or hack > the build as you wish. > > -Geoff > > _______________________________________________ > OpenBabel-Devel mailing list > OpenBabel-Devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/openbabel-devel >
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