[solved] Iterating a normal iterator with rayon

[quadrupleslap]

I have a normal (sequential) iterator and I want to map each item and collect the resulting items. Would it be better to use a for-loop in a rayon::scope, or to collect the items into a temporary Vec and then use rayon's parallel iterator API on that Vec? I'm pretty sure the former option would be better, but the rayon docs recommend not using the scope API for some reason.

[quadrupleslap]

nevermind, found the solution.

ELF processing in Rust

A friend posted the following pipeline to find all the firmware files for a set of Linux kernel modules: find /lib/modules/4.9.0-2-amd64/ -name '*.ko' | xargs modinfo -F firmware > /dev/null As an exercise in systems programming, I was curious how easily it could be recreated in Rust, and as a bonus, run in parallel on multiple modules using rayon. After doing so, I thought others might find it interesting as well. (Note that the pipeline didn't have any particular performance issues, and al…