Speed up YANG bootstrap at boot

[troglobit]

Description

The YANG bootstrap step takes a bit too long at boot. We should investigate if it's possible to keep /dev/shm/sr_{main,mod,ext} from buildtime in the rootfs to speed it all up.

Additional Information

The bootstrap script calls sysrepoctl (possibly twice) followed by sysrepocfg, and for each invocation all yang models are read. This is slow even on a fast x86_64 system, so it might be interesting to see if this functionality could be baked into confd instead. Meaning only creating one sysrepo context once instead of every time something needs to be done.

General Information

Anyone can help out by sponsoring development of new features or contributing pull requests.
Please use this issue for discussions related to the feature.

[rical]

There's multiple ways we could go about speeding this up. Ranging from mmap of binary data (danger danger) to pre building a shared library of all YANG models and loading it dynamically in all users. It's definitely improvable but what the best solution is needs further investigation.