[pencilcheck]

Looks like what they are collecting is in this array:

[TuneMyGc.walltime, TuneMyGc.peak_rss, TuneMyGc.current_rss, stage, GC.stat.values_at(*stat_keys), GC.latest_gc_info, meta]

In this file: https://github.com/bear-metal/tunemygc/blob/70a02b9dd252c6f5...

Or in their protocol.md: https://github.com/bear-metal/tunemygc/blob/master/doc/proto...

[methodmissing]

Yes, what we wanted to communicate was that nothing proprietary to your app or code gets sent on the wire. Just a few numbers about memory usage and heap status the tuner analyses.