Thanks for the heads up. One of the biggest goals driving this service is the fact that an incredible amount of awesome is going into Ruby 2 releases. Yet it's not straightforward for everyone to keep up to date with developments and because GC is work in progress, it's going to be difficult to run apps with optimal settings, especially with upgrade paths etc. We worked on this to primarily bridge that gap.
Yes, there's the ability to aggregate information from eg. several Unicorn worker instances on the same box for the same app and distributed too, but it's not exposed through the tuner, yet. That's a more accurate representation of how the GC behaves across a stack. Nothing's set in stone, we're still exploring and engaging for feedback.
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.
Hi Michael, it originally started with a focus on Rails only, but at the moment we also support test frameworks, pure Ruby (requires some minor work on the user end), ActiveJob and Sinatra soon. We'll rework the docs and landing page to reflect this. Thanks for your feedback.
