[Galene] Re: Additional stats

[Juliusz Chroboczek <jch@irif.fr>]

Hi Stefan,

> I would be interested in making that endpoint an optional feature in Galéne, and I would additionally be interested in collecting ICE information.
> 
> Is there interest in such features, and would it be OK for me to use GenAI (Claude) for the implementation?

Extra statistics would be useful.  However two caveats:

1. Respect user privacy.  For example, the current endpoint does not
   expose IP addresses or user names.  This is important: people are using
   galene.org for intimate couple chat (I know because the group names are
   exposed), and there is at least one priest using Galene for online
   confession (he's using his own instance, thankfully).

2. Don't harm performance, at least when the admin is not monitoring.
   Galene is very carefully constructed to scale across many cores.  For
   example, we avoid locking whenever possible, and we try to avoid atomic
   variables that are shared between more than a few threads.

   Note in particular that the Go Prometheus library uses global atomics,
   which is a bad idea, since it causes cacheline bouncing.  (The right
   solution would be to have per-thread or per-CPU counters, together with
   periodic reconciliation.)

I guess what I'm saying is that I'd love you to experiment, but please
don't be discouraged if I don't accept your first attempt.

-- Juliusz