Re: [MLS] Some data

Thanks much Richard - this is very cool! Will any of the data (or maybe
just these transcripts you're generating) be released publicly?

In addition to what Brendan already suggested, just some basic summary
statistics about the distribution of group sizes would be really useful.
Also, understanding the frequency of group changes (adds/removes) vs
"regular" messages would help guide thinking about tradeoffs in designing
protocols, MLS and otherwise.

On Wed, Oct 16, 2019 at 5:27 PM Brendan McMillion <brendan=
40cloudflare.com@dmarc.ietf.org> wrote:

> This is great!
>
> I’d love to understand:
> - The distribution of message sizes (message = what the user actually
> types)
> - Does WebEx Teams use a sub-protocol for messaging metadata, like XMPP?
> How much overhead does it add?
> - How important do WebEx engineers consider compression? Given that human
> language / XML can have such high compression ratios
>
> > On Oct 15, 2019, at 8:56 AM, Richard Barnes <rlb@ipv.sx> wrote:
> >
> > Hey all,
> >
> > I've managed to extract histories for a collection of Webex Teams
> groups, a total of 950 groups (including 1-1 conversations) ranging in size
> from 2 to 5000 members.
> >
> > What data would people be interested in understanding from this data
> set?
> >
> > I'm currently working on extracting "transcripts" of
> init/add/remove/message events, with the idea that they could be fed into a
> simulator attached to some library to generate counts of actual crypto
> operations.  But it would also be easy to extract summary statistics, such
> as the inter-arrival rates for Adds / Removes, Add:Remove ratios, etc.
> >
> > One caveat is that Webex Teams allows self-add and self-remove, in
> addition to adds/removes initiated by someone in the group.  Self-adds
> account for ~6% of all adds, but self-removes (leaves) are 98% of all
> removes.  The latter might be an artifact of "server-initiated" removes
> being reflected as self-removes, but of course server-initiated removes
> have similar issues w.r.t. MLS.
> >
> > --Richard
> > _______________________________________________
> > MLS mailing list
> > MLS@ietf.org
> > https://www.ietf.org/mailman/listinfo/mls
>
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