On 19/09/2017 3:54 AM, Leif Oines wrote: > Thanks for running those numbers Mark. I've tried to recreate the same > thing using the sync_summary_v2 derived dataset in re:dash. I suspect > that since you're pulling raw pings perhaps we should trust those > more... but I could be wrong. for comparison, below are the analogous > numbers I'm getting from re:dash > (https://sql.telemetry.mozilla.org/queries/38529 > <https://sql.telemetry.mozilla.org/queries/38529>). they are based on > the entire sync_summary_v2 dataset for the past 7 days. > > version counts prop > 48 1 0 > 50 47,569 0.01 > 51 53,285 0.01 > 52 500,793 0.06 > 53 136,974 0.02 > 54 906,476 0.11 > 55 5,987,420 0.76 > 56 92,960 0.01 > 57 19,784 0 > > > so, according to these numbers versions 52 and up should cover 98.7% . > that's pretty close to what Mark estimates. however I have a couple > questions/comments: > > 1. Mark you said that your numbers are based on a 10% sample, yet they > seem to be around the same order of magnitude as my numbers. as far as i > know sync_summary_v2 is not a sampled dataset, so do we know what the > difference there might be?
I just counted "pings" - where each ping may contain a number of "syncs" - so I guess your data suggests we see around 10 syncs per ping (which sounds about right) > 2. Apparently we didn't land any client-side telemetry for sync until > version 47 or so (i think?). that means that when we count users based > on FxA (not sync) stats, we will see a longer tail of users with older > versions. so when making this decision maybe we should pay attention to > that? It turns out we actually landed it in 50! I'm sure that somewhere there is data for Firefox in general - indeed, I guess we really just need the same query run against the "main ping" - I'll have a go at that... > with that in mind here are the comparable numbers for the FxA data. I > omitted ios devices and versions with only 1 user: > https://sql.telemetry.mozilla.org/queries/38604 The other thing I don't have a handle on is why these users are hitting FxA at all. My hypothesis is that the vast majority of Sync users visit accounts.firefox.com when configuring a device, but rarely after that. My gut tells me that it should be rare that a user using 49 would be configuring that device - I can much easier understand they configured it when 49 was current. Is there any reason we expect Firefox versions to have a different distribution when hitting FxA vs the general population (and indeed, do we expect either of those to be different than those actually syncing) /me shrugs... Cheers, Mark _______________________________________________ Sync-dev mailing list [email protected] https://mail.mozilla.org/listinfo/sync-dev
