693340 - request for Telemetry e4x, customIter data

Status: RESOLVED FIXED

(Mozilla Metrics :: Data/Backend Reports, defect)

Description

[Luke Wagner [:luke]]

Firefox beta should now have simpleMeasurements.js.e4x and simpleMeasurements.js.customIter.  These are reported on the telemetry dashboard as averages (currently 0 for both, I believe the number is being rounded).  What we'd like to see is what percent of telemetry pings have exactly 0 for both of these fields.  To be clear, this would be the percent of pings that do have e4x/customIter, not the percent of all pings (since this was added recently).

(By the way Daves, the ping reports the number of *content* XML objects created since startup, which wouldn't included the addons that dherman just reported use e4x.)

Comment 1

[mroldan]

Luke,
In the latest version of the dashboard (first draft available by the end of this week) we will replace the averages with percentiles. For example we will show

simpleMeasurements.js.e4x:
 # documents / percentil 25 / percentil 50 / percentil 75

For calculating the percentiles we take just the pings that do have values.
We will not show the % of pings with exactly 0, but the percentiles will help to understand the distribution. Is this ok for you?
Carina

Comment 2

[mroldan]

Luke,
FYI the current figures are:

js.customIter:
# of documents with value zero = 274161 = 99.99% of total (274162)

js.e4x:
# of documents with value zero= 264266 = 96.39% of total (274159)

Comment 3

[Luke Wagner [:luke]]

Thanks!  On a side note, for a lot of the telemetry the JS team would be doing (showing that a condition rarely occurs) it would also be really useful to have 95, 96, 97, 98, 99th percentiles.

Comment 4

[Pedro Alves]

Interesting information, can you get us a list of them so we can try to include this in the next version?

Comment 5

[Luke Wagner [:luke]]

Everything, really: simpleMeasurements.js.*.

Comment 6

[Pedro Alves]

Luke, in the meanwhile can we close this bug? Need something else for now?

Comment 7

[Luke Wagner [:luke]]

Of course; I forgot :)