Event logging/Mobile

This page documents the results of Event logging analytics on Wikimedia mobile sites.

Background

Event logging allows us to measure usage and performance statistics of specific features on the Wikimedia mobile web.

Section toggling in Beta

Measuring the usage of the section toggling features (section open/close arrow and "jump back a section"/close section feature), and the impact of this navigation feature on client-side performance.

Note: This was a preliminary test of our data-gathering capabilities, not necessarily the way we will move forward with eventlogging in the future.

Events measured

Event name	Definition	What's tracked
Host	The hostname where the event originated	Project URL (e.g.: en.m.wikipedia.org, pt.wiktionary.org)
Beta	Tracks whether the event comes from the regular mobile site or the experimental Beta	Beta = 1
Session	The local time when the user first accessed the site and JavaScript began to load	Timestamp (UTC)
Delta	Time between session (above) and data event (below)	Time in milliseconds
Data	DOMReady, Toggling ready, Section loaded	Type of event: DOMReady (browser is ready to be interacted with), section toggling JavaScript is loaded, or section is toggled
Page	Page being accessed	Page title
Info	Section that is being toggled	Section number, type of section action (righthand arrow section toggle or "jump back a section"/close section)

Results

Section toggles

Below is a list of section toggle and "jump back/close section" actions performed in the observed period (Nov. 20-Dec. 13, 24 days). Sections and jump back actions are numbered according to order from top to bottom of the page (section 0 is lead section, section 1 is first section from the top, etc.).

Data table

Action	Number of uses
section_1	28,264
section_2	21,638
section_3	16,010
section_4	11,774
section_5	8,273
section_6	5,716
section_7	3,829
section_0	2,744
section_8	2,649
section_footer	2,350
section_9	1,689
section_10	1,129
section_11	718
section_12	537
jump back_1	405
section_13	371
jump back_2	288
section_14	253
jump back_3	221
section_15	178
jump back_4	171
jump back_5	122
section_16	122
section_17	97
jump back_6	89
jump back_7	64
section_18	58
section_20	58
section_19	49
jump back_8	44
section_21	30
section_23	24
section_22	23
section_edit1	21
jump back_9	20
jump_back_10	19
section_24	13
section_26	12
section_28	11
section_25	10
section_27	10
other	154
total	102,230

Delta

Delta overall:

  Min.   Median    Mean    Max. 
     13     5033   104200   51340000

Delta of DOMReady:

  Min.   Median    Mean   Max. 
     13     872    2963   3866000

Delta of Toggling JS ready:

   Min.   Median   Mean   Max. 
     109   2380    23480   26480000

Delta of Section toggle:

   Min.    Median   Mean   Max. 
     682   50240   243800   51340000

Charts

A graph of logged actions by top 10 hosts