Wikipedia Dynamic Sections Measurements

	A	B	D	E
1	All Tests are run with caching disabled with an Android 4.0.4 native browser We measure DOMContentLoaded (https://developer.mozilla.org/en-US/docs/Web/Reference/Events/DOMContentLoaded?redirectlocale=en-US&redirectslug=DOM%2FMozilla_event_reference%2FDOMContentLoaded) time in milliseconds: This is the time taken till the DOM has loaded from the user receiving a page till javascript runs and the page becomes fully functional/readable. The second thing we measure is Toggling - this is the time taken from the initial page being received to it being possible to toggle any given section. The results show that DOMContentLoaded event fires quicker meaning the reader can read sooner, however the time taken to be able to toggle increases.
2	Host	localhost	Host	localhost
3	Device	Android 4.0.4	Device	Android 4.0.4
4	Web page	Barack Obama	Web page	Barack Obama
5	Dynamic sections	NO	Dynamic sections	YES
6	DOMContentLoaded	Toggling (ms)	DOMContentLoaded	Toggling (ms)
7	981	1333	233	2966
8	2899	3233	315	2780
9	2607	2925	185	2170
10	3538	3871	167	1871
11	3854	4248	199	1988
12	2291	2614	176	1802
13	2988	3437	190	1725
14	1097	1452	169	2006
15	4868	5244	206	1688
16	4063	4396	326	2299
17	2606	2978	186	1873
18	2607	2931	187	1584
19	3824	4208	202	1804
20	2011	2484	170	1725
21	2058	2395	177	1616
22	1259	1621	360	2399
23	1,717	2,158	173	2,216
24	1672	2003	183	2202
25	903	1252	163	1817
26	986	1356	163	1752
27	889	1243	170	1695
28	1374	1682	159	2134
29	853	1198	174	2083
30	858	1204	332	2279
31	926	1386	197	2216
32	972	1326	180	1932
33	910	1263	167	1864
34	1774	2108	147	2130
35	963	1316	200	1688
36	1,029	1,371	165	1,877
37	1979.233333	2341.2	200.7	2006.033333
38			-89.86%	-14.32%
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41	In summary, enabling dynamic sections decreases the time from which the user receives the page to the time they can make use of javascript modules - e.g. click a reference, do a search by a significant 90% On the minus side, at best case, it also increases the time till a user can toggle a section by 30% - on the Barack Obama article this is equivalent to a second. Note that the summary is perfectly readable during this time. More details in the commit here: https://gerrit.wikimedia.org/r/27774 Of course these tests do not take into account the decreased payload we send the phone and the quicker response time (which hopefully is a no-brainer). I ran the tests on 15 samples on an Android 4.0.4 stock browser.
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