[SPIKE] Investigate how Android app performance holds up when making multiple API calls for Search
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	JTannerWMF
	Aug 1 2024, 2:34 PM

Description

Background
The team is working to improve search results by offering recommendations based on user behavior. This task is to investigate if the performance of the app or APIs used would be impacted as a result of this feature.

Task

Create quick demo of performance for results that include multiple API responses
Create quick demo of performance for results that only comes from one API response depending on the recent opened article/ visited location/ current languages

APIs to Evaluate

Morelike API (based on your recent search or recently opened article)
Rest API (mostly only Top read)
Nearby API (based on your current location, or your recently opened article)

Related Objects
Search...

		Status	Subtype	Assigned	Task
		Open		None	T370117 [Epic] Recommend Articles in Search on Android App
		Resolved		cooltey	T371613 [SPIKE] Investigate how Android app performance holds up when making multiple API calls for Search

Event Timeline

JTannerWMF created this task.Aug 1 2024, 2:34 PM

Restricted Application added a subscriber: Aklapper. · View Herald TranscriptAug 1 2024, 2:34 PM

JTannerWMF triaged this task as Medium priority.Aug 1 2024, 2:34 PM

JTannerWMF moved this task from Epics in Progress to Ready for dev on the Wikipedia-Android-App-Backlog (Android Release - FY2024-25) board.

cooltey moved this task from Ready for dev to Doing on the Wikipedia-Android-App-Backlog (Android Release - FY2024-25) board.Aug 1 2024, 4:05 PM

Hi @JTannerWMF

The SPIKE is completed, and although the logic of loading APIs can still be improved, I believe there are some beneficial results:

Demo: https://www.youtube.com/watch?v=8tWi3jdz5A8
APK: https://github.com/wikimedia/apps-android-wikipedia/pull/4859

Create quick demo of performance for results that include multiple API responses
Create quick demo of performance for results that only comes from one API response depending on the recent opened article/ visited location/ current languages

Please check the demo video or download the APK to see how it works with multiple API calls vs single API call.

Performance results of different scenarios:

Multiple API calls

Local queries	feed + morelike	feed + morelike + geosearch	feed + morelike + geosearch + random
< 50ms	< 150ms	300 ~ 500ms	> 2500ms

Single API call

Local query	feed / morelike	geosearch	random
< 50ms	< 150ms	< 400ms	> 2000ms

Please note the first morelike API call will take a longer response time, which is ~300 - 500 ms. After it is cached, the response time will be faster.

I can run a live demo in the Android deep dive to see the actual performance.

JTannerWMF added a parent task: T370117: [Epic] Recommend Articles in Search on Android App.Aug 19 2024, 1:56 PM

Thank you @cooltey

cooltey closed this task as Resolved.Aug 27 2024, 5:50 PM

[SPIKE] Investigate how Android app performance holds up when making multiple API calls for SearchClosed, ResolvedPublicActions