cache grows immensely - causes UI to become sluggish

[guntbert]

Expected behavior

Irrespective of cache utilization the UI should react to finger movements quickly

Actual behavior

Every few days it starts to become sluggish. For instance it takes several seconds for the display to follow my finger (up/down). Investigating this I noticed that the cache had grown to several 100 MB. Clearing the cache and restarting the app makes the UI snappy again.

Steps to reproduce

• Use Twidere every day (I share "many" tweets to pocket), notice how after some time the UI gets sluggish (not related to fetching new tweets)).
• Open the application manager -> Twidere -> memory
• Observe that the cache utilization has grown to ~500MB
• Click on Clear Cache (no result)
• Force close Twidere
• Start Twidere again, Cache utilization is around 0, UI is snappy

I noticed only now that I could clear the cache from within Twidere too - will try it next time.

Extra info

I am not sure but this seems to have started with a recent update - sorry, I don't know which one

Android version: (version code here) 6.0.1

Network type:

• [x] Cellular
• [x] Wi-Fi

App version: (version code here) 3.6.33

Build variant:

• [x] Google (I guess, got it from Google Play)
• [ ] F-Droid

Micro-blogging service:

• [x] Twitter
• [ ] Fanfou
• [ ] GNU Social / StatusNet
• [x] Mastodon

App settings:

• [ ] Custom API

• [ ] Custom consumer key/secrets

• [x] Official keys

• [ ] Using Thumbor

• [ ] Connected through proxy

• [x] Media preview enabled

• max DB Size: 350MB

• max. Cache-Size: 300MB (seems to be ignored)

[guntbert]

In the meantime i moved to another phone, Android 7.1.1 with much more memory and cpu power. Alas, the issue remains. I set the "max cache" value to the lowest possible (100MB) but again that limit seems to be ignored.