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Originalthema:

S25 Ultra - High CPU Usage - Input Lag

(Thema erstellt am: 02-04-2025 08:26 PM)
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RekkitRalph
Explorer
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I'm experiencing intermittent input lag so short presses are sometimes registered as long presses (super annoying when typing). It also means there's a tiny delay when opening or closing apps. Restarting the phone fixes this for but then the issue returns. Have tried turning all Good Lock modules off but it makes no difference. Other than this the phone is perfect. 

Is anyone else having this issue? I'm nervous it might be a hardware issue. 
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RekkitRalph
Explorer
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Did some digging on this, identified the cause as a thread called HeapTaskDaemon (taking 89% CPU in this image) which I understand is responsible for memory allocation. Interestingly it always seems to appear with the WiFiConnectivity thread too. Airplane mode doesn't fix it.

Still haven't found a fix but kind of knowing the cause is one step closer I guess. Will try and analyse that thread more next time the issue returns.IMG-20250402-WA0001_1000032578_1743606701.jpg
RekkitRalph
Explorer
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**Update for anyone who might stumble on this:**

After a lot of trial and error, I haven’t had the issue return in over a week. What seemed to fix it was:

* Turning off **Wi-Fi Control** special access for these system apps (*Settings > Apps > Show System Apps*):
* `wifiailla`
* `wifiailwh`
* `wifiaiservice`
* Changing the **Wi-Fi scan interval** in *Wi-Fi Developer Options > Change Scan Interval* from **Default** to **Rarely**
* Restarting the **Wi-Fi subsystem** in the same developer options

I’d already disabled all the Intelligent Wi-Fi options before, but these extra changes seem to have done the job. No CPU spikes or lag since.

Hope this helps someone else down the line.

Here's my Reddit post with mote detail and logs if anyone is interested. https://www.reddit.com/r/samsunggalaxy/s/ZFwxbP7Gp8
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Christie8
Pioneer
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Hello, I recently had my s25u get laggy with texting, clicking on things etc. I cant find the above/

* Turning off **Wi-Fi Control** special access for these system apps (*Settings > Apps > Show System Apps*):
* `wifiailla`
* `wifiailwh`
* `wifiaiservice`
* Changing the **Wi-Fi scan interval** in *Wi-Fi Developer Options > Change Scan Interval* from **Default** to **Rarely**
* Restarting the **Wi-Fi subsystem** in the same developer options

 

any help would be great?

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