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octalfudge@lemmy.world to Apple@lemmy.worldEnglish ·
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2 years ago

Possible explanation for jank in Android as opposed to iOS (20 millisecond core ramp on ARM/Android vs 50 microseconds on Apple/iOS)

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Possible explanation for jank in Android as opposed to iOS (20 millisecond core ramp on ARM/Android vs 50 microseconds on Apple/iOS)

social.treehouse.systems

octalfudge@lemmy.world to Apple@lemmy.worldEnglish ·
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2 years ago
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Hector Martin (@marcan@treehouse.systems)
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Attached: 1 image Wait, 20 *milliseconds*? Either their kernel scheduler config is completely out of whack, or ARM/Qualcomm really screwed this one up. Apple cores can boost to max in around 50 *micro* seconds. 20 milliseconds is just broken. That's more than one frame, and that's how you get janky UI response and dropped frames. I hope this was a config issue and these cores/designs really don't take 20ms to increase clocks (I could see that with a really bad regulator/power delivery system...) From: https://chipsandcheese.com/2023/08/11/arms-cortex-a710-winning-by-default/

More useful context:

https://social.treehouse.systems/@chadmed/110874563649736382

  • steeev@midwest.social
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    2 years ago

    TIL that a microsecond exists and 1 millisecond is the same as 1,000 microseconds.

    • FleetingTit@feddit.de
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      2 years ago

      Wt… oh, congratulations on being one of todays lucky 10k

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