An app for M1 Macs that plays the sound of a fan as CPU usage goes up

Re:An app for M1 Macs that plays the sound of a fan as CPU u... by codedokode on Sunday July 18, 2021 @07:35PM (#27877704)

I don't think Apple has any special tricks for input loop.

Some Android phones really have input lag, but it is not caused by CPU load. For example, on my phone, there is approximately 100-150 ms lag between tapping the screen and registering the touch. The lag is not caused by CPU load, but by slow touch sensor.

I don't think Apple has any smart code optimization tricks. Either they have a faster touch sensor or just some people believe that if something is made by Apple then it is of a better quality.

Here is a comparison of input lag in games in iOS and Android [1] and it shows similar results: 80 ms between a tap and reaction on screen.

[1] https://blog.gamebench.net/touch-latency-benchmarks-iphone-x...

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Re:An app for M1 Macs that plays the sound of a fan as CPU u... by ajconway on Sunday July 18, 2021 @07:45PM (#27877770)

They do! See https://devstreaming-cdn.apple.com/videos/wwdc/2015/233l9q8h... and the corresponding WWDC session on them minimizing the input-to-display time.

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Re:An app for M1 Macs that plays the sound of a fan as CPU u... by ericye16 on Sunday July 18, 2021 @11:11PM (#27878890)

This is off-topic, but I love that the title of the slides is "233_Advanced Touch Input on_iOS_04_Final_Final_VERY_Final_D_DF.key".

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Re:An app for M1 Macs that plays the sound of a fan as CPU u... by jppittma on Monday July 19, 2021 @10:07AM (#27882793)

I wonder why somebody working at apple wouldn't just use git for that?

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