nospam wrote on 1/10/2018 10:44 AM:
In article , rickman
wrote:

False. Android phones absolutely do throttle the CPU secretly with no
warning:

https://stackoverflow.com/q/11883404/6540130

Well yes of course the CPU gets throttled to prevent overheating.

Why would the CPU overheat?

because the user is doing something cpu intensive for an extended
period of time causing the cpu to get hot.

You completely ignore the issue. CPUs overheating mean the CPU cooling is
not designed appropriately. Just like the cooling in a car. If I drive and
my car overheats the problem is the car wasn't designed correctly or is
broken. Cooling systems should be designed to cool the thing they are
cooling.

i'm not ignoring anything.

if you drive your car in extreme situations, it likely will overheat,
possibly with other failures too.

you can see these people on the side of the road on hot summer days.

Yes, because there is something *wrong* with their car, not because it is
expected for cars to stop working when it is warm. *Your* car didn't fail
did it? Did everyone's cars fail? No, only the cars that had a defect.

If your car is under warranty and it overheats on a very hot summer day, do
they say, "Hey, it was a hot day"? No, they fix it!


Most computers are designed with adequate
cooling capacity.

they are, for normal everyday use. push it hard, such as playing a
graphics intensive game, and it will get warm, possibly very warm.

What? You aren't supposed to play games on a computer? LOL

nonsense. games are extremely popular on mobile devices.

So it is reasonable to expect a mobile device to run games without
overheating? If not, then it sounds like mobile devices are real crap!


there are no fans in a mobile phone. there is no room for a large
heatsink on the processor.

They also don't run the same sort of programs as PCs.

yes they do. the obvious ones are email and web browsing, but many
people also edit photos and videos on their phones.

None of which will cause a mobile device to overheat. Why are you just
disputing everything I say without paying any attention to the context?


But they are
computers and need to be designed to keep cool when being used and not to
burst into flames because someone played a game too long.

and they are.

if it gets too warm, it has to throttle.

Or it can be designed with adequate passive cooling.

it is, but everything has limits.

Yes, and those limits should be beyond anything a user can do. It's very
easy. Every CPU has a figure for the maximum power dissipation. The phone
needs to be able to dissipate that much power or the CPU will overheat.
Isn't that easy?


Overheating in a phone would be very bad. High
temperatures in a phone heat the Lithium battery which can in extreme cases
catch fire.

yep, which is why it has to be throttled.

Or better, cooled.

right, because a phone with a large heatsink sticking out the back and
a fan that's always on will sell.

not.

You clearly know nothing about designing mobile electronics. I'm done with
this discussion with you.

--

Rick C

Viewed the eclipse at Wintercrest Farms,
on the centerline of totality since 1998