The fact that your response to someone like swetland is "Not to mention that their comment is simply dated and wrong now regardless." is hilariously arrogant and amazing.
I'll just continue to find it funny that you want to cite chip manufacturers (who uh, might be slightly self-serving in selling their architectures, and produce zero actual phones except for samsung. Except, of course, that the division of samsung that produces the phones is separate and does not really talk to the chip making division. I'm sure you know this), when i am talking about the actual qualification and testing of real world phones, and not "whatever random crap they made up to put in their marketing material".
You can try to gussy that up as "actual field observations of SOC vendors" or whatever, but that just shows further ignorance in how SOC vendors actually operate.
Again, I urge you: Buy an evaluation board or two. They are cheap. Put an OS on them. Try out what you claim is true. Measure the power draw. I think you will be surprised.
Have a good one!
1) I can easily envision a scenario where he really is an expert but is not necessarily allowed to come out and say "I am a senior embedded systems engineer working for XYZ Mobile Devices" and has years of experience and is sitting there laughing at you. I should know because there are a couple of completely unrelated subjects that get widely discussed on the internet where I am an expert but can't just flat out state all my qualifications. I try to contribute sometimes in discussions about these subjects but often people say I have no idea what I'm talking about.
2) You seem to believe that he cannot possibly be an expert. He disagrees, and offers no absolute proof (and really, does he have to do that? Why can't we just be nice to each other).
3) I am embarrassed for you because you have seemed to be very mean and dismissive. Even if you're right, using phrases like "You are a Hacker News "Expert" and a bore" and "Save the world from your ignorance" just makes me feel that you're being rude.
This is 100% false. I do bringup on these platforms. I know a lot about them.
"I'm going to favor the industry's interpretation of this a bit more than your anecdotal, occasional compiler-writer knowledge. "
Dude, i literally do the toolchain bringup on these platforms you claim i have no knowledge of. This is not "anecdotal occasional compiler-writer knowledge". This is "I get paid to make the stuff you keep talking about work fast and get good battery life out of it".
If what you say was true, then one would expect that when they were brought up, they would have worse performance and better battery life. Instead, the exact opposite is true in most cases. They have slightly better performance, and much worse battery life. Try it sometime.
Battery life is gotten back mainly through .. wait for it ... compiler optimization ... to speed up the software so things can sleep faster.
Not to "move things onto the little cores to save power", as you seem to think.
Since you want to attack my experience, remind me again, what background do you have in this again? (FWIW - I would stay away from this argument line as it is unlikely to serve you well)
As swetland (who was android's main kernel guy for a long time) pointed out to you, you literally have no idea what you are talking about when it comes to CPU sleeping and what the main power policies are.
BTW, much earlier i asked if you had anything other than self-serving industry press releases to back up your claims. I'm guessing the answer is "no", given what you've written.
Anyway, i'm going to stop responding now, because i'm just some anecdotal compiler writer, and clearly i can't compete with your vast knowledge store and experience on this one.