Macro-economic consequences of Moore's law?

By: Ricardo B (ricardo.b.delete@this.xxxxx.xx), April 20, 2017 9:15 am
Room: Moderated Discussions
Ireland (boh.delete@this.outlook.ie) on April 19, 2017 8:41 pm wrote:
> RichardC (tich.delete@this.pobox.com) on April 19, 2017 12:08 pm wrote:
> >
> > But I think it's a mistake to focus only on Intel, who have missed out badly on the phone/tablet
> > boom, and instead have found themselves chasing improvements in server TCO (by putting more and
> > more cores per cpu, with less and less power per core) and laptop battery life.
>
> Let's restate my argument in relation to this, a different way.
>
> Let's look at what tablets and phones did do 'right', that laptops haven't done
> right, and haven't done right for far too long. Tablets and phones, did three
> things, that is three crucial things, from the engineering perspective.
>
> They (tablets and phones), introduced proper low-power cpu's, not just desktop equivalents.
> They (tablets and phones), introduced small capacity, but high performance drive storage.
> They (tablets and phones), introduced a beefed up battery supply capability, relative to the
> two above - and that equaled real portability, as in eight to twelve hours per one charge.
>
> That is roughly the balance of things, in tablets and phones, and that is not the balance of things in laptops.
> What did consumers choose in preference? The chose tablets and phones, much more in preference to laptops, because
> the 'form factor' difference of the tablet/phone, . . . allowed the engineers who made those things, change it.
> And laptop makers were busy, busy, busy plugging along and doing it, 'the way it always was done'.
>
> Run this experiment, if you don't believe me.
>
> Take a laptop system with a real low-power cpu, like the Atom. It will leave you enough
> headroom, to introduce a quite high performance, more power hungry drive into it. Watch
> what happens to battery life though. It reduces down from one to two hours life, down to
> minutes. You see? The batteries in laptops, therefore, must be much too small relative to
> the other parts. And the designers of phones and tablets noticed that - and fixed it.
>
> Most of what's in a phone or tablet, is 'battery'. I.e. Most of what's in it, is 'power supply'. Most of
> what goes into laptop systems should be power supply. There ought to be a small space left over in the
> corner for things like real low power cpu's and storage. And you don't need much of either of those, to
> be fair. Designers of phones and tablets, just figured that out, and implemented it in their design.
>
> You've got no real storage capacity in the tablet or phone, on the boot drive, in a fast, high
> performance solid state 30gb, or 60gb part. And that's how it should be. No laptop, should have
> a one or two terabyte, slow mechanical drive (which most purchasers of laptops, never even use
> except a tenth of that capacity anyhow, that sata delivers). And the firmware on that circuit board,
> underneath that slow sata laptop drive, is purposefully castrated, so as to 'pretend' that the
> battery life of the device is two hours - when effectively, it's only 'minutes' length.
>
> Like 'portability' isn't just a function of 'form factor' (as in phones or tablets are smaller than
> laptops, and are therefore more 'portable'). Portability, in it's true sense is actually more of a function
> of battery life. And laptops make batteries far too whimpy, relative to 'drives' and 'cpu's'.


I've run the experiment.
My dirt cheap laptop lost none of it's (limited) autonomy when I swapped the HDD for an SSD.

My cheap laptop has a 33.4 Wh battery.
My SSD has a peak power consumption of 3.5 watt, similar to the slow HDD that it replaced.
It would need 9.5 hour to drain the battery, going at full tilt.

In practice, the system drawn 15-20 watt and I'm lucky to get 2 hours out of it.

Storage's power consumption is a second order issue on a mobile device's power bugdget.
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