Le 08/11/2015 19:51, Simon Hobson a écrit :
> Didier Kryn <kryn@???> wrote:
>
>> Why the hell did they invent suspend-to-disk?
> I take it you don't like the idea ?
>
> My only laptop is OS X, and I tend to leave so much open (text files of temporary notes, a gazzillion web pages/tabs, mail (home), mail (work), and a few others. To boot takes several minutes*, sleep takes a second or two.
> But for a while I was using a laptop without a working battery, and then suspend to disk was a godsend. Takes a little longer writing 8G to disk and reading it in again when waking, but really really made sense for me - and as implemented in OS X works very well.
> While I now have a working (more or less) battery, it will still suspend to disk if the battery is almost down when I sleep it.
>
> As an aside, a lot of years ago with a different hat one, we had a customer who moved around a lot - but didn't actually need "portable" use. Laptops weren't common back then, and Apple's "portable" cost £4.5k, had a crap display, and was generally descibed by others as "luggable" (I've seen smaller batteries on a motorbike !) In the end, he settled on a Mac LC (original version, https://en.wikipedia.org/wiki/Macintosh_LC) with an extra keyboard, mouse, and monitor. The computer itself was small enough (just) to go in a briefcase.
> Suspend to disk would have been just brilliant for that application.
>
> So personally, I think it's a wonderful idea. If there are problems in some implementations, I'd say you should direct your displeasure to the implementation rather than the concept.
>
> * As discussed before, the "system" boot time is fairly irrelevant - the system isn't usable for my workload for a couple of minutes after the services have loaded. 10 or 20 seconds either way would be irrelevant.
>
No. I don't dislike the idea. I admit it is brillant. I also use
suspend mode, and my laptop is configured to do it rather quickly when
running on battery. I erroneously assumed the fast restart was the only
motivation.
However you and me enjoy the fast wake up - you mentionned it :-)
Therefore there is no reason to not enjoy the fast boot (and fast
shutdown) as well. Maybe you never shutdown, but some, like me, prefer
to put their laptop back in a well-know state from time to time.
This leads to the conclusion: boot time doesn't matter if you never
shut down, but it matters if you do it often. We might have reached this
conclusion earlier :-) but there also has been a discussion on the
reality of the gain in boot time.
Didier
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Re: [DNG] Detailed technical treati…
