On Thu, May 17, 2012 at 9:36 PM, Reindl Harald <h.reindl@xxxxxxxxxxxxx> wrote: > > > Am 17.05.2012 14:29, schrieb Joel Rees: >>> you can guess how long it takes dump 16 GB to disk and load >>> it >> >> Guess, .... >> >> Or calculate? > > calculate it I'd like to see your calculations, although I got a clue from your comment about slow disks. > it takes way too long There is a reason for that, other than your harping about how booting fits your needs better than suspending or hibernating. > it may acceptable on machines with real fast RAID10 > but they are booting also much faster and are up in 10-15 seconds > 5 seconds for login and a few seconds for session-restore Well, on my lenovo S100 ideapaddy or whatever this piece of junk is called, I have problems getting a good session restore on reboot. It can wedge xfce4 so that I have to use some workaround to get a shell and use the --replace option. Bugs. Cheap hardware that I could actually buy, instead of dream about, to replace the iBook that died permanently a bit before Christmas. But, as far as which is faster, I have 1G of RAM. I don't run database servers or web servers on it. Go ahead, guess or calculate. I mostly use it on the train for e-mail, text editing, and some translation work that I'm hoping will stretch the paycheck through the last week of the month before payday. Sometimes I use it at work to do things that are not allowed on the computers at work. (Yeah, "tacit" permission that could bite me, so I only use it for emergencies.) An Android phone or tablet would be more appropriate, but I could not afford that, period. Economic realities, here. Boot time is not what I want to do on the train. Suspend takes maybe five seconds to sleep, about the same to wake up. Hibernate takes, actually, not much more, ten seconds max. Cold boot takes somewhere between thirty seconds and more than a minute. >> Do you understand the reason you still set up swap, even though your >> entire workload working set fits into RAM? > > there is no single reason if you have neough RAM In an ideal world, RAM would not consume energy. This is a real world, what energy I have on the train is a small Lithium ion battery. Better than a set of NiCd cells, but still quite limited. And even "just" 1G of RAM consumes quite a bit less suspended than running, and even less hibernated. Enough that I can suspend, shut the lid, get off the train, work all morning, and my work state doesn't disappear in a power-down before lunch. Leaving it running, it might force power-down by the time I walk twenty minutes from the station to work. By the way, in an ideal world (my version), the netbook I'm carrying would not be a lenovo Intel. It wouldn't even be a cold-fire or ARM-based unit. It'd be running a port of Linux or one of the BSDs on a swarm of Forth processors. And nothing but the currently active apps would keep state in RAM, which would save huge time on hibernate and restore, because you wouldn't be trying to dump and restore the entire system RAM. (Maybe there's a hint in there as to why your experience with hibernate seems to have you thinking you don't want to do that.) >>> compared with a full boot between 10 and 30 seconds (30 >>> seconds with a LOT of services like mail, www, mysql...) >> >> The Gimp? > > GIMP starts in around 5 seconds on recent machines Modulo your definition of recent. But you missed the point. LibreOffice, Inkscape, whatever. If I power down the netbook before I get off the train, I have to save whatever I'm working on and quit the apps. (Yeah, actually, I've broken the gimp out and worked a little on graphics on the train once or twice.) That takes time. Then, after I boot back up, I have to open whatever it was I was working on, both starting the apps and loading the documents. With suspend or hibernate, yeah, it's safest to save, but I don't have to quit. And I don't have to start the apps back up after booting back up. By the way, even at home, running the 40W netbook all day long would cost about half of what we spend on lighting for the month. It adds up, and in Japan, it's not as cheap as some other places. I am glad you find you don't need hibernate or suspend. But this thread started with someone talking about kernel devs that want to get rid of suspend and hibernate. If they did remove those from the kernel, I would need something to replace them. -- Joel Rees -- users mailing list users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe or change subscription options: https://admin.fedoraproject.org/mailman/listinfo/users Guidelines: http://fedoraproject.org/wiki/Mailing_list_guidelines Have a question? Ask away: http://ask.fedoraproject.org
