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- Newsgroups: comp.sys.pen
- Path: sparky!uunet!stanford.edu!morrow.stanford.edu!acuff@sumex-aim.stanford.edu
- From: acuff@sumex-aim.stanford.edu (Richard Acuff)
- Subject: Re: Slow wake-up with 3125
- Message-ID: <1992Aug31.231535.5596@morrow.stanford.edu>
- Sender: news@morrow.stanford.edu (News Service)
- Organization: Stanford University
- Date: Mon, 31 Aug 1992 23:15:35 GMT
- Lines: 55
-
- Thanks to all who responded to my query about 3125 standby mode. I'll
- summarize some of the points made:
-
- The most important issue is clearly the time to wake up after pushing
- the button. I got the following information (mostly guesses, as far
- as I can tell) as to why it takes so long to wake-up:
-
- - "PP might be checking for configuration changes (eg. new floppy)."
- I would suggest that these checks should be done in the background if
- they take more than .5 seconds (like Iain Cooke).
-
- - "PP might be refreshing it's buffers from disk." Why? All the
- data's still in RAM, right?
-
- - "PP is repainting the screen." If the hardware is keeping the screen
- memory across standby (which seems to be the case), why? If the
- hardware doesn't save screen memory, wake-up time could be saved by
- copying out screen memory as part of stand-by and blting it back upon
- wake-up.
-
- - "My times are 'wrong', perhaps due to configuration issues." I'm
- running a production 3125 with a production NCR 1.0a PenPoint, so I
- don't buy it. Even if the disk is glacial, I don't see why it's being
- accessed upon wake-up. It actually rattles around a bit, so I don't
- think it's just spinning up due to the MIL. We'll see what's
- different between my machine and Lisa Stampfli's, which seems to wake
- up a lot faster.
-
- Since we mostly seem to agree that fast wake-up is important, it would
- be nice to get to the bottom of this so at least we'll know where
- improvements are needed.
-
- The degree of improvement needed is another matter, and depends on how
- useful you expect a machine to be. Personally, I depend on my Sharp
- Wizard enough that I find its 1.5 sec wake-up time annoyingly long--it
- sure doesn't take me that long to get my pen ready. But my "sessions"
- tend to be short and frequent. If you're thinking in terms of uses
- that have long sessions, or of systems that don't need to use stand-by
- mode to conserve power, then it's probably less important to you. I
- argue that current battery life is so short, we need to get all we can
- out of it (I have more ideas for this that I'll post later), and going
- into standby mode in the middle of meetings, etc., is one way to do
- that, but it'll only work if you can get the system back quick.
-
- I agree with the several people who have suggested that time to go to
- sleep is less important than time to wake up, but I don't dismiss it
- altogether. I included it since
- whatever-it's-doing-while-going-to-sleep may be related to
- whatever-it's-doing-to-wake-up. However, if you have the system set
- to timeout, and are looking at the screen when it starts to go to
- sleep, you'll either want to stop it, or want it to be quick so you
- can get back on-line fast.
-
- -- Rich
-
-