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TorgoX (1933)

TorgoX
  sburkeNO@SPAMcpan.org
http://search.cpan.org/~sburke/

"Il est beau comme la retractilité des serres des oiseaux rapaces [...] et surtout, comme la rencontre fortuite sur une table de dissection d'une machine à coudre et d'un parapluie !" -- Lautréamont

Journal of TorgoX (1933)

Tuesday April 30, 2002
07:35 PM

Boot time and shutdown time.

[ #4561 ]

I very freely admit that I have significant gaps in my knowledge of all things computer-related. For example, I have only rudimentary understanding of TCP/IP.

But one thing has been bothering me lately, and while I realize that this question is probably the computational equivalent of "why is the sky blue?" in meteorology, I'll ask it: Why does it take so long for an OS to boot, and also a long time for it to shut down? Or, if the general case is too hard to answer, then I'll ask specifically: Can anyone explain to me why it takes so long for MSWindows to boot? I mean, I realize that there's lots of device drivers to load, but should it really that that much longer for MSWindows to load than it takes for any other large program, like MSWord?

And especially for shutdown: if I have no applications open, why does it take more then 2 or 3 seconds to shut the machine down?

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  • Do you remember Raiders of the Lost Ark, where the bad guys finally find the Ark of the Covenent and open it, releasing all sorts of strange spirits? It takes a while. Of course, shutting down means stuffing them all back in the box.

    I would have used the "genie back in the bottle" image, but then I wouldn't be able to make a Stonecutter's Guild [snpp.com] reference.

  • From a position of no knowledge - I feel that the slowness comes when things are being done to the registry. However it is difficult to see why the shutdown of a machine that has no applications running should take so long as surely everything has been flushed to the disk.

    If you are logged in to a domain controller then as you log out I think it writes your local profile back to the domain controller and this seems to slow things down also.
  • I find that startup is largely based on the number of services that you run at startup. When you shut down, the OS is going to shut down all of those services as well. Mostly I'm talking about stuff running in the background, not active applications.

    For the record (lino-nuts of the world), my Linux partition has about the same boot time as my Windows 98 partition. There are some free startup managers for Windows that can help you remove some junk (that doesn't appear in the startup folder) to help your

    • The quickest OS for boot time that I've seen is BeOS, at @15 seconds from boot sector to music. Shutdown is generally about 2 seconds, or you can just hit the power button (journaled OS ya know).

      Yep. When I was running BeOS on my desktop, the longest part of the boot sequence was waiting for the hardware initialization (POST, BIOS displays, finding the graphics card and turning it on, etc.). From hitting the boot sector to a usable desktop took 10-12 seconds on my dual-Celeron 400 config. That whole