On Nov 14, 2005, at 6:54 AM, Daniel Cohen wrote:
There is nothing actually called "hibernate" on the Mac, I think
"sleep" on the Mac is somewhere between "sleep" and "hibernate" on
Windows, but I don't know Windows. Certainly Mac wake from sleep is
fast. I just tried putting my Mac to sleep in the middle of writing
this email, and it took less than ten seconds to wake up, with a
whole lot of other programs open. That's fast enough for Wake on
LAN to be useful, even if it may be, as you imply, not totally
necessary.
The new powerbooks also include something called "deep sleep" where
after you put your laptop to sleep it also writes the contents of
memory to disk. This is similar to hibernate on windows, but smarter.
If you wake it up before the battery runs down (takes a few days) or
is removed (say you are swapping batteries), then it wakes up very
quickly. (less than 5 seconds here!)
If the battery runs down or is removed, then it loads up the the
memory from disk, which may take 20 or 30 seconds, depending on how
much memory you have and how fast your computer is.
The beauty of this is that you don't have to think about it. Close
the lid, it goes to sleep. Do whatever you want. Open the lid, it
wakes up.
It just works.
I do know that on the Mac laptops WOL only works if the computer is
plugged in and I strongly suspect that it doesn't matter if it's in a
sleep or a deep sleep.
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