Jimmy Wu wrote: > From what I've read online, I get the general idea that in order to be > able to hibernate/suspend to disk properly, the swap partition has to > be big enough to hold all of the RAM inside it, right? > > Is it possible to hibernate if my swap partition is smaller than my > RAM? I have 2 GB of RAM, and when I installed Debian, I figured I > would hardly ever need that much, so I made swap 1.4 GB.
IIRC the ram image is compressed using lzw compression. Therefore it actually depends upon how well things compress. If you have good compression then it would fit. But if not then it wouldn't. But it is data dependent upon what is in ram at the moment. Using lzw is not really intended to reduce the amount of disk needed but is done as a way to speed up the hibernate process. Writing disk is slow and if that can be reduced then hibernation is faster. But it might work to your advantage anyway. With the big disks available these days it is actually a good idea to have enough swap to avoid the out of memory killer. Search for oom and you will find a number of problems with it. Having enough virtual memory to avoid triggering it is a good thing. Bob
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