Disadvantages of a large swap partition

John Wheal asked:

I’m aware that there is a huge performance decrease when using swap memory, but if you have wasted hard drive space is there any disadvantages to having (hopefully not using) a large swap partition?

My answer:


Memory may be cheap, but it’s still not free.

On my workstation I routinely go into swap just from normal system usage. (Of course, it is a _work_station…) With 16GB of RAM and 16GB of swap, I usually am about 2-3GB swapped out. Never seen it go higher than that, though I’ve got plenty of headroom there.

I don’t even miss the disk space. It’s even cheaper than memory.


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