Messages in this thread | | | From | John Bradford <> | Subject | Re: [RFC] first try for swap prefetch | Date | Fri, 11 Apr 2003 13:21:44 +0100 (BST) |
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> > > as mentioned a few days ago I was going to try to implement a swap > > > prefetch to better utilize the free memory. Now here is my first try. > > > > That's surprisingly cute. Does it actually do anything noticeable? > > Well, it fills free pagecache memory with swapped pages... ;-)
Actually, it could potentially do something very useful - if you are using a laptop, or other machine where disks are spun down to save power, you might be swapping in data while the disk still happens to be spinning, rather than letting it spin down, then having to spin it up again - in that instance you are definitely gaining something, (more battery life).
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