Re: Using swap though there's plenty of mem free

[Johnny Billquist <bqt%softjar.se@localhost>]

Johnny Billquist wrote:
> Jonathan Schleifer wrote:
> > Johnny Billquist <bqt%softjar.se@localhost> wrote:
> >
> > > Preemptive page-in? Wow, that would be tricky to do in a good way...
> >
> > No, I mean: If there's enough free memory to load the complete swap
> > into the memory, do so, but keep a copy in swap in case another app
> > needs the memory so it can be swapped out again very fast.
>
> Yeah, if you have enough free memory to do a page-in of everything in 
> swap, then yes, it could be done in a way that could possibly be 
> meaningful.

Also, you need to have free cpu and I/O capacity, otherwise it might 
still hurt more that it gains you. I think it's still too difficult to 
really analyse and utilize this kind of situation to make it practical.

        Johnny