Messages in this thread | | | Subject | Re: swap cache | Date | Sat, 19 Dec 1998 16:23:10 -0400 | From | Horst von Brand <> |
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ramak@wipinfo.soft.net (Ramakrishna K) said:
> Also i was thinking about one of the other suggestions that was made > regardin g the compression of a page(s) to a portion of the RAM, and > uncompress it as part of the swap back in. Although the > compression/un-compression has to be measured against the I/O cost.
Not only. Your CPU can be happily computing away at process A while process B pages in some. However, if this "pagein" is really "uncompress a page from RAM", your process A looses the use of the CPU. Might be a win in (mostly) one-process (i.e., one-user) machines, but I wouldn't loose sleep over that: Today's one-user PCs are mostly grotesquely overpowered anyway, and the added complexity isn't worth a minor performance advantage for personal use, IMVHO.
Or is there something else I'm overlooking here? -- Horst von Brand vonbrand@sleipnir.valparaiso.cl Casilla 9G, Viña del Mar, Chile +56 32 672616
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