Messages in this thread |  | | | Date | Wed, 26 May 2004 19:58:47 +1000 | | From | Nick Piggin <> | | Subject | Re: why swap at all? |
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Anthony DiSante wrote: > Nick Piggin wrote: > >> The VM doesn't always get it right, and to make matters worse, desktop >> users don't appreciate their long running jobs finishing earlier, but >> *hate* having to wait a few seconds for a window to appear if it hasn't >> been used for 24 hours. > > > Come on, that is quite an exaggeration. It can happen in a span of > minutes -- after rsyncing a dir to a backup dir, for example, which > fills ram rather quickly with cache I'll never use again. Or after > configuring and compiling a package, which does the same thing. >
rsync is something known to break the VM's use-once heuristics. I'm looking at that.
> As you said, the VM doesn't, in fact, always get it right. If 512MB > worked before when it was half swap, 512MB of pure ram will work too, > only faster. I don't see how adding more swap at that point could > increase performance unless you are keeping your ram full of non-cached > pages, and that's never the case for me -- my ram is almost always half > cached pages. >
It can. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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