Andreas Bombe wrote:
>
> On Tue, May 16, 2000 at 11:57:25PM +0200, iafilius@xs4all.nl wrote:
> > Just noticed while copying a (large/tested with 60MB) file it takes about
> > twice the file's size in cache (which takes it from free memory).
> >
> > This must be because kernel doesn't know about the same files,
> > and caches them separate.
>
> They are separate files after all, so what should it do? Do a memcmp
> over all of its caches to find whether there are identical cache
> pages?
It seems like "cp file1 file2" is very analagous to sendfile(2)
actually... :)
Jeff
-- Jeff Garzik | Liberty is always dangerous, but Building 1024 | it is the safest thing we have. MandrakeSoft, Inc. | -- Harry Emerson Fosdick- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.rutgers.edu Please read the FAQ at http://www.tux.org/lkml/
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