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SubjectRe: [PATCH] Radix-tree pagecache for 2.5
On Fri, 1 Feb 2002, Jeff Garzik wrote:

> > the biggest reason for this is that we *suck* at readahead for mmap....
>
> Is there not also fault overhead and similar issues related to mmap(2)
> in general, that are not present with read(2)/write(2)?

If a fault is more expensive than a system call, we're doing
something wrong in the page fault path ;)

Rik
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