Re: mmap() is slower than read() on SCSI/IDE on 2.0 and 2.1

Chris Wedgwood (cw@ix.net.nz)
Thu, 17 Dec 1998 11:07:01 +1300


On Wed, Dec 16, 1998 at 12:28:28PM +0000, Stephen C. Tweedie wrote:

> The point is that there are many very common access patterns which
> the O/S can, and should, recognise and optimise without the user
> needing to tell us.

very common != all.

I'm interested in trying your scheme out -- if indeed it does work
and we have no legitimate reason to use madvise, then that is of
course very desirable (why add syscalls when we don't need them?)

-cw

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