Re: mmap() versus read()

Alan Cox (alan@lxorguk.ukuu.org.uk)
Fri, 6 Mar 1998 08:52:56 +0000 (GMT)

> So is this expected? Is there a knob I can twist? Is this just 2.0.32
> buffer problems and would be fixed by 2.0.33?

mmap doesnt do readahead on faults in 2.0.x, that increases the I/O load
when paging mmap data versus read() quite a lot

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