Re: mmap()/VM problem in 2.4.0

[Marcelo Tosatti]

On Thu, 18 Jan 2001, Rik van Riel wrote:

> On Fri, 12 Jan 2001, Vlad Bolkhovitine wrote:
> 
> > You can see, mmap() read performance dropped significantly as
> > well as read() one raised. Plus, "interactivity" of 2.4.0 system
> > was much worse during mmap'ed test, than using read()
> > (everything was quite smooth here). 2.4.0-test7 was badly
> > interactive in both cases.
> 
> Could have to do with page_launder() ... I'm working on
> streaming mmap() performance here and have been working
> on this for a week now (amongst other things).

Also remember that drop_behind() is not working for mmap(), yet...