Linux-kernel mailing list archive 2000-26,: Re: [PATCH] 2.2.17pre7 VM enhancement Re: I/O performance on

# Re: [PATCH] 2.2.17pre7 VM enhancement Re: I/O performance on

Marcelo Tosatti (marcelo@conectiva.com.br)
Sun, 25 Jun 2000 20:00:10 -0300 (BRST)

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On Mon, 26 Jun 2000, Andrea Arcangeli wrote:

> On Sun, 25 Jun 2000, Marcelo Tosatti wrote:
>
> >With the attached patch, try_to_free_buffers() wakes up kflushd if the
> >percentage of dirty memory is high, independant of sync_page_buffers
>
> It's wrong to do that there. kflushd is just wakenup by the guy that
> generated the dirty data.
Why that is wrong?

If we have more than a certain percentage of the memory dirty, we should
wakeup kflushd. IMO it doesnt matter _who_ is waking up kflushd.

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