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SubjectRe: PATCH: rewritten bdflush
On Wed, 12 May 1999, Marc Lehmann wrote:
> On Tue, May 11, 1999 at 12:13:30PM -0400, Zack Weinberg wrote:
> >
> > There is one notable side effect: you don't have to run the user space
> > update anymore, bdflush wakes up every so often all by itself. I
>
> How about notebook users who have configured update to stop
> writing out buffers and spin down disks after some idle time?

I think we might want to change the kernel's behaviour
to include the following things:
- don't flush if:
- there are less than X dirty buffers &&
- we haven't recently read from the disk
- flush if:
- there are more than X dirty buffers ||
- we issued a read from the disk more than
Y and less than Z seconds ago ||
- the dirty buffer is FAR too old
(say, an hour or so)

cheers,

Rik -- Open Source: you deserve to be in control of your data.
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