Re: pdflush question...

[Andrew Morton]

Daniel Blueman <daniel.blueman@xxxxxxx> wrote:
>
> Is it worth having a kernel config option to vary the number of 'pdflush'
> kernel threads?
> 
> For embedded, systems with no swap and maybe uniproc (?), perhaps one
> pdflush kthread would do?

Probably it should just be set to one by default anyway.  One pdflush is
good at serving lots of spindles.

> Perhaps more generally, the number could be linked to the number of
> processors and/or swap devices or spindles- this would eliminate having to configure
> it, and improve downward and upward scaling, perhaps?

Well the kernel will create up to eight pdflush instances according to the
current load.  That kinda works.

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