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SubjectRe: 4.4-final: 28 bioset threads on small notebook
On Sat 2016-02-20 18:40:35, Pavel Machek wrote:
>
> On Fri 2015-12-11 09:08:41, Mike Snitzer wrote:
> > On Fri, Dec 11 2015 at 5:49am -0500,
> > Pavel Machek <pavel@ucw.cz> wrote:
> >
> > > Hi!
> > >
> > > I know it is normal to spawn 8 threads for every single function,
> > ...
> > > but 28 threads?
> > >
> > > root 974 0.0 0.0 0 0 ? S< Dec08 0:00 [bioset]
> > ...
> >
> > How many physical block devices do you have?
> >
> > DM is doing its part to not contribute to this:
> > dbba42d8a ("dm: eliminate unused "bioset" process for each bio-based DM device")
> >
> > (but yeah, all these extra 'bioset' threads aren't ideal)
>
> Still there in 4.4-final.

...and still there in 4.5-rc4 :-(.
Pavel
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html

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