Messages in this thread |  | | Date | Mon, 6 Feb 2017 13:53:09 +0100 | From | Pavel Machek <> | Subject | v4.9, 4.4-final: 28 bioset threads on small notebook, 36 threads on cellphone |
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On Sat 2016-02-20 21:04:32, Pavel Machek 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 :-(. > > > > You're directing this concern to the wrong person. > > > > I already told you DM is _not_ contributing any extra "bioset" threads > > (ever since commit dbba42d8a). > > Well, sorry about that. Note that l-k is on the cc list, so hopefully > the right person sees it too. > > Ok, let me check... it seems that > 54efd50bfd873e2dbf784e0b21a8027ba4299a3e is responsible, thus Kent > Overstreet <kent.overstreet@gmail.com> is to blame. > > Um, and you acked the patch, so you are partly responsible.
Still there on v4.9, 36 threads on nokia n900 cellphone.
So.. what needs to be done there? Pavel
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