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Message-ID: <1486523543.4462.5.camel@gmx.de>
Date: Wed, 08 Feb 2017 04:12:23 +0100
From: Mike Galbraith <efault@....de>
To: Pavel Machek <pavel@....cz>,
Kent Overstreet <kent.overstreet@...il.com>
Cc: Mike Snitzer <snitzer@...hat.com>,
kernel list <linux-kernel@...r.kernel.org>, axboe@...com,
hch@....de, neilb@...e.de, martin.petersen@...cle.com,
dpark@...teo.net, ming.l@....samsung.com, dm-devel@...hat.com,
ming.lei@...onical.com, agk@...hat.com, jkosina@...e.cz,
geoff@...radead.org, jim@...n.com, pjk1939@...ux.vnet.ibm.com,
minchan@...nel.org, ngupta@...are.org, oleg.drokin@...el.com,
andreas.dilger@...el.com
Subject: Re: v4.9, 4.4-final: 28 bioset threads on small notebook, 36
threads on cellphone
On Tue, 2017-02-07 at 21:39 +0100, Pavel Machek wrote:
> On Mon 2017-02-06 17:49:06, Kent Overstreet wrote:
> > On Mon, Feb 06, 2017 at 04:47:24PM -0900, Kent Overstreet wrote:
> > > On Mon, Feb 06, 2017 at 01:53:09PM +0100, Pavel Machek wrote:
> > > > Still there on v4.9, 36 threads on nokia n900 cellphone.
> > > >
> > > > So.. what needs to be done there?
> >
> > > But, I just got an idea for how to handle this that might be halfway sane, maybe
> > > I'll try and come up with a patch...
> >
> > Ok, here's such a patch, only lightly tested:
>
> I guess it would be nice for me to test it... but what it is against?
> I tried after v4.10-rc5 and linux-next, but got rejects in both cases.
It wedged into master easily enough (box still seems to work.. but I'll
be rebooting in a very few seconds just in case:), but threads on my
desktop box only dropped from 73 to 71. Poo.
-Mike
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