From: Mike Snitzer <snitzer@redhat.com>
To: Pavel Machek <pavel@ucw.cz>
Cc: kernel list <linux-kernel@vger.kernel.org>, axboe@fb.com, hch@lst.de
Subject: Re: 4.4-rc: 28 bioset threads on small notebook
Date: Fri, 11 Dec 2015 09:08:41 -0500 [thread overview]
Message-ID: <20151211140841.GA22873@redhat.com> (raw)
In-Reply-To: <20151211104937.GA23165@amd>
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)
next prev parent reply other threads:[~2015-12-11 14:08 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-12-11 10:49 4.4-rc: 28 bioset threads on small notebook Pavel Machek
2015-12-11 14:08 ` Mike Snitzer [this message]
2015-12-11 17:14 ` Pavel Machek
2016-02-20 17:40 ` 4.4-final: " Pavel Machek
2016-02-20 18:42 ` Pavel Machek
2016-02-20 19:51 ` Mike Snitzer
2016-02-20 20:04 ` Pavel Machek
2016-02-20 20:38 ` Mike Snitzer
2016-02-20 20:55 ` Pavel Machek
2016-02-21 4:15 ` Kent Overstreet
2016-02-21 6:43 ` Ming Lin-SSI
2016-02-21 9:40 ` Ming Lei
2016-02-22 22:58 ` Kent Overstreet
2016-02-23 2:55 ` Ming Lei
2016-02-23 14:54 ` Mike Snitzer
2016-02-24 2:48 ` Ming Lei
2016-02-24 3:23 ` Kent Overstreet
2016-02-23 20:45 ` Pavel Machek
2017-02-06 12:53 ` v4.9, 4.4-final: 28 bioset threads on small notebook, 36 threads on cellphone Pavel Machek
2017-02-07 1:47 ` Kent Overstreet
2017-02-07 2:49 ` Kent Overstreet
2017-02-07 17:13 ` Mike Snitzer
2017-02-07 20:39 ` Pavel Machek
2017-02-08 3:12 ` Mike Galbraith
2017-02-08 4:58 ` Kent Overstreet
2017-02-08 6:22 ` [PATCH] block: Make rescuer threads per request_queue, not per bioset kbuild test robot
2017-02-08 6:23 ` kbuild test robot
2017-02-08 6:57 ` v4.9, 4.4-final: 28 bioset threads on small notebook, 36 threads on cellphone Mike Galbraith
2017-02-08 16:34 ` Mike Snitzer
2017-02-09 21:25 ` Kent Overstreet
2017-02-14 16:34 ` [dm-devel] " Mikulas Patocka
2017-02-14 17:33 ` Mike Snitzer
2017-02-08 2:47 ` Ming Lei
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