From: Kent Overstreet <kent.overstreet@gmail.com>
To: Ming Lei <ming.lei@canonical.com>
Cc: Ming Lin-SSI <ming.l@ssi.samsung.com>,
Pavel Machek <pavel@ucw.cz>, Mike Snitzer <snitzer@redhat.com>,
kernel list <linux-kernel@vger.kernel.org>,
"axboe@fb.com" <axboe@fb.com>, "hch@lst.de" <hch@lst.de>,
"neilb@suse.de" <neilb@suse.de>,
"martin.petersen@oracle.com" <martin.petersen@oracle.com>,
"dpark@posteo.net" <dpark@posteo.net>,
"dm-devel@redhat.com" <dm-devel@redhat.com>,
"agk@redhat.com" <agk@redhat.com>,
"jkosina@suse.cz" <jkosina@suse.cz>,
"geoff@infradead.org" <geoff@infradead.org>,
"jim@jtan.com" <jim@jtan.com>,
"pjk1939@linux.vnet.ibm.com" <pjk1939@linux.vnet.ibm.com>,
"minchan@kernel.org" <minchan@kernel.org>,
"ngupta@vflare.org" <ngupta@vflare.org>,
"oleg.drokin@intel.com" <oleg.drokin@intel.com>,
"andreas.dilger@intel.com" <andreas.dilger@intel.com>
Subject: Re: 4.4-final: 28 bioset threads on small notebook
Date: Mon, 22 Feb 2016 13:58:18 -0900 [thread overview]
Message-ID: <20160222225818.GA2675@kmo-pixel> (raw)
In-Reply-To: <CACVXFVPav3D2MzNFR-b4YadFMM6_KcyEYQ7dx4t1r9fMOLDaFw@mail.gmail.com>
On Sun, Feb 21, 2016 at 05:40:59PM +0800, Ming Lei wrote:
> On Sun, Feb 21, 2016 at 2:43 PM, Ming Lin-SSI <ming.l@ssi.samsung.com> wrote:
> >>-----Original Message-----
> >
> > So it's almost already "per request_queue"
>
> Yes, that is because of the following line:
>
> q->bio_split = bioset_create(BIO_POOL_SIZE, 0);
>
> in blk_alloc_queue_node().
>
> Looks like this bio_set doesn't need to be per-request_queue, and
> now it is only used for fast-cloning bio for splitting, and one global
> split bio_set should be enough.
It does have to be per request queue for stacking block devices (which includes
loopback).
next prev parent reply other threads:[~2016-02-22 22:58 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
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 [this message]
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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