mirror of https://lore.kernel.org/lkml/
 help / color / mirror / Atom feed
From: Jens Axboe <axboe@fb.com>
To: Johannes Thumshirn <jthumshirn@suse.de>
Cc: Linux Block Layer Mailinglist <linux-block@vger.kernel.org>,
	"Linux Kernel Mailinglist" <linux-kernel@vger.kernel.org>,
	Jan Kara <jack@suse.cz>, Sagi Grimberg <sagi@grimberg.me>,
	Bart Van Assche <bvanassche@acm.org>,
	Ming Lei <ming.lei@redhat.com>
Subject: Re: [PATCH v2] block: respect virtual boundary mask in bvecs
Date: Wed, 7 Nov 2018 20:04:58 +0000	[thread overview]
Message-ID: <b557400b-4ef9-481f-ac0b-b80545e84a2f@fb.com> (raw)
In-Reply-To: <20181107135814.15727-1-jthumshirn@suse.de>

On 11/7/18 6:58 AM, Johannes Thumshirn wrote:
> With drivers that are settting a virtual boundary constrain, we are
> seeing a lot of bio splitting and smaller I/Os being submitted to the
> driver.
> 
> This happens because the bio gap detection code does not account cases
> where PAGE_SIZE - 1 is bigger than queue_virt_boundary() and thus will
> split the bio unnecessarily.

Thanks, applied.

-- 
Jens Axboe


  parent reply	other threads:[~2018-11-07 20:05 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-11-07 13:58 Johannes Thumshirn
2018-11-07 18:31 ` Sagi Grimberg
2018-11-07 20:04 ` Jens Axboe [this message]
2018-11-07 20:05 ` Jens Axboe

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=b557400b-4ef9-481f-ac0b-b80545e84a2f@fb.com \
    --to=axboe@fb.com \
    --cc=bvanassche@acm.org \
    --cc=jack@suse.cz \
    --cc=jthumshirn@suse.de \
    --cc=linux-block@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=ming.lei@redhat.com \
    --cc=sagi@grimberg.me \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
all inboxes | Powered by JetHome®