qemu-devel.nongnu.org archive mirror
 help / color / mirror / Atom feed
From: jiangyiwen <jiangyiwen@huawei.com>
To: Andrew Morton <akpm@linux-foundation.org>,
	Eric Van Hensbergen <ericvh@gmail.com>,
	Ron Minnich <rminnich@sandia.gov>,
	Latchesar Ionkov <lucho@ionkov.net>, Greg Kurz <groug@kaod.org>,
	aneesh.kumar@linux.vnet.ibm.com
Cc: linux-kernel@vger.kernel.org,
	v9fs-developer@lists.sourceforge.net, qemu-devel@nongnu.org
Subject: [Qemu-devel] [RFC] About 9pfs support "O_DIRECT + aio"?
Date: Fri, 30 Mar 2018 16:53:56 +0800	[thread overview]
Message-ID: <5ABDFB24.1080207@huawei.com> (raw)

Hi everyone,

Currently, I found virtio-9p in VirtFS don't support "O_DIRECT + aio"
mode, both v9fs and qemu. So when user use "O_DIRECT + aio" mode and
increase iodepths, they can't get higher IOPS.

I want to know why v9fs don't implement this mode? And I will try to
implement this mode from now on.

Thanks,
Yiwen.

             reply	other threads:[~2018-03-30  8:55 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-03-30  8:53 jiangyiwen [this message]
2018-04-02  2:45 ` [Qemu-devel] [RFC] About 9pfs support "O_DIRECT + aio"? Paolo Bonzini

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=5ABDFB24.1080207@huawei.com \
    --to=jiangyiwen@huawei.com \
    --cc=akpm@linux-foundation.org \
    --cc=aneesh.kumar@linux.vnet.ibm.com \
    --cc=ericvh@gmail.com \
    --cc=groug@kaod.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=lucho@ionkov.net \
    --cc=qemu-devel@nongnu.org \
    --cc=rminnich@sandia.gov \
    --cc=v9fs-developer@lists.sourceforge.net \
    /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;
as well as URLs for NNTP newsgroup(s).