From: Christoph Lameter <cl@gentwo.org>
To: Greg KH <greg@kroah.com>
Cc: ksummit-discuss@lists.linuxfoundation.org
Subject: Re: [Ksummit-discuss] [CORE TOPIC] Redesign Memory Management layer and more core subsystem
Date: Fri, 13 Jun 2014 12:59:32 -0500 (CDT) [thread overview]
Message-ID: <alpine.DEB.2.10.1406131258230.7778@gentwo.org> (raw)
In-Reply-To: <20140613173145.GB19513@kroah.com>
On Fri, 13 Jun 2014, Greg KH wrote:
> On Fri, Jun 13, 2014 at 11:57:04AM -0500, Christoph Lameter wrote:
> > On Thu, 12 Jun 2014, John W. Linville wrote:
> >
> > > AF_PACKET provides some level of hardware abstraction without a lot of
> > > overhead for networking apps that are prepared to deal with raw frames.
> > > Is this the kind of networking API you would propose?
> >
> > The kernel is still in the data path and will cause limitations in terms
> > of bandwidth and latency.
>
> Of course it will, nothing is "free". If this is a problem, then run
> one of the many different networking stacks that are in userspace that
> are tailored to a specific use-case. The kernel has to provide a
> "general" use case stack, that is its job.
But again I want both. A general stack that allows at least the data path
to go direct to the device. The metadata and connection management etc
should be firmly in the hand of the kernel.
next prev parent reply other threads:[~2014-06-13 18:07 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-06-11 19:03 Christoph Lameter
2014-06-11 19:26 ` Daniel Phillips
2014-06-11 19:45 ` Greg KH
2014-06-12 13:35 ` John W. Linville
2014-06-13 16:57 ` Christoph Lameter
2014-06-13 17:31 ` Greg KH
2014-06-13 17:59 ` Christoph Lameter [this message]
2014-06-13 19:18 ` Stephen Hemminger
2014-06-13 22:30 ` Christoph Lameter
2014-06-13 16:56 ` Christoph Lameter
2014-06-13 17:30 ` Greg KH
2014-06-13 17:55 ` James Bottomley
2014-06-13 18:41 ` Christoph Lameter
2014-06-16 11:39 ` Thomas Petazzoni
2014-06-16 14:05 ` Christoph Lameter
2014-06-16 14:09 ` Thomas Petazzoni
2014-06-16 14:28 ` Christoph Lameter
2014-06-13 18:01 ` Christoph Lameter
2014-06-13 18:25 ` Greg KH
2014-06-13 18:54 ` Christoph Lameter
2014-06-11 20:08 ` josh
2014-06-11 20:15 ` Andy Lutomirski
2014-06-11 20:52 ` Dave Hansen
2014-06-12 6:59 ` Phillip Lougher
2014-06-13 17:02 ` Christoph Lameter
2014-06-13 21:36 ` Benjamin Herrenschmidt
2014-06-13 22:23 ` Rik van Riel
2014-06-13 23:04 ` Christoph Lameter
2014-06-14 1:19 ` Phillip Lougher
2014-06-16 14:04 ` Christoph Lameter
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=alpine.DEB.2.10.1406131258230.7778@gentwo.org \
--to=cl@gentwo.org \
--cc=greg@kroah.com \
--cc=ksummit-discuss@lists.linuxfoundation.org \
/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