[Click] Re?: Re: Kernel mode with a recent kernel

[Beyers Cronje]

Hi Luigi,

I for one am looking forward to netmap with linux support, so please post
to the list once you have something to share. I've used libe1000
http://libe1000.sourceforge.net/  with Click userspace in the past with
great success. libe1000 uses similar techniques than netmap, unfortunately
this library hasn't been maintained so netmap with linux will be a great
replacement.

Beyers

On Fri, Dec 16, 2011 at 5:32 PM, Luigi Rizzo <rizzo at iet.unipi.it> wrote:

> On Fri, Dec 16, 2011 at 03:57:00PM +0100, Fabrice Schuler wrote:
> > Hi Eddy,
> >
> > Thanks for your answer.
> >
> > In a first time, we could probably only use kernel mode without polling,
> so patchless click could be fine. But on a longer run, I would say that
> yes, we will need polling mode.
> > I will try patchless mode in a first time, and will still try to work to
> use polling in a second time.
>
> If you are interested in polling because of performance, you should
> really consider using click-userspace with netmap (currently on
> FreeBSD, but linux support is really close now)
>
> http://info.iet.unipi.it/~luigi/netmap/
>
> In our tests it seems to beat in-kernel click by a factor of 2,
> for I/O intensive tasks (where polling makes the difference).
>
> http://info.iet.unipi.it/~luigi/netmap/20110729-rizzo-infocom.pdf
>
> cheers
> luigi
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