Date: Fri, 3 Jun 2011 09:34:34 +0200 From: Vlad Galu <dudu@dudu.ro> To: Luigi Rizzo <rizzo@iet.unipi.it> Cc: current@freebsd.org, net@freebsd.org Subject: Re: Introducing netmap: line-rate packet send/receive at 10Gbit/s Message-ID: <BANLkTi=fu8F7QhXRxs%2Bc0-Mdf4NeafSY-w@mail.gmail.com> In-Reply-To: <20110602223140.GA31285@onelab2.iet.unipi.it> References: <20110602223140.GA31285@onelab2.iet.unipi.it>
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On Fri, Jun 3, 2011 at 12:31 AM, Luigi Rizzo <rizzo@iet.unipi.it> wrote: > Hi, > we have recently worked on a project, called netmap, which lets > FreeBSD send/receive packets at line rate even at 10 Gbit/s with > very low CPU overhead: one core at 1.33 GHz does 14.88 Mpps with a > modified ixgbe driver, which gives plenty of CPU cycles to handle > multiple interface and/or do useful work (packet forwarding, analysis, > etc.) > > You can find full documentation and source code and even a picobsd image at > > http://info.iet.unipi.it/~luigi/netmap/ > > The system uses memory mapped packet buffers to reduce the cost of > data movements, but this would not be enough to make it useful or > novel. Netmap uses many other small but important tricks to make > the system fast, safe and easy to use, and support transmission, > reception, and communication with the host stack. > > You can see full details in documentation at the above link. > > Feedback welcome. > > cheers > luigi > -----------------------------------------+------------------------------- > Prof. Luigi RIZZO, rizzo@iet.unipi.it . Dip. di Ing. dell'Informazione > http://www.iet.unipi.it/~luigi/ . Universita` di Pisa > TEL +39-050-2211611 . via Diotisalvi 2 > Mobile +39-338-6809875 . 56122 PISA (Italy) > -----------------------------------------+------------------------------- > This is great news, Luigi! Thank you for your work! -- Good, fast & cheap. Pick any two.
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