[dpdk-dev] ieee1588fwd.c implementation

Stefan Binna stefan.binna at salzburgresearch.at
Tue Aug 18 09:38:58 CEST 2015


alright, I'll look it up.

Thanks for your help.

Kind regards,

Am 17.08.2015 um 16:21 schrieb Mcnamara, John:
>> -----Original Message-----
>> From: Stefan Binna [mailto:stefan.binna at salzburgresearch.at]
>> Sent: Monday, August 17, 2015 1:48 AM
>> To: Mcnamara, John; dev at dpdk.org
>> Subject: Re: [dpdk-dev] ieee1588fwd.c implementation
>> Hi,
>> I'm using the Intel NIC 82547L.
>> Furthermore I'm using DPDK-2.0.0, the last stable download from the
>> official homepage.
>> Is there any method to "measure" the time the NIC takes to process the
>> packet from the input port (e.g. port 0) to the output port (port 1)?
>> Should be around 8 to 40 microseconds depending on the packet size?
> Hi Stefan,
> The RX/TX callbacks sample application looks closer to what you are looking for:
> "The RX/TX Callbacks sample application is a packet forwarding application
> that demonstrates the use of user defined callbacks on received and transmitted
> packets. The application performs a simple latency check, using callbacks,
> to determine the time packets spend within the application".
>      http://dpdk.org/doc/guides/sample_app_ug/rxtx_callbacks.html
>      http://dpdk.org/browse/dpdk/tree/examples/rxtx_callbacks/main.c
> John.

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