[dpdk-dev] random pkt generator PMD

Thomas Monjalon thomas.monjalon at 6wind.com
Wed Jun 15 13:40:50 CEST 2016

2016-06-15 17:10, Yerden Zhumabekov:
> On 15.06.2016 16:43, Dumitrescu, Cristian wrote:
> > From: dev [mailto:dev-bounces at dpdk.org] On Behalf Of Yerden Zhumabekov
> >> I've been thinking about the idea of having PMD which would generate
> >> mbufs on the fly in some randomized fashion. This would serve goals
> >> like, for example:
> >>
> >> 1) running tests for applications with network processing capabilities
> >> without additional software packet generators;
> >> 2) making performance measurements with no hw inteference;
> >> 3) ability to run without root privileges, --no-pci, --no-huge, for CI
> >> build, so on.
> >>
> >> Maybe there's no such need, and these goals may be achieved by other
> >> means and this idea is flawed? Any thoughts?
> > How about a Perl/Python script to generate a PCAP file with random packets and then feed the PCAP file to the PCAP PMD?
> >
> > Random can mean different requirements for different users/application, I think it is difficult to fit this  under a simple generic API. Customizing the script for different requirements if a far better option in my opinion.
> AFAIK, the thing about pcap pmd is that one needs to rewind pcap file 
> once pcap pmd reaches its end. It requires additional (non-generic) 
> handling in app code.

This kind of specific configuration could be done with devargs.

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