On Thu, Jan 05, 2017 at 04:00:36PM +0100, Jesper Dangaard Brouer wrote:
> Hi Vadim,
> I just noticed the new trafgen syntax, I really like it.
> I was playing with testing the kernels ICMP handling code and
> validating some change to the icmp rate-limiting, and wrote an trafgen
> conf for generating a "big" enough ping flood (as hping was not fast
> enough, and ping ratelimit itself).
> Old syntax here[1] and new[2].
>  [1] 
> https://github.com/netoptimizer/network-testing/blob/master/trafgen/icmp01_ping_flood.trafgen
>  [2] 
> https://github.com/netoptimizer/network-testing/blob/master/trafgen/icmp02_ping_flood.trafgen
> With the old syntax I could not express the seq number increment
> correctly (only 1 byte updated), with the new syntax I can.  The old
> dinc() is sort of "broken" IHMO.
> Commits[3] showing the transformation:
>  [3] https://github.com/netoptimizer/network-testing/commits/2b26ad7e66
> Thanks!
> -- 
> Best regards,
>   Jesper Dangaard Brouer
>   MSc.CS, Principal Kernel Engineer at Red Hat
>   LinkedIn: http://www.linkedin.com/in/brouer

Hi Jesper,

Yes, while introducing these proto dynamic functions I realized that
logic for the old/low-level "dinc" does not work well, and I tried add
separate implementation for new "dinc", I will try to unify them to use
only one logic.


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