(Reply inlined below, please learn howto reply inline) On Thu, 17 Jun 2021 12:20:32 -0300 "Ethy H. Brito" <ethy.brito@xxxxxxxxxxxx> wrote: > Hi. mr. Brouer > > I read your comment at lists.bufferbloat.net about my issue shaping traffic. https://lists.bufferbloat.net/pipermail/bloat/2021-June/016441.html > I don't know how it ended up there since I opened it at LARTC, I am > not a subscriber to bufferbloat list. Yes, Rich (cc) moved your email to the bufferbloat list. I just pointed out that your reported issue was a classical TC root-queue locking issue (as someone else mis-interpreted this). I'm Cc'ing XDP-newbies list, as we should share our finding with the community on how this TC-lock problem can be solve with XDP. > About your XDP-project solution, how can I test it? There a two solutions in XDP-project involving TC-BPF in combination with XDP. The one you are talking about is: [2] https://github.com/xdp-project/xdp-cpumap-tc > I read the "tc_mq_htb_setup_example.sh" script and did not understand > it completely. [3] https://github.com/xdp-project/xdp-cpumap-tc/blob/master/bin/tc_mq_htb_setup_example.sh > Do you think it will sove my problem? Well, yes, *but* notice there are some "home-work" in the bottom of the script. You need to code-up the redirecting to the appropriate CPUs yourself... it will be specific to your use-case if you can partition the traffic to avoid the TC root-lock. Can you explain you use-case for us? > Would you help with my doubts so I can implementing it? Let help each-other. It doesn't scale that I help on an individual level. That is why I bring this to the mailing list (xdp-newbies@xxxxxxxxxxxxxxx). Also Cc'ing Yoel and Robert, that have related interests in this. I do acknowledge that the documentation in [2] is lacking. Perhaps a goal should be that we add documentation on howto use it? A longer term goal is to add contents to this almost empty repo: https://github.com/xdp-project/BNG-router -- Best regards, Jesper Dangaard Brouer MSc.CS, Principal Kernel Engineer at Red Hat LinkedIn: http://www.linkedin.com/in/brouer
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