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    PfSense underperforming, high jitter + random packet loss

    Scheduled Pinned Locked Moved General pfSense Questions
    27 Posts 3 Posters 7.1k Views
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    • C
      Chrismallia
      last edited by

      @w0w

      You get great results :) using fq_codel. The minimum  ping spike I could get was 150 something just on download, upload is fine , but I think ISP matters and also that you have a symmetrical  speed  makes a difference

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      • w0wW
        w0w
        last edited by

        Chrismallia, yes it's ISP, just very good ISP network at least in my location.
        NaterGator, it's FreeBSD, but I don't think anybody cares ALTQ CODELQ, you have alternative with HFSC and codel enabled queue. I think next 3-5 years we will see some progress for IPFW or ALTQ — it does not matter they both need code to be rewritten from scratch, because of used 32-bit integers they both do not support modern traffic bandwidth (over 4 Gigs/sec).

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        • N
          NaterGator
          last edited by

          @w0w:

          NaterGator, it's FreeBSD, but I don't think anybody cares ALTQ CODELQ, you have alternative with HFSC and codel enabled queue. I think next 3-5 years we will see some progress for IPFW or ALTQ — it does not matter they both need code to be rewritten from scratch, because of used 32-bit integers they both do not support modern traffic bandwidth (over 4 Gigs/sec).

          Hmm, I do see this issue in HFSC with and without codel enabled. What I'm saying is any altq enabled shaping at all triggers the issue.

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          • C
            Chrismallia
            last edited by

            w0w

            What is strange for me is that with no traffic shaping I get low ping spikes  on download and high ping spikes on upload, when enabling any shaping including fq  I get low ping spikes on upload but then get high ping spikes on download,  see my results in post 3 if you may, I cant understand it

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            • w0wW
              w0w
              last edited by

              NaterGator, I did not tested HFSC for a long time, but I can test it also, later this week. Can you provide more settings regarding queues you have used? Did you change any other settings like RED or ECN, priority, queue limit in packets?

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              • w0wW
                w0w
                last edited by

                @Chrismallia:

                w0w

                What is strange for me is that with no traffic shaping I get low ping spikes  on download and high ping spikes on upload, when enabling any shaping including fq  I get low ping spikes on upload but then get high ping spikes on download,  see my results in post 3 if you may, I cant understand it

                I have had some similar results, but I am not sure if it's some DSLreports bug or anything else, their server, or other problems, ex. ISP.
                You should repeat your tests 10 times at least with traffic shaping and without, to make some conclusions.

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                • w0wW
                  w0w
                  last edited by

                  http://www.dslreports.com/speedtest/27223186 ALTQ HFSC codel enabled queue + ECN, dslreports 24/6 HD enabled
                  https://www.dslreports.com/speedtest/27223235 ALTQ HFSC codel enabled queue + ECN, dslreports 30/30 HD enabled — twice got failed due to overall timeout. error:2
                  http://www.dslreports.com/speedtest/27223412 FQ_CODEL again

                  NaterGator did you try to set bandwidth limit for the ALQ shapers more tighten then for FQ_CODEL? I think it can be possible reason for the spikes you've got. The overhead for the ALTQ is slightly bigger so it's possible that it fails on a bandwidth limit. To make sure put the bandwidth to 50% of overall.

                  I can not explain why dslreports often fails to start with ALTQ CODEL and FQ_CODEL mostly never fails. May be it's by design of DSLreports or ALQ CODEL.  :D

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                  • N
                    NaterGator
                    last edited by

                    @w0w:

                    NaterGator did you try to set bandwidth limit for the ALQ shapers more tighten then for FQ_CODEL? I think it can be possible reason for the spikes you've got. The overhead for the ALTQ is slightly bigger so it's possible that it fails on a bandwidth limit. To make sure put the bandwidth to 50% of overall.

                    Oh yes, I tried some absurdly low limits just to be absolutely positive I had plenty of headroom, for example:
                    https://www.dslreports.com/speedtest/25228491

                    The insane spikey buffering effect from ALTQ is definitely still there.

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                    • w0wW
                      w0w
                      last edited by

                      Did you try ECN on ALTQ? It is enabled by default on IPFW FQ_CODEL.

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                      • N
                        NaterGator
                        last edited by

                        Yes, I tried with and without ECN.

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