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Netgate 4200 Speed Default Shift Settings Causing Latency Issues?

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  • D
    Doods1130
    last edited by Jul 24, 2024, 12:36 PM

    I did the factory reset last night and it didn't make a difference. Starting to wonder if I got a bad unit. It'll stop answering DNS queries once in a while I noticed yesterday. I really don't want to spend much time troubleshooting it.

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    • D
      Doods1130
      last edited by Jul 25, 2024, 12:24 PM

      Did another reinstall last night to install a nvme drive. When I did the reinstall, I chose 23.09 instead of 24.03. Using 23.09 seems to have resolved all of my problems. On 23.09, the nics are using all 4 rss queues instead of 1, and my latency is back down to what the sg2100 used to be.

      Should I report this somewhere as it may be a regression?

      R S 2 Replies Last reply Jul 25, 2024, 1:00 PM Reply Quote 0
      • R
        RKiFkRyCevGvpLeXMove @Doods1130
        last edited by Jul 25, 2024, 1:00 PM

        @Doods1130 Maybe it has something to do with this:

        https://forum.netgate.com/topic/138174/pfsense-vtnet-lack-of-queues/5

        "You can have shaping, or you can have queues, but you can't have both on vtnet. Since pfSense uses ALTQ for shaping, that gets defined."

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        • S
          SteveITS Galactic Empire @Doods1130
          last edited by Jul 25, 2024, 7:44 PM

          @Doods1130 redmine.pfsense.org is the bug report/feature request home.

          Pre-2.7.2/23.09: Only install packages for your version, or risk breaking it. Select your branch in System/Update/Update Settings.
          When upgrading, allow 10-15 minutes to restart, or more depending on packages and device speed.
          Upvote 👍 helpful posts!

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          • R
            RKiFkRyCevGvpLeXMove
            last edited by Jul 26, 2024, 3:49 AM

            Back to the original topic, anyone have guidance on optimal Speed Shift settings to minimize latency?

            S 1 Reply Last reply Jul 30, 2024, 6:35 PM Reply Quote 0
            • D
              Doods1130
              last edited by Jul 26, 2024, 12:56 PM

              I cannot find a measurable or noticeable difference between 0, 50, and 80. My 4200 was set at 80 when I got it so I've put it back to that and left it.

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              • S
                stephenw10 Netgate Administrator @RKiFkRyCevGvpLeXMove
                last edited by Jul 30, 2024, 6:35 PM

                @RKiFkRyCevGvpLeXMove said in Netgate 4200 Speed Default Shift Settings Causing Latency Issues?:

                anyone have guidance on optimal Speed Shift settings to minimize latency?

                Speedshift works extremely fast. Far faster that speedstep. But if you want lowest latency just disable it entirely.

                The number of receive queues is set to 1 specifically for the 4200 in all versions that support it.

                D 1 Reply Last reply Jul 30, 2024, 7:59 PM Reply Quote 1
                • D
                  Doods1130 @stephenw10
                  last edited by Jul 30, 2024, 7:59 PM

                  @stephenw10 said in Netgate 4200 Speed Default Shift Settings Causing Latency Issues?:

                  The number of receive queues is set to 1 specifically for the 4200 in all versions that support it.

                  Pardon my curiosity, but what's special about the 4200 that makes 1 queue the best option?

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                  • S
                    stephenw10 Netgate Administrator
                    last edited by Jul 30, 2024, 8:10 PM

                    The maximum total throughput is significantly better when a single receive queue per NIC is used. Though if you are passing no more than 2.5Gbps (total) it is not required.

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                      RKiFkRyCevGvpLeXMove @RKiFkRyCevGvpLeXMove
                      last edited by Aug 8, 2024, 8:22 PM

                      For the record, I set speed shift back to 80 last week, and this week has been fine. I think the issue was just a coincidence of my timing with regards to upgrading to the 4200 and the croudstrike issues.

                      1 Reply Last reply Reply Quote 1
                      • J
                        jackhicks121
                        last edited by Aug 19, 2024, 4:43 PM

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