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    [solved] pfSense (2.6.0 & 22.01 ) is very slow on Hyper-V

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    • Bob.DigB
      Bob.Dig LAYER 8 @stephenw10
      last edited by Bob.Dig

      @stephenw10 said in After Upgrade inter (V)LAN communication is very slow (on Hyper-V).:

      I'd like to check the sysctl and verbose boot logs from someone who is hitting this still with rsc seemingly disabled. Since we know they should be all zeros if it's actually disabled.

      Steve

      I would like to but I need description for dummies how to do it.

      m0njiM 1 Reply Last reply Reply Quote 0
      • m0njiM
        m0nji @Bob.Dig
        last edited by m0nji

        @bob-dig just open the VM preview window, reboot and on the boot screen hit the "boot options" and select verbose boot

        63e6e7d6-391f-42f5-b3ba-d3c8cde56986-image.png

        FreeBSD 12.3

        root@freebsd123:~ # grep -i "rsc" /var/log/messages
Feb 25 08:48:02 freebsd123 kernel: hn0: hwcaps rsc: ip4 1 ip6 1
Feb 25 08:48:02 freebsd123 kernel: hn0: offload rsc: ip4 2, ip6 2
Feb 25 08:48:02 freebsd123 kernel: hn1: hwcaps rsc: ip4 1 ip6 1
Feb 25 08:48:02 freebsd123 kernel: hn1: offload rsc: ip4 2, ip6 2
Feb 25 08:48:02 freebsd123 kernel: hn2: hwcaps rsc: ip4 1 ip6 1
Feb 25 08:48:02 freebsd123 kernel: hn2: offload rsc: ip4 2, ip6 2

        pfSense 2.6.0

        [2.6.0-RELEASE][admin@pfSense.home.arpa]/root: grep -i "rsc" /var/log/system.log                
Feb 25 07:56:22 pfSense kernel: hn0: hwcaps rsc: ip4 1 ip6 1
Feb 25 07:56:22 pfSense kernel: hn0: offload rsc: ip4 2, ip6 2
Feb 25 07:56:22 pfSense kernel: hn1: hwcaps rsc: ip4 1 ip6 1
Feb 25 07:56:22 pfSense kernel: hn1: offload rsc: ip4 2, ip6 2
Feb 25 07:56:22 pfSense kernel: hn2: hwcaps rsc: ip4 1 ip6 1
Feb 25 07:56:22 pfSense kernel: hn2: offload rsc: ip4 2, ip6 2

        Intel i3-N305 / 4 x 2.5Gbe LAN @2.7.2-Release
        WAN: Vodafone 1000/50, Telekom 250/40; Switch: USW Enterprise 8 PoE, USW Flex XG, US-8-60W; Wifi: Unifi 6 Lite AP, U6 Mesh

        Bob.DigB 1 Reply Last reply Reply Quote 1
        • Bob.DigB
          Bob.Dig LAYER 8 @m0nji
          last edited by Bob.Dig

          @m0nji I tried this with 2.5.2. I don't see anything regarding rsc in the logs or OS Boot log.
          Also where to put those commands in? If I try with putty, it gives my permission denied. In the WebUI there is no output as well.

          So I guess not noob friendly enough. 😓

          
Enter an option: 8

[2.5.2-RELEASE][admin@pfSense.home.arpa]/root: # grep -i "rsc" /var/log/messages                                      
#: Command not found.
[2.5.2-RELEASE][admin@pfSense.home.arpa]/root: grep -i "rsc" /var/log/system.log                                      
[2.5.2-RELEASE][admin@pfSense.home.arpa]/root: ~ # grep -i "rsc" /var/log/messages
/root: Permission denied.
[2.5.2-RELEASE][admin@pfSense.home.arpa]/root:
          m0njiM 1 Reply Last reply Reply Quote 0
          • m0njiM
            m0nji @Bob.Dig
            last edited by

            @bob-dig i think your output is correct. you should not see anything RSC related on pfSense 2.5.x

            This is what @stephenw10 said:
            "RSC support wasn't added to hn(4) until 12.3 so I would expect to see no sysctls there."

            Intel i3-N305 / 4 x 2.5Gbe LAN @2.7.2-Release
            WAN: Vodafone 1000/50, Telekom 250/40; Switch: USW Enterprise 8 PoE, USW Flex XG, US-8-60W; Wifi: Unifi 6 Lite AP, U6 Mesh

            Bob.DigB 1 Reply Last reply Reply Quote 1
            • Bob.DigB
              Bob.Dig LAYER 8 @m0nji
              last edited by Bob.Dig

              This post is deleted!
              m0njiM 1 Reply Last reply Reply Quote 0
              • m0njiM
                m0nji @Bob.Dig
                last edited by m0nji

                @bob-dig you missed a "."
                2a56818d-af59-4334-a94b-62baab96adfe-image.png

                hn.0 is probably the wan interface. you should also try hn.1, hn.2 and hn.3

                EDIT: you already fixed your post ;) try it also for hn1, hn2 and hn3. it depends which hn adapter you use

                EDIT2: if i understood it correctly, then none hn adapter should give you a value >0 if RSC is disabled. if it tells you a value >0 then the setting RSC disabled does not realy work

                Intel i3-N305 / 4 x 2.5Gbe LAN @2.7.2-Release
                WAN: Vodafone 1000/50, Telekom 250/40; Switch: USW Enterprise 8 PoE, USW Flex XG, US-8-60W; Wifi: Unifi 6 Lite AP, U6 Mesh

                Bob.DigB 1 Reply Last reply Reply Quote 1
                • Bob.DigB
                  Bob.Dig LAYER 8 @m0nji
                  last edited by Bob.Dig

                  2.6:

                  SoftwareRscEnabled RscOffloadEnabled
------------------ -----------------
             False             False
             False             False
             False             False

                  grep -i "rsc" /var/log/system.log

                  Feb 25 13:18:24 pfSense kernel: hn0: hwcaps rsc: ip4 1 ip6 1
Feb 25 13:18:24 pfSense kernel: hn0: offload rsc: ip4 2, ip6 2
Feb 25 13:18:24 pfSense kernel: hn1: hwcaps rsc: ip4 1 ip6 1
Feb 25 13:18:24 pfSense kernel: hn1: offload rsc: ip4 2, ip6 2
Feb 25 13:18:24 pfSense kernel: hn2: hwcaps rsc: ip4 1 ip6 1
Feb 25 13:18:24 pfSense kernel: hn2: offload rsc: ip4 2, ip6 2

                  While "copying":

                  sysctl dev.hn.1.rx.0.rsc_drop
sysctl dev.hn.1.rx.0.rsc_pkts
sysctl dev.hn.2.rx.0.rsc_drop
sysctl dev.hn.2.rx.0.rsc_pkts

                  [2.6.0-RELEASE][root@pfSense.home.arpa]/root: sysctl dev.hn.1.rx.0.rsc_drop
dev.hn.1.rx.0.rsc_drop: 0
[2.6.0-RELEASE][root@pfSense.home.arpa]/root: sysctl dev.hn.1.rx.0.rsc_pkts
dev.hn.1.rx.0.rsc_pkts: 0
[2.6.0-RELEASE][root@pfSense.home.arpa]/root: sysctl dev.hn.2.rx.0.rsc_drop
dev.hn.2.rx.0.rsc_drop: 0
[2.6.0-RELEASE][root@pfSense.home.arpa]/root: sysctl dev.hn.2.rx.0.rsc_pkts
dev.hn.2.rx.0.rsc_pkts: 107

                  The last number constantly rises.

                  Everything stays the same for me if I re-enable rsc in Windows, no difference at all.

                  SoftwareRscEnabled RscOffloadEnabled
------------------ -----------------
              True             False
              True             False
              True             False
                  1 Reply Last reply Reply Quote 1
                  • stephenw10S
                    stephenw10 Netgate Administrator
                    last edited by

                    Hmm, so just to be clear you are seeing the RSC packets counter increment whether or not you have disabled RSC on the vswitch that interface is connected to?

                    That seems like a different result to those for whom disabling RSC solved the issue. And seems to support my conjecture... 🤔

                    Unclear what we can do about it though if that is the case. Yet.

                    Steve

                    Bob.DigB 1 Reply Last reply Reply Quote 0
                    • Bob.DigB
                      Bob.Dig LAYER 8 @stephenw10
                      last edited by

                      @stephenw10 said in After Upgrade inter (V)LAN communication is very slow (on Hyper-V).:

                      Hmm, so just to be clear you are seeing the RSC packets counter increment whether or not you have disabled RSC on the vswitch that interface is connected to?

                      True

                      Unclear what we can do about it though if that is the case. Yet.

                      I hope you guys figure it out.

                      1 Reply Last reply Reply Quote 0
                      • stephenw10S
                        stephenw10 Netgate Administrator
                        last edited by

                        Ok, so we need more data points here to be sure it's actually what's happening.

                        But assuming that's true it appears:
                        There's an issue with the RSC code added in FreeBSD.
                        In some situations the vswitches in hyper-v do not respect the disable RSC setting.

                        Steve

                        1 Reply Last reply Reply Quote 0
                        • stephenw10S
                          stephenw10 Netgate Administrator
                          last edited by

                          Ok, so it looks like our European friends in fact already hit this because they are actually building on 13-stable and came to the same conclusions. I have opened a bug report: https://redmine.pfsense.org/issues/12873

                          Steve

                          1 Reply Last reply Reply Quote 1
                          • stephenw10S
                            stephenw10 Netgate Administrator
                            last edited by

                            What do you guys see for these sysctls?:

                            dev.hn.0.hwassist: 607<CSUM_IP,CSUM_IP_UDP,CSUM_IP_TCP,CSUM_IP6_UDP,CSUM_IP6_TCP>
dev.hn.0.caps: 7ff<VLAN,MTU,IPCS,TCP4CS,TCP6CS,UDP4CS,UDP6CS,TSO4,TSO6,HASHVAL,UDPHASH>
dev.hn.0.ndis_version: 6.30
dev.hn.0.nvs_version: 393217

                            Please report whether or not you're hitting the issue with the values shown.

                            Bob.DigB m0njiM 2 Replies Last reply Reply Quote 0
                            • Bob.DigB
                              Bob.Dig LAYER 8 @stephenw10
                              last edited by Bob.Dig

                              @stephenw10 Hittin it hard

                              sysctl dev.hn.0.hwassist
sysctl dev.hn.0.caps
sysctl dev.hn.0.ndis_version
sysctl dev.hn.0.nvs_version

                              2.5.2
dev.hn.0.hwassist: 1617<CSUM_IP,CSUM_IP_UDP,CSUM_IP_TCP,CSUM_IP_TSO,CSUM_IP6_UDP,CSUM_IP6_TCP,CSUM_IP6_TSO>
dev.hn.0.caps: 7ff<VLAN,MTU,IPCS,TCP4CS,TCP6CS,UDP4CS,UDP6CS,TSO4,TSO6,HASHVAL,UDPHASH>
dev.hn.0.ndis_version: 6.30
dev.hn.0.nvs_version: 327680

2.6.0
dev.hn.0.hwassist: 607<CSUM_IP,CSUM_IP_UDP,CSUM_IP_TCP,CSUM_IP6_UDP,CSUM_IP6_TCP>
dev.hn.0.caps: 7ff<VLAN,MTU,IPCS,TCP4CS,TCP6CS,UDP4CS,UDP6CS,TSO4,TSO6,HASHVAL,UDPHASH>
dev.hn.0.ndis_version: 6.30
dev.hn.0.nvs_version: 393217

                              Although this time I haven't deactivated RSC in Windows Host.

                              1 Reply Last reply Reply Quote 1
                              • m0njiM
                                m0nji @stephenw10
                                last edited by

                                @stephenw10

                                RSC disabled on Hyper-V Host

                                PS C:\Users\m0nji\Downloads\iperf-3.1.3-win64\iperf-3.1.3-win64> .\iperf3.exe -c 192.168.187.11 -R
Connecting to host 192.168.187.11, port 5201
Reverse mode, remote host 192.168.187.11 is sending
[  4] local 192.168.189.10 port 49995 connected to 192.168.187.11 port 5201
[ ID] Interval           Transfer     Bandwidth
[  4]   0.00-1.00   sec  55.6 KBytes   454 Kbits/sec
[  4]   1.00-2.01   sec  21.4 KBytes   174 Kbits/sec
[  4]   2.01-3.00   sec  21.4 KBytes   176 Kbits/sec
[  4]   3.00-4.00   sec  21.4 KBytes   175 Kbits/sec
[  4]   4.00-5.00   sec  17.1 KBytes   140 Kbits/sec
[  4]   5.00-6.00   sec  21.4 KBytes   175 Kbits/sec
[  4]   6.00-7.00   sec  21.4 KBytes   175 Kbits/sec
[  4]   7.00-8.01   sec  15.7 KBytes   128 Kbits/sec
[  4]   8.01-9.00   sec  20.0 KBytes   165 Kbits/sec
[  4]   9.00-10.00  sec  21.4 KBytes   175 Kbits/sec
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval           Transfer     Bandwidth
[  4]   0.00-10.00  sec   384 KBytes   314 Kbits/sec                  sender
[  4]   0.00-10.00  sec   237 KBytes   194 Kbits/sec                  receiver

iperf Done.

                                pfSense 2.6.0 (hitting the issue)

                                dev.hn.0.hwassist: 607<CSUM_IP,CSUM_IP_UDP,CSUM_IP_TCP,CSUM_IP6_UDP,CSUM_IP6_TCP>
dev.hn.0.caps: 7ff<VLAN,MTU,IPCS,TCP4CS,TCP6CS,UDP4CS,UDP6CS,TSO4,TSO6,HASHVAL,UDPHASH>
dev.hn.0.ndis_version: 6.30
dev.hn.0.nvs_version: 393217
dev.hn.1.hwassist: 607<CSUM_IP,CSUM_IP_UDP,CSUM_IP_TCP,CSUM_IP6_UDP,CSUM_IP6_TCP>
dev.hn.1.caps: 7ff<VLAN,MTU,IPCS,TCP4CS,TCP6CS,UDP4CS,UDP6CS,TSO4,TSO6,HASHVAL,UDPHASH>
dev.hn.1.ndis_version: 6.30
dev.hn.1.nvs_version: 393217
dev.hn.2.hwassist: 607<CSUM_IP,CSUM_IP_UDP,CSUM_IP_TCP,CSUM_IP6_UDP,CSUM_IP6_TCP>
dev.hn.2.caps: 7ff<VLAN,MTU,IPCS,TCP4CS,TCP6CS,UDP4CS,UDP6CS,TSO4,TSO6,HASHVAL,UDPHASH>
dev.hn.2.ndis_version: 6.30
dev.hn.2.nvs_version: 393217

                                for comparision FreeBSD 12.3 (hitting the issue)

                                dev.hn.0.hwassist: 17<CSUM_IP,CSUM_IP_UDP,CSUM_IP_TCP,CSUM_IP_TSO>
dev.hn.0.caps: 7ff<VLAN,MTU,IPCS,TCP4CS,TCP6CS,UDP4CS,UDP6CS,TSO4,TSO6,HASHVAL,UDPHASH>
dev.hn.0.ndis_version: 6.30
dev.hn.0.nvs_version: 393217
dev.hn.1.hwassist: 17<CSUM_IP,CSUM_IP_UDP,CSUM_IP_TCP,CSUM_IP_TSO>
dev.hn.1.caps: 7ff<VLAN,MTU,IPCS,TCP4CS,TCP6CS,UDP4CS,UDP6CS,TSO4,TSO6,HASHVAL,UDPHASH>
dev.hn.1.ndis_version: 6.30
dev.hn.1.nvs_version: 393217
dev.hn.2.hwassist: 17<CSUM_IP,CSUM_IP_UDP,CSUM_IP_TCP,CSUM_IP_TSO>
dev.hn.2.caps: 7ff<VLAN,MTU,IPCS,TCP4CS,TCP6CS,UDP4CS,UDP6CS,TSO4,TSO6,HASHVAL,UDPHASH>
dev.hn.2.ndis_version: 6.30
dev.hn.2.nvs_version: 393217

                                FreeBSD 13.0 (not hitting the issue but obviously not STABLE version)

                                dev.hn.0.hwassist: 17<CSUM_IP,CSUM_IP_UDP,CSUM_IP_TCP,CSUM_IP_TSO>
dev.hn.0.caps: 7ff<VLAN,MTU,IPCS,TCP4CS,TCP6CS,UDP4CS,UDP6CS,TSO4,TSO6,HASHVAL,UDPHASH>
dev.hn.0.ndis_version: 6.30
dev.hn.0.nvs_version: 327680
dev.hn.1.hwassist: 17<CSUM_IP,CSUM_IP_UDP,CSUM_IP_TCP,CSUM_IP_TSO>
dev.hn.1.caps: 7ff<VLAN,MTU,IPCS,TCP4CS,TCP6CS,UDP4CS,UDP6CS,TSO4,TSO6,HASHVAL,UDPHASH>
dev.hn.1.ndis_version: 6.30
dev.hn.1.nvs_version: 327680
dev.hn.2.hwassist: 17<CSUM_IP,CSUM_IP_UDP,CSUM_IP_TCP,CSUM_IP_TSO>
dev.hn.2.caps: 7ff<VLAN,MTU,IPCS,TCP4CS,TCP6CS,UDP4CS,UDP6CS,TSO4,TSO6,HASHVAL,UDPHASH>
dev.hn.2.ndis_version: 6.30
dev.hn.2.nvs_version: 327680

                                Intel i3-N305 / 4 x 2.5Gbe LAN @2.7.2-Release
                                WAN: Vodafone 1000/50, Telekom 250/40; Switch: USW Enterprise 8 PoE, USW Flex XG, US-8-60W; Wifi: Unifi 6 Lite AP, U6 Mesh

                                1 Reply Last reply Reply Quote 1
                                • Bob.DigB
                                  Bob.Dig LAYER 8
                                  last edited by Bob.Dig

                                  I figured out an interim solution for me. I created two external Switches, one for pfSense and one for all the other VMs. With that it does work, no slow speed anymore. Drawback is, it is using one more port and everything goes through a physical Switch.

                                  1 Reply Last reply Reply Quote 0
                                  • stephenw10S
                                    stephenw10 Netgate Administrator
                                    last edited by

                                    So that's no routing between VMs in the same host? That seems like it's what should trigger this.

                                    Bob.DigB 1 Reply Last reply Reply Quote 0
                                    • Bob.DigB
                                      Bob.Dig LAYER 8 @stephenw10
                                      last edited by Bob.Dig

                                      @stephenw10 I think the key point is that pfsense is not using the same vSwitch then the others. This is an untypical setup and no one with a right mind would do it like this, but I did. And it does work here. I think I simulated "having two (vm) hosts", where it is natural, that the VMs can't use the same vSwitch.

                                      1 Reply Last reply Reply Quote 1
                                      • Bob.DigB
                                        Bob.Dig LAYER 8
                                        last edited by

                                        It feels like coming home, finally. 🤗

                                        yeha.png

                                        Still hope for a real fix to that situation some have for the future.

                                        1 Reply Last reply Reply Quote 0
                                        • i386DXI
                                          i386DX
                                          last edited by 

                                          Set-VMSwitch -Name "*" -EnableSoftwareRsc $false

Get-VMNetworkAdapter -VMName "vmname" | Where-Object {$_.MacAddress -eq "yourmacaddress"} | Set-VMNetworkAdapter -RscEnabled $false

                                          Seems to have worked for restoring both my wan upload and inter vlan throughput. Is there any official guidance on this?

                                          m0njiM 1 Reply Last reply Reply Quote 3
                                          • N
                                            n1ck31 @DD
                                            last edited by

                                            @dd Did you downgrade without a reinstall? The one time I forgot to take a snapshot and now I'm left with dialup speeds on my 10G server.

                                            1 Reply Last reply Reply Quote 0
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