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    Network card speed limited to 286 MBit

    Scheduled Pinned Locked Moved General pfSense Questions
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    • T Offline
      TheNetStriker
      last edited by

      @heper:

      i've never had issues with the e1000 nics to get towards gigabit speeds, so there is probably some sort of issue (autonegotiate ?)

      you could try the vmxnet3 nics … they should be able to push you towards 2-3gbit on fairly recent server hardware.

      third option would be to test the 2.3-RC snapshots

      The link is up as "1000baseT <full-duplex>" so the autonegotiate seams to be right.

      I've tried to switch the network adapters to vmxnet3. During the bootup I've configured the new interfaces as lan and wan, but after that I was unable to reach the webinterface and the ssh port. I was able to ping the firewall, but everything else was blocked. Also a ping from the firewall to the local network was possible. Is this a known problem after changing to this network card type and how can I solve it?

      I've also tested the 2.3-RC snapshots. With that I got to 325 Mbit, not much more than in 2.2. Any other ideas?</full-duplex>

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      • T Offline
        TheNetStriker
        last edited by

        @BlueKobold:

        Comparing a Linux distro without doing NAT and performing firewall rules against pfSense would be not really
        fair and wise! What kind of CPU is there inside of this Dell machine? How many rules, vlans and other things
        are running in pfSense or plain how many packets are installed?

        Here are the details about the CPU. (from CPU-Z)
        Name: Intel Xeon DP
        Codename: Dempsey
        Package: Socket 771 LGA
        Specification: Intel(R) Xeon(TM) CPU 3.00GHz (ES)
        Hyper Threading is deactivated

        Here are the details about my pfSense installation:

        Rules:
        8 wan rules
        5 lan rules
        1 OpenVPN rule

        Vlans:
        no vlans

        Running services:
        apinger
        dhcpd
        dnsmasq
        HAProxy
        miniupnpd
        ntpd
        openvpn
        squid
        sshd
        vmware-guestd

        Installed Packages:
        Cron
        haproxy-1_5
        iperf
        Lightsquid
        mailreport
        Open-VM-Tools
        OpenVPN Client Export Utility
        Sarg
        squid3
        System Patches

        Any idea what could slow down the transfer?

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        • H Offline
          heper
          last edited by

          any errors in logs? any interface errors? tried creating a new VM ? might there be an issue with the vswitches ?

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          • T Offline
            TheNetStriker
            last edited by

            @heper:

            any errors in logs? any interface errors? tried creating a new VM ? might there be an issue with the vswitches ?

            There are no "In/out errors" and no "Collisions" on the network interfaces.

            I've checked the system log since the last restart and the only error message I found was for the external interface:
            kernel: arpresolve: can't allocate llinfo for XXX.XXX.XXX.XXX on em1

            I don't think that there is an issue with the vm or the vswitches because I also tested the speed with iperf on an Ubuntu vm on the same server with the same network card type that is connected to the same vswitch and there I get speeds beyond 900 MBit.

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            • H Offline
              heper
              last edited by

              have you tried without (open)vmware-tools ?

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              • ? This user is from outside of this forum
                Guest
                last edited by

                Any idea what could slow down the transfer?

                Squid perhaps does or could be doing it.

                have you tried without (open)vmware-tools ?

                For sure they should be installed.

                I don't think that there is an issue with the vm or the vswitches because I also tested the speed with iperf on an Ubuntu vm on the same server with the same network card type that is connected to the same vswitch and there I get speeds beyond 900 MBit.

                Ubuntu, is not doing NAT, pfSense rules and Squid proxy so this could be really different from the pfSense
                test as I see it right.

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                • H Offline
                  heper
                  last edited by

                  For sure they should be installed.

                  no they shouldn't, they are optional

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                  • T Offline
                    TheNetStriker
                    last edited by

                    @BlueKobold:

                    Any idea what could slow down the transfer?

                    Squid perhaps does or could be doing it.

                    have you tried without (open)vmware-tools ?

                    For sure they should be installed.

                    I don't think that there is an issue with the vm or the vswitches because I also tested the speed with iperf on an Ubuntu vm on the same server with the same network card type that is connected to the same vswitch and there I get speeds beyond 900 MBit.

                    Ubuntu, is not doing NAT, pfSense rules and Squid proxy so this could be really different from the pfSense
                    test as I see it right.

                    I've disabled squid and removed the open vm tools package, but the speed is still under 300 MBit. I've also shut down every other machine on the ESXi server so pfSense can take all the resources, but event that did not help. I've noticed that the CPU speed doesn't go much over 50%. (55 was max as far as I've seen) Maybe the problem is that the firewall cannot use all four cpu cores?

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                    • H Offline
                      Harvy66
                      last edited by

                      What does system activity look like? If you're seeing something like 100% usage, then you're effectively CPU bound.

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                      • T Offline
                        TheNetStriker
                        last edited by

                        @Harvy66:

                        What does system activity look like? If you're seeing something like 100% usage, then you're effectively CPU bound.

                        Here is the output of top when running the iperf test:

                        
                        last pid: 32033;  load averages:  1.60,  0.74,  0.38    up 1+08:50:47  10:27:11
                        49 processes:  1 running, 48 sleeping
                        CPU:  3.2% user,  0.0% nice, 49.5% system,  0.1% interrupt, 47.2% idle
                        Mem: 17M Active, 130M Inact, 171M Wired, 175M Buf, 1642M Free
                        Swap: 4096M Total, 4096M Free
                        
                          PID USERNAME       THR PRI NICE   SIZE    RES STATE   C   TIME    WCPU COMMAN
                        77954 root             7  30    0 51952K  4528K sbwait  0   1:12  60.94% iperf
                        26538 www              1  20    0 33080K 10860K kqread  3   4:05   0.98% haprox
                        69605 root             1  52   20 17136K  2692K wait    2   0:44   0.98% sh
                        30253 root             1  52   20  8304K  1956K nanslp  2   0:00   0.98% sleep
                        21880 root             1  20    0    99M  9288K select  0   4:09   0.00% vmtool
                        27828 root             1  20    0 12456K  2128K select  1   0:52   0.00% apinge
                        62032 root             1  20    0 21160K  4740K select  0   0:40   0.00% miniup
                        44483 nobody           1  20    0 30264K  4324K select  1   0:23   0.00% dnsmas
                        54025 proxy            1  20    0   120M 29184K kqread  2   0:21   0.00% squid
                        40422 root             1  20    0 48692K  7892K kqread  1   0:17   0.00% lightt
                        19650 root             1  20    0 16804K  2292K bpf     1   0:17   0.00% filter
                          245 root             1  20    0   229M 21844K kqread  3   0:14   0.00% php-fp
                        69305 root             1  20    0 21732K  6136K select  1   0:13   0.00% openvp
                        65449 dhcpd            1  20    0 24848K 13832K select  1   0:09   0.00% dhcpd
                         3672 root             1  20    0 28344K 18104K select  3   0:09   0.00% ntpd
                        46979 root             1  20    0 14648K  2408K select  0   0:07   0.00% syslog
                        27862 root             1  20    0 28328K  2952K piperd  2   0:03   0.00% rrdtoo
                        
                        

                        I never saw that more than 64% of the cpu where used when pfsense was running the iperf server.

                        I've now tried switching iperf server and client so that pfsense is just the client and with that I am getting more speed. (about 433 MBit) I also get more CPU load. (about 90% at max) I think this means the limiting factor is the cpu.

                        I' am thinking about ordering a separate pfsense hardware firewall. (e.g. the "SG-4860 1U pfSense® Security Gateway Appliance") This firewall should get me near the 1 GBit throughoutput or is there better hardware for pfSense?

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                        • H Offline
                          Harvy66
                          last edited by

                          It typically comes down to hardware or configuration. My home PFSense box is getting about 3.9Gb/s at 15% load. That's tested with one client on the WAN connecting to a client in the LAN, and running iperf through the firewall, which also means NAT is going on. That was nearly 2Gb on the WAN port and another 2Gb on the LAN port.

                          I am using a Haswell i5 with an Intel i350-T2 NIC and running on the metal, no guest VM here.

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                          • ? This user is from outside of this forum
                            Guest
                            last edited by

                            I've noticed that the CPU speed doesn't go much over 50%. (55 was max as far as I've seen) Maybe the problem is that the firewall cannot use all four cpu cores?

                            At the WAN Port and using PPPoE it would be using only one single CPU core at the moment and not more.

                            I've now tried switching iperf server and client so that pfsense is just the client and with that I am getting more speed. (about 433 MBit) I also get more CPU load. (about 90% at max) I think this means the limiting factor is the cpu.

                            If I had to guess, you're being limited by your RAM speed more than anything else.

                            That's not quite how it works. The packet filter, the IP forwarding parts, and even NAT
                            (part of pf, but run at a different phase) all hit the memory system.

                            It's likely not that your CPU can't keep up, it's that your memory system is saturated.

                            I' am thinking about ordering a separate pfsense hardware firewall. (e.g. the "SG-4860 1U pfSense® Security Gateway Appliance") This firewall should get me near the 1 GBit throughoutput or is there better
                            hardware for pfSense?

                            It is likes it is for now, also there will only one CPU core be used for the entire WAN part, if PPPoE is in usage.

                            I am using a Haswell i5 with an Intel i350-T2 NIC and running on the metal, no guest VM here.

                            Will be a more strong and more powerful appliance then the older Intel Xeon CPUs and also with faster RAM
                            I would imagine and on top of this an Intel i5 core will be not the same as an lower end Intel Atom CPU or SoC
                            core that shoud be compared against. The Intel Core i5 CPU core is much more powerful the the other ones.
                            But if now, someone wnat to save eceltric power it could be a hint to go with a modern Intel Xeon E3-12xxv3
                            CPU with 4 CPU core running @3,xGHz or more to get the same results and with a new v5 one it could also
                            be used RAM with more Clock speed or frequency.

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                            • T Offline
                              TheNetStriker
                              last edited by

                              @BlueKobold:

                              I've noticed that the CPU speed doesn't go much over 50%. (55 was max as far as I've seen) Maybe the problem is that the firewall cannot use all four cpu cores?

                              At the WAN Port and using PPPoE it would be using only one single CPU core at the moment and not more.

                              I've now tried switching iperf server and client so that pfsense is just the client and with that I am getting more speed. (about 433 MBit) I also get more CPU load. (about 90% at max) I think this means the limiting factor is the cpu.

                              If I had to guess, you're being limited by your RAM speed more than anything else.

                              That's not quite how it works. The packet filter, the IP forwarding parts, and even NAT
                              (part of pf, but run at a different phase) all hit the memory system.

                              It's likely not that your CPU can't keep up, it's that your memory system is saturated.

                              I' am thinking about ordering a separate pfsense hardware firewall. (e.g. the "SG-4860 1U pfSense® Security Gateway Appliance") This firewall should get me near the 1 GBit throughoutput or is there better
                              hardware for pfSense?

                              It is likes it is for now, also there will only one CPU core be used for the entire WAN part, if PPPoE is in usage.

                              I am using a Haswell i5 with an Intel i350-T2 NIC and running on the metal, no guest VM here.

                              Will be a more strong and more powerful appliance then the older Intel Xeon CPUs and also with faster RAM
                              I would imagine and on top of this an Intel i5 core will be not the same as an lower end Intel Atom CPU or SoC
                              core that shoud be compared against. The Intel Core i5 CPU core is much more powerful the the other ones.
                              But if now, someone wnat to save eceltric power it could be a hint to go with a modern Intel Xeon E3-12xxv3
                              CPU with 4 CPU core running @3,xGHz or more to get the same results and with a new v5 one it could also
                              be used RAM with more Clock speed or frequency.

                              I'am not using PPPoE. I have a direct internet connection over ethernet. (Using a fiber to ethernet media converter)
                              I've done some ram speed tests with my Ubuntu VM:

                              
                              root@ubuntux64:~# mbw 32 | grep AVG
                              AVG	Method: MEMCPY	Elapsed: 0.04285	MiB: 32.00000	Copy: 746.781 MiB/s
                              AVG	Method: DUMB	Elapsed: 0.04170	MiB: 32.00000	Copy: 767.351 MiB/s
                              AVG	Method: MCBLOCK	Elapsed: 0.02452	MiB: 32.00000	Copy: 1305.249 MiB/s
                              root@ubuntux64:~# mbw -b 4096 32 | grep AVG
                              AVG	Method: MEMCPY	Elapsed: 0.04103	MiB: 32.00000	Copy: 779.965 MiB/s
                              AVG	Method: DUMB	Elapsed: 0.04168	MiB: 32.00000	Copy: 767.845 MiB/s
                              AVG	Method: MCBLOCK	Elapsed: 0.02514	MiB: 32.00000	Copy: 1273.080 MiB/s
                              
                              

                              Is my ram to slow to get the gigabit through output?

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                              • T Offline
                                TheNetStriker
                                last edited by

                                Update:

                                I'am now running a pfSense Firewall on a Dell PowerEdge R220 using this fiber card: https://www.startech.com/ch/Netzwerk-IO/Adapter-Karten/PCIe-Gigabit-Ethernet-LWL-Karte-Offen-SFP~PEX1000SFP2

                                I now got almost Gigabit througoutput. (about 940 MBits) The hardware works very good with pfSense.

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