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    Network card speed limited to 286 MBit

    Scheduled Pinned Locked Moved General pfSense Questions
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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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