Netgate Discussion Forum
    • Categories
    • Recent
    • Tags
    • Popular
    • Users
    • Search
    • Register
    • Login

    Network card speed limited to 286 MBit

    Scheduled Pinned Locked Moved General pfSense Questions
    19 Posts 4 Posters 5.4k Views
    Loading More Posts
    • Oldest to Newest
    • Newest to Oldest
    • Most Votes
    Reply
    • Reply as topic
    Log in to reply
    This topic has been deleted. Only users with topic management privileges can see it.
    • 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 ?

      1 Reply Last reply Reply Quote 0
      • 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.

        1 Reply Last reply Reply Quote 0
        • H Offline
          heper
          last edited by

          have you tried without (open)vmware-tools ?

          1 Reply Last reply Reply Quote 0
          • ? 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.

            1 Reply Last reply Reply Quote 0
            • H Offline
              heper
              last edited by

              For sure they should be installed.

              no they shouldn't, they are optional

              1 Reply Last reply Reply Quote 0
              • 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?

                1 Reply Last reply Reply Quote 0
                • 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.

                  1 Reply Last reply Reply Quote 0
                  • 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?

                    1 Reply Last reply Reply Quote 0
                    • 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.

                      1 Reply Last reply Reply Quote 0
                      • ? 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.

                        1 Reply Last reply Reply Quote 0
                        • 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?

                          1 Reply Last reply Reply Quote 0
                          • 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.

                            1 Reply Last reply Reply Quote 0
                            • First post
                              Last post
                            Copyright 2025 Rubicon Communications LLC (Netgate). All rights reserved.