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    Iperf testing, same subnet, inconsistent speeds.

    Scheduled Pinned Locked Moved General pfSense Questions
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    • johnpozJ
      johnpoz LAYER 8 Global Moderator @erasedhammer
      last edited by

      @erasedhammer did this slow down recently? Were you before seeing 100MBps file copies?

      An intelligent man is sometimes forced to be drunk to spend time with his fools
      If you get confused: Listen to the Music Play
      Please don't Chat/PM me for help, unless mod related
      SG-4860 24.11 | Lab VMs 2.8, 24.11

      keyserK 1 Reply Last reply Reply Quote 0
      • keyserK
        keyser Rebel Alliance @johnpoz
        last edited by

        @johnpoz Would love to help, but I cannot see the starting posts of the conversation, and some of the details that have been posted.

        What makes this forum remove some of the initial posts so we can only see later replies (some of which quotes former answers I cannot see either)?

        Love the no fuss of using the official appliances :-)

        johnpozJ 1 Reply Last reply Reply Quote 0
        • E
          erasedhammer
          last edited by

          @johnpoz
          I went back and reviewed network interface metrics over the past year, and I replaced my DS218 with the RS819 back in March. All the historical data for the RS819 shows it never exceeded 500Mbit/s. The DS218 historical data shows it hitting 930Mbit/s regularly.

          One thing that may be the issue is the RS819 has an "Adaptive Load Balancing" feature using its two RJ45 1Gig ports (I guess fake LAGG?). It doesn't require any support for the connected switch.

          But, then again I believe iperf3 should have shown something if the fake LAGG was the problem.

          1 Reply Last reply Reply Quote 0
          • johnpozJ
            johnpoz LAYER 8 Global Moderator @keyser
            last edited by johnpoz

            @keyser said in Iperf testing, same subnet, inconsistent speeds.:

            What makes this forum remove some of the initial posts so we can only see later replies (some of which quotes former answers I cannot see either)?

            huh? I don't see any deleted posts, and see the first post, etc.. Do you happen to have the OP blocked?

            edit: could you post up a screenshot of the area where you think something is missing? I can post a screenshot of the whole thread, and you could point out what your missing?

            pic of thread
            thread.jpg

            An intelligent man is sometimes forced to be drunk to spend time with his fools
            If you get confused: Listen to the Music Play
            Please don't Chat/PM me for help, unless mod related
            SG-4860 24.11 | Lab VMs 2.8, 24.11

            keyserK 1 Reply Last reply Reply Quote 0
            • keyserK
              keyser Rebel Alliance @johnpoz
              last edited by

              @johnpoz Okay, that was weird... I didn't block the OP, and in the end I tried Firefox and it worked fine.
              So cleared my cache for the site completely in chrome and presto - everything is visible...
              How that can happen is beyond me, but it's working now. Thanks for posting the picture so I could see it was my browser view that was "screwed up" :-)

              Love the no fuss of using the official appliances :-)

              1 Reply Last reply Reply Quote 0
              • keyserK
                keyser Rebel Alliance @erasedhammer
                last edited by keyser

                @erasedhammer said in Iperf testing, same subnet, inconsistent speeds.:

                I've been trying to nail down for a while why my LAN speeds (PC to NAS) were always stuck at around 40-60MB/s.

                Doing some iperf testing between my PC and pfsense (so local subnet):

                PC to Pfsense:
                iperf 3.7
                Linux host 5.11.0-41-generic #45~20.04.1-Ubuntu SMP Wed Nov 10 10:20:10 UTC 2021 x86_64
                Control connection MSS 1448
                Time: Mon, 13 Dec 2021 18:52:12 GMT
                Connecting to host 10.10.0.1, port 4444
                      Cookie: phntfxguuude3t4vnhys7yqikgmhupgl6ygc
                      TCP MSS: 1448 (default)
                [  5] local 10.10.0.2 port 53916 connected to 10.10.0.1 port 4444
                Starting Test: protocol: TCP, 1 streams, 131072 byte blocks, omitting 0 seconds, 10 second test, tos 0
                [ ID] Interval           Transfer     Bitrate         Retr  Cwnd
                [  5]   0.00-1.00   sec   113 MBytes   947 Mbits/sec    0    153 KBytes       
                [  5]   1.00-2.00   sec   112 MBytes   942 Mbits/sec    0    153 KBytes       
                [  5]   2.00-3.00   sec   112 MBytes   940 Mbits/sec    0    153 KBytes       
                [  5]   3.00-4.00   sec   112 MBytes   940 Mbits/sec    0    153 KBytes       
                [  5]   4.00-5.00   sec   112 MBytes   942 Mbits/sec    0    153 KBytes       
                [  5]   5.00-6.00   sec   112 MBytes   940 Mbits/sec    0    153 KBytes       
                [  5]   6.00-7.00   sec   112 MBytes   943 Mbits/sec    0    153 KBytes       
                [  5]   7.00-8.00   sec   112 MBytes   940 Mbits/sec    0    153 KBytes       
                [  5]   8.00-9.00   sec   112 MBytes   942 Mbits/sec    0    153 KBytes       
                [  5]   9.00-10.00  sec   112 MBytes   940 Mbits/sec    0    153 KBytes       
                - - - - - - - - - - - - - - - - - - - - - - - - -
                Test Complete. Summary Results:
                [ ID] Interval           Transfer     Bitrate         Retr
                [  5]   0.00-10.00  sec  1.10 GBytes   942 Mbits/sec    0             sender
                [  5]   0.00-10.00  sec  1.10 GBytes   941 Mbits/sec                  receiver
                CPU Utilization: local/sender 3.5% (0.4%u/3.0%s), remote/receiver 67.7% (12.9%u/54.9%s)
                snd_tcp_congestion cubic
                rcv_tcp_congestion newreno
                
                iperf Done.
                
                
                
                Pfsense to PC:
                iperf 3.10.1
                FreeBSD host 12.2-STABLE FreeBSD 12.2-STABLE plus-RELENG_21_05_2-n202579-3b8ea9b365a pfSense amd64
                Control connection MSS 1460
                Time: Mon, 13 Dec 2021 18:52:49 UTC
                Connecting to host 10.10.0.2, port 4444
                      Cookie: rwbdamlfvghiksxmgxi27ii2u4leuthzhab3
                      TCP MSS: 1460 (default)
                [  5] local 10.10.0.1 port 64301 connected to 10.10.0.2 port 4444
                Starting Test: protocol: TCP, 1 streams, 131072 byte blocks, omitting 0 seconds, 10 second test, tos 0
                [ ID] Interval           Transfer     Bitrate         Retr  Cwnd
                [  5]   0.00-1.00   sec  71.8 MBytes  71.8 MBytes/sec  3283   24.1 KBytes       
                [  5]   1.00-2.00   sec  53.9 MBytes  54.0 MBytes/sec  2376   27.0 KBytes       
                [  5]   2.00-3.00   sec  71.4 MBytes  71.4 MBytes/sec  3194   1.41 KBytes       
                [  5]   3.00-4.00   sec  70.8 MBytes  70.8 MBytes/sec  3267   18.4 KBytes       
                [  5]   4.00-5.00   sec  73.3 MBytes  73.3 MBytes/sec  3180   1.41 KBytes       
                [  5]   5.00-6.00   sec  64.8 MBytes  64.8 MBytes/sec  2952   25.6 KBytes       
                [  5]   6.00-7.00   sec  69.1 MBytes  69.1 MBytes/sec  3275   2.83 KBytes       
                [  5]   7.00-8.00   sec  52.5 MBytes  52.5 MBytes/sec  2537   1.41 KBytes       
                [  5]   8.00-9.00   sec  69.9 MBytes  69.9 MBytes/sec  3296   25.6 KBytes       
                [  5]   9.00-10.00  sec  68.6 MBytes  68.6 MBytes/sec  3144   1.41 KBytes       
                - - - - - - - - - - - - - - - - - - - - - - - - -
                Test Complete. Summary Results:
                [ ID] Interval           Transfer     Bitrate         Retr
                [  5]   0.00-10.00  sec   666 MBytes  66.6 MBytes/sec  30504             sender
                [  5]   0.00-10.21  sec   666 MBytes  65.2 MBytes/sec                  receiver
                CPU Utilization: local/sender 57.0% (1.7%u/55.3%s), remote/receiver 12.0% (1.7%u/10.3%s)
                snd_tcp_congestion newreno
                rcv_tcp_congestion cubic
                
                iperf Done.
                

                Pfsense interface information:

                ix1: flags=8943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST> metric 0 mtu 1500
                	description: Admin
                	options=e138bb<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,JUMBO_MTU,VLAN_HWCSUM,WOL_UCAST,WOL_MCAST,WOL_MAGIC,VLAN_HWFILTER,RXCSUM_IPV6,TXCSUM_IPV6>
                	capabilities=f53fbb<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,JUMBO_MTU,VLAN_HWCSUM,TSO4,TSO6,LRO,WOL_UCAST,WOL_MCAST,WOL_MAGIC,VLAN_HWFILTER,VLAN_HWTSO,NETMAP,RXCSUM_IPV6,TXCSUM_IPV6>
                	ether 00:08:a2:0f:13:b1
                	inet6 fe80::208:a2ff:fe0f:13b1%ix1 prefixlen 64 scopeid 0x2
                	inet 10.10.0.1 netmask 0xfffffff0 broadcast 10.10.0.15
                	media: Ethernet autoselect (10Gbase-SR <full-duplex,rxpause,txpause>)
                	status: active
                	supported media:
                		media autoselect
                		media 1000baseSX
                		media 10Gbase-SR
                	nd6 options=21<PERFORMNUD,AUTO_LINKLOCAL>
                	plugged: SFP/SFP+/SFP28 10G Base-SR (LC)
                	vendor: QSFPTEK PN: QT-SFP-10G-T SN: QT202003110117 DATE: 2020-11-25
                	module temperature: 51.25 C Voltage: 3.30 Volts
                	RX: 0.40 mW (-3.98 dBm) TX: 0.50 mW (-3.01 dBm)
                
                	SFF8472 DUMP (0xA0 0..127 range):
                	03 04 07 10 00 00 01 00 00 00 00 06 67 00 00 00
                	1E 1E 00 1E 51 53 46 50 54 45 4B 20 20 20 20 20
                	20 20 20 20 00 00 1B 21 51 54 2D 53 46 50 2D 31
                	30 47 2D 54 20 20 20 20 47 32 2E 33 03 52 00 20
                	00 3A 00 00 51 54 32 30 32 30 30 33 31 31 30 31
                	31 37 20 20 32 30 31 31 32 35 20 20 68 F8 03 3F
                	00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
                	00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
                

                Physical topology is my PC connected to a dumb gigabit switch, then connected through a ~50ft cat5e cable to an RJ45 SFP+ connector on my Netgate xg-7100

                The tests seem to be almost identical, but why is the "download" to my PC not hitting full gigabit?

                Your problem is the SFP+ RJ45 tranciever in your pfSense. You can do full GigE from NAS to and from pfSense, you can only do full GigE to but not from pfSense to your PC.
                I have had millions of issues with SFP+ trancievers (especially 10Gbe) in several pfSense boxes where one direction is fine, the other is not.
                I realize yours is a RJ45 1Gbe SFP+ adapter, but that still plugs as a 10Gbe tranciever, so I would expect it to be sensitive to the very same problems.

                Try wiring your PC to one of the 1Gbe Switch ports instead. Then you NAS <-> pfSense <-> PC iPerf and SMB filecopy will show full GigE i both directions :-)

                Love the no fuss of using the official appliances :-)

                1 Reply Last reply Reply Quote 0
                • AndyRHA
                  AndyRH
                  last edited by

                  Did I miss something? The original post shows about 30k retries. That is a dirty connection. iperf has done its job and pointed to the problem.

                  For reference I have trouble getting a copy on all flash NetApps to run faster than about 2 to 3 Gb/s when doing a file copy with large files. These systems are running clean LACP 2x10Gb. In aggregate they easily exceed 10Gb, but when reading/writing to a single file system they are limited to how the file table works, block allocation is single threaded.
                  Assuming you are all flash, it is still consumer level HW not backed by plenty of cache. Windows and Linux are not optimized in a way to make file transfers super fast. Just a guess, but I doubt Synology NAS systems are actually highly optimized Linux systems. Meaning you are limited by other things in the OS and file system management.
                  Watch for the write cliff with SSDs. They all run at blazing speed then hit a cliff and performance falls off dramatically.
                  Networking and pfSense are a hobby, storage has fed the family for 20 years.

                  o||||o
                  7100-1u

                  keyserK 1 Reply Last reply Reply Quote 0
                  • keyserK
                    keyser Rebel Alliance @AndyRH
                    last edited by

                    @andyrh said in Iperf testing, same subnet, inconsistent speeds.:

                    Did I miss something? The original post shows about 30k retries. That is a dirty connection. iperf has done its job and pointed to the problem.

                    For reference I have trouble getting a copy on all flash NetApps to run faster than about 2 to 3 Gb/s when doing a file copy with large files. These systems are running clean LACP 2x10Gb. In aggregate they easily exceed 10Gb, but when reading/writing to a single file system they are limited to how the file table works, block allocation is single threaded.
                    Assuming you are all flash, it is still consumer level HW not backed by plenty of cache. Windows and Linux are not optimized in a way to make file transfers super fast. Just a guess, but I doubt Synology NAS systems are actually highly optimized Linux systems. Meaning you are limited by other things in the OS and file system management.
                    Watch for the write cliff with SSDs. They all run at blazing speed then hit a cliff and performance falls off dramatically.
                    Networking and pfSense are a hobby, storage has fed the family for 20 years.

                    Exactly, that is very very likely caused by the SFP+ -> RJ45 tranciever.

                    For the record: One of these NAS's with 4 spinning drives in Raid 5/6 will do 112 MB/s (Full GigE) easily in any somewhat sequential workload - even with copying thousands of files as long as they are 1 MB+ in size and the drives does not get bogged down in filetable updates.

                    Love the no fuss of using the official appliances :-)

                    johnpozJ 1 Reply Last reply Reply Quote 0
                    • johnpozJ
                      johnpoz LAYER 8 Global Moderator @keyser
                      last edited by johnpoz

                      The nas and PC are connected to dumb switch.. The sfp connection doesn't come into play when pc talking to nas

                      An intelligent man is sometimes forced to be drunk to spend time with his fools
                      If you get confused: Listen to the Music Play
                      Please don't Chat/PM me for help, unless mod related
                      SG-4860 24.11 | Lab VMs 2.8, 24.11

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

                        Are you sure? Why do we have only the ix1 info then? That could be connected to the switch, no?

                        johnpozJ 1 Reply Last reply Reply Quote 0
                        • johnpozJ
                          johnpoz LAYER 8 Global Moderator @stephenw10
                          last edited by johnpoz

                          @stephenw10 said in Iperf testing, same subnet, inconsistent speeds.:

                          Are you sure?

                          No not really.. But seems more logical.. And if the sfp was problematic, he would of seen that issue when testing between pc and nas.

                          Where is the nas connected if the pc is directly connected to the pfsense.. He makes no mention of bridge, etc. And that the pc and nas are on the same network.

                          The port of on his pfsense is the uplink from the switch..

                          And when stated that pfsense is not part of the conversation between pc and nas he agreed, etc. So to me the pc and nas are connected to the switch, like any normal setup.

                          Look at his tests between pc and nas - his wire speed is not the issue for his slow file copies.

                          An intelligent man is sometimes forced to be drunk to spend time with his fools
                          If you get confused: Listen to the Music Play
                          Please don't Chat/PM me for help, unless mod related
                          SG-4860 24.11 | Lab VMs 2.8, 24.11

                          E 1 Reply Last reply Reply Quote 1
                          • E
                            erasedhammer @johnpoz
                            last edited by

                            @johnpoz

                            I should probably clarify, My setup is not exactly standard.

                            My NAS is connected to the built in marvel switch on my XG-7100. My PC is connected to a 5 port dumb switch, which is then connected to the SFP+ port on pfsense.

                            Here's a drawing so we don't get confused.

                            drawing.PNG

                            E 1 Reply Last reply Reply Quote 0
                            • E
                              erasedhammer @erasedhammer
                              last edited by erasedhammer

                              Just to add another data point. I tried scp a file of random junk, both 500MB and 1GB to both the synology flash disk and the RAID array and got the same speeds:

                              1GB scp to RAID array:
                              Screenshot_20211214_133608.png

                              500MB to /tmp :
                              Screenshot_20211214_133828-500mb.png

                              The original iperf3 test I did from synology I actually copied the results from the server side, so it omitted the retries. Here is the PC to NAS and NAS to PC iperf tests again:

                              PC to NAS
                              NAS# iperf3 -V -s -p 4444
                              PC#  iperf3 -V -c 10.10.1.3 -p 4444
                              
                              Output from PC:
                              iperf 3.7
                              Linux PC 5.11.0-41-generic #45~20.04.1-Ubuntu SMP Wed Nov 10 10:20:10 UTC 2021 x86_64
                              Control connection MSS 1448
                              Time: Tue, 14 Dec 2021 18:45:40 GMT
                              Connecting to host 10.10.1.3, port 4444
                                    Cookie: v3oma5g64ia6jxp36hk4grhdfn2sb3j6xval
                                    TCP MSS: 1448 (default)
                              [  5] local 10.10.0.2 port 35896 connected to 10.10.1.3 port 4444
                              Starting Test: protocol: TCP, 1 streams, 131072 byte blocks, omitting 0 seconds, 10 second test, tos 0
                              [ ID] Interval           Transfer     Bitrate         Retr  Cwnd
                              [  5]   0.00-1.00   sec   114 MBytes   957 Mbits/sec    0    355 KBytes       
                              [  5]   1.00-2.00   sec   112 MBytes   938 Mbits/sec    0    355 KBytes       
                              [  5]   2.00-3.00   sec   113 MBytes   946 Mbits/sec    0    373 KBytes       
                              [  5]   3.00-4.00   sec   112 MBytes   939 Mbits/sec    0    373 KBytes       
                              [  5]   4.00-5.00   sec   112 MBytes   939 Mbits/sec    0    373 KBytes       
                              [  5]   5.00-6.00   sec   112 MBytes   942 Mbits/sec    0    393 KBytes       
                              [  5]   6.00-7.00   sec   113 MBytes   947 Mbits/sec    0    393 KBytes       
                              [  5]   7.00-8.00   sec   112 MBytes   940 Mbits/sec    0    410 KBytes       
                              [  5]   8.00-9.00   sec   112 MBytes   941 Mbits/sec    0    410 KBytes       
                              [  5]   9.00-10.00  sec   112 MBytes   941 Mbits/sec    0    410 KBytes       
                              - - - - - - - - - - - - - - - - - - - - - - - - -
                              Test Complete. Summary Results:
                              [ ID] Interval           Transfer     Bitrate         Retr
                              [  5]   0.00-10.00  sec  1.10 GBytes   943 Mbits/sec    0             sender
                              [  5]   0.00-10.00  sec  1.10 GBytes   941 Mbits/sec                  receiver
                              CPU Utilization: local/sender 1.5% (0.0%u/1.5%s), remote/receiver 18.7% (0.8%u/17.8%s)
                              snd_tcp_congestion cubic
                              rcv_tcp_congestion cubic
                              
                              iperf Done.
                              
                              NAS to PC
                              PC#  iperf3 -V -s -p 4444
                              NAS# iperf3 -V -c 10.10.0.2 -p 4444
                              
                              Output from NAS: 
                              iperf 3.6
                              Linux NAS 4.4.180+ #42218 SMP Mon Oct 18 19:16:01 CST 2021 aarch64
                              Control connection MSS 1448
                              Time: Tue, 14 Dec 2021 18:46:41 GMT
                              Connecting to host 10.10.0.2, port 4444
                                    Cookie: 5cn3v22hqr5wpyglpotmt2g63zf7kfxyntov
                                    TCP MSS: 1448 (default)
                              [  5] local 10.10.1.3 port 41532 connected to 10.10.0.2 port 4444
                              Starting Test: protocol: TCP, 1 streams, 131072 byte blocks, omitting 0 seconds, 10 second test, tos 0
                              [ ID] Interval           Transfer     Bitrate         Retr  Cwnd
                              [  5]   0.00-1.00   sec   114 MBytes   957 Mbits/sec    0    375 KBytes       
                              [  5]   1.00-2.00   sec   111 MBytes   935 Mbits/sec    0    375 KBytes       
                              [  5]   2.00-3.00   sec   112 MBytes   941 Mbits/sec    0    375 KBytes       
                              [  5]   3.00-4.00   sec   112 MBytes   941 Mbits/sec    0    375 KBytes       
                              [  5]   4.00-5.00   sec   111 MBytes   934 Mbits/sec    0    375 KBytes       
                              [  5]   5.00-6.00   sec   112 MBytes   943 Mbits/sec    0    375 KBytes       
                              [  5]   6.00-7.00   sec   111 MBytes   935 Mbits/sec    0    375 KBytes       
                              [  5]   7.00-8.00   sec   112 MBytes   941 Mbits/sec    0    375 KBytes       
                              [  5]   8.00-9.00   sec   112 MBytes   941 Mbits/sec    0    375 KBytes       
                              [  5]   9.00-10.00  sec   112 MBytes   940 Mbits/sec   11    314 KBytes       
                              - - - - - - - - - - - - - - - - - - - - - - - - -
                              Test Complete. Summary Results:
                              [ ID] Interval           Transfer     Bitrate         Retr
                              [  5]   0.00-10.00  sec  1.10 GBytes   941 Mbits/sec   11             sender
                              [  5]   0.00-10.03  sec  1.09 GBytes   936 Mbits/sec                  receiver
                              CPU Utilization: local/sender 7.1% (0.0%u/7.1%s), remote/receiver 16.2% (2.0%u/14.3%s)
                              snd_tcp_congestion cubic
                              rcv_tcp_congestion cubic
                              
                              iperf Done.
                              

                              NAS to PC did have a few retires, nothing more than 20 per interval. Done a second time I get only 10-20 retires over all the intervals.

                              I am at a loss for what is the bottleneck here. I get the same speeds to the synology onboard flash as the RAID array? but its not full gigabit, yet iperf shows the network is not the problem?

                              It seems if I use any actual application that transfers data (ssh, rsync, smb) then I don't see full gigabit...

                              keyserK 1 Reply Last reply Reply Quote 0
                              • keyserK
                                keyser Rebel Alliance @erasedhammer
                                last edited by

                                @erasedhammer said in Iperf testing, same subnet, inconsistent speeds.:

                                Just to add another data point. I tried scp a file of random junk, both 500MB and 1GB to both the synology flash disk and the RAID array and got the same speeds:

                                1GB scp to RAID array:
                                Screenshot_20211214_133608.png

                                500MB to /tmp :
                                Screenshot_20211214_133828-500mb.png

                                The original iperf3 test I did from synology I actually copied the results from the server side, so it omitted the retries. Here is the PC to NAS and NAS to PC iperf tests again:

                                PC to NAS
                                NAS# iperf3 -V -s -p 4444
                                PC#  iperf3 -V -c 10.10.1.3 -p 4444
                                
                                Output from PC:
                                iperf 3.7
                                Linux PC 5.11.0-41-generic #45~20.04.1-Ubuntu SMP Wed Nov 10 10:20:10 UTC 2021 x86_64
                                Control connection MSS 1448
                                Time: Tue, 14 Dec 2021 18:45:40 GMT
                                Connecting to host 10.10.1.3, port 4444
                                      Cookie: v3oma5g64ia6jxp36hk4grhdfn2sb3j6xval
                                      TCP MSS: 1448 (default)
                                [  5] local 10.10.0.2 port 35896 connected to 10.10.1.3 port 4444
                                Starting Test: protocol: TCP, 1 streams, 131072 byte blocks, omitting 0 seconds, 10 second test, tos 0
                                [ ID] Interval           Transfer     Bitrate         Retr  Cwnd
                                [  5]   0.00-1.00   sec   114 MBytes   957 Mbits/sec    0    355 KBytes       
                                [  5]   1.00-2.00   sec   112 MBytes   938 Mbits/sec    0    355 KBytes       
                                [  5]   2.00-3.00   sec   113 MBytes   946 Mbits/sec    0    373 KBytes       
                                [  5]   3.00-4.00   sec   112 MBytes   939 Mbits/sec    0    373 KBytes       
                                [  5]   4.00-5.00   sec   112 MBytes   939 Mbits/sec    0    373 KBytes       
                                [  5]   5.00-6.00   sec   112 MBytes   942 Mbits/sec    0    393 KBytes       
                                [  5]   6.00-7.00   sec   113 MBytes   947 Mbits/sec    0    393 KBytes       
                                [  5]   7.00-8.00   sec   112 MBytes   940 Mbits/sec    0    410 KBytes       
                                [  5]   8.00-9.00   sec   112 MBytes   941 Mbits/sec    0    410 KBytes       
                                [  5]   9.00-10.00  sec   112 MBytes   941 Mbits/sec    0    410 KBytes       
                                - - - - - - - - - - - - - - - - - - - - - - - - -
                                Test Complete. Summary Results:
                                [ ID] Interval           Transfer     Bitrate         Retr
                                [  5]   0.00-10.00  sec  1.10 GBytes   943 Mbits/sec    0             sender
                                [  5]   0.00-10.00  sec  1.10 GBytes   941 Mbits/sec                  receiver
                                CPU Utilization: local/sender 1.5% (0.0%u/1.5%s), remote/receiver 18.7% (0.8%u/17.8%s)
                                snd_tcp_congestion cubic
                                rcv_tcp_congestion cubic
                                
                                iperf Done.
                                
                                NAS to PC
                                PC#  iperf3 -V -s -p 4444
                                NAS# iperf3 -V -c 10.10.0.2 -p 4444
                                
                                Output from NAS: 
                                iperf 3.6
                                Linux NAS 4.4.180+ #42218 SMP Mon Oct 18 19:16:01 CST 2021 aarch64
                                Control connection MSS 1448
                                Time: Tue, 14 Dec 2021 18:46:41 GMT
                                Connecting to host 10.10.0.2, port 4444
                                      Cookie: 5cn3v22hqr5wpyglpotmt2g63zf7kfxyntov
                                      TCP MSS: 1448 (default)
                                [  5] local 10.10.1.3 port 41532 connected to 10.10.0.2 port 4444
                                Starting Test: protocol: TCP, 1 streams, 131072 byte blocks, omitting 0 seconds, 10 second test, tos 0
                                [ ID] Interval           Transfer     Bitrate         Retr  Cwnd
                                [  5]   0.00-1.00   sec   114 MBytes   957 Mbits/sec    0    375 KBytes       
                                [  5]   1.00-2.00   sec   111 MBytes   935 Mbits/sec    0    375 KBytes       
                                [  5]   2.00-3.00   sec   112 MBytes   941 Mbits/sec    0    375 KBytes       
                                [  5]   3.00-4.00   sec   112 MBytes   941 Mbits/sec    0    375 KBytes       
                                [  5]   4.00-5.00   sec   111 MBytes   934 Mbits/sec    0    375 KBytes       
                                [  5]   5.00-6.00   sec   112 MBytes   943 Mbits/sec    0    375 KBytes       
                                [  5]   6.00-7.00   sec   111 MBytes   935 Mbits/sec    0    375 KBytes       
                                [  5]   7.00-8.00   sec   112 MBytes   941 Mbits/sec    0    375 KBytes       
                                [  5]   8.00-9.00   sec   112 MBytes   941 Mbits/sec    0    375 KBytes       
                                [  5]   9.00-10.00  sec   112 MBytes   940 Mbits/sec   11    314 KBytes       
                                - - - - - - - - - - - - - - - - - - - - - - - - -
                                Test Complete. Summary Results:
                                [ ID] Interval           Transfer     Bitrate         Retr
                                [  5]   0.00-10.00  sec  1.10 GBytes   941 Mbits/sec   11             sender
                                [  5]   0.00-10.03  sec  1.09 GBytes   936 Mbits/sec                  receiver
                                CPU Utilization: local/sender 7.1% (0.0%u/7.1%s), remote/receiver 16.2% (2.0%u/14.3%s)
                                snd_tcp_congestion cubic
                                rcv_tcp_congestion cubic
                                
                                iperf Done.
                                

                                NAS to PC did have a few retires, nothing more than 20 per interval. Done a second time I get only 10-20 retires over all the intervals.

                                I am at a loss for what is the bottleneck here. I get the same speeds to the synology onboard flash as the RAID array? but its not full gigabit, yet iperf shows the network is not the problem?

                                It seems if I use any actual application that transfers data (ssh, rsync, smb) then I don't see full gigabit...

                                Please read My former replies. Your issue is the SFP+ tranciever.

                                Love the no fuss of using the official appliances :-)

                                E 1 Reply Last reply Reply Quote 0
                                • AndyRHA
                                  AndyRH
                                  last edited by

                                  2 more questions:

                                  1. Are copper SFP+ supported now?
                                  2. As suggested, there is a chance the SFP+ is at fault. Can you move from IX1 to a switch port for testing? If there is a free port it is not too hard to add/remove VLANs from the ports.

                                  o||||o
                                  7100-1u

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

                                    @andyrh said in Iperf testing, same subnet, inconsistent speeds.:

                                    Are copper SFP+ supported now?

                                    There's no reason why not in an ixl port, using the x710 expansion card. That's what the diagram shows but the output further back is from ix1 which does not support it.

                                    I believe we have seen one or two modules that worked by chance but I would not expect it to. If that's what you have there I would definitely look at moving to some other connection type.

                                    Steve

                                    E 1 Reply Last reply Reply Quote 0
                                    • E
                                      erasedhammer @stephenw10
                                      last edited by

                                      @stephenw10

                                      Is the netgate appliance the one that does not support RJ45 SFP+ modules or the Intel network adapter they used?

                                      I'll admit I have had plenty of troubles with RJ45 SFP+ modules in the past, most of the time running pure fiber then using a proper media converter solved my issues historically. Unfortunately I don't have any spare ports on pfsense right now, so I'll try out a media converter.

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

                                        The on-board SFP+ ports in the 7100 (ix0 and ix1) do not support RJ-45 modules.
                                        https://docs.netgate.com/pfsense/en/latest/solutions/xg-7100-1u/io-ports.html#sfp-ethernet-ports

                                        The SoC cannot read the the module data. If it works it's by chance only and should not be relied upon.

                                        Steve

                                        E 1 Reply Last reply Reply Quote 0
                                        • E
                                          erasedhammer @stephenw10
                                          last edited by erasedhammer

                                          @stephenw10

                                          Sounds good, I have some more fiber cables on order. I will be switching to SFP+ port -> LC SFP+ module -> Om3 fiber -> media converter -> RJ45. The Fiber SFP+ modules I have actually are on the supported list, so should be a painless switch.
                                          Since I will need the SFP+ port, media converter sounds like my only option.

                                          Will report back with results in a few days with hopefully good news.

                                          1 Reply Last reply Reply Quote 1
                                          • E
                                            erasedhammer @keyser
                                            last edited by

                                            @keyser

                                            Just got the media converter and new fiber in. No change to transfer speeds. Still sitting right at 50MB/s

                                            ix1: flags=8943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST> metric 0 mtu 1500
                                            	description: Admin
                                            	options=e138bb<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,JUMBO_MTU,VLAN_HWCSUM,WOL_UCAST,WOL_MCAST,WOL_MAGIC,VLAN_HWFILTER,RXCSUM_IPV6,TXCSUM_IPV6>
                                            	capabilities=f53fbb<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,JUMBO_MTU,VLAN_HWCSUM,TSO4,TSO6,LRO,WOL_UCAST,WOL_MCAST,WOL_MAGIC,VLAN_HWFILTER,VLAN_HWTSO,NETMAP,RXCSUM_IPV6,TXCSUM_IPV6>
                                            	ether 00:08:a2:0f:13:b1
                                            	inet6 fe80::208:a2ff:fe0f:13b1%ix1 prefixlen 64 scopeid 0x2
                                            	inet 10.10.0.1 netmask 0xfffffff0 broadcast 10.10.0.15
                                            	media: Ethernet autoselect (1000baseSX <full-duplex,rxpause,txpause>)
                                            	status: active
                                            	supported media:
                                            		media autoselect
                                            		media 1000baseSX
                                            	nd6 options=21<PERFORMNUD,AUTO_LINKLOCAL>
                                            	plugged: SFP/SFP+/SFP28 1000BASE-SX (LC)
                                            	vendor: INTEL PN: SFP-GE-SX SN: INGE1K70662 DATE: 2020-07-18
                                            	module temperature: 31.35 C Voltage: 3.31 Volts
                                            	RX: 0.40 mW (-3.97 dBm) TX: 0.23 mW (-6.33 dBm)
                                            
                                            	SFF8472 DUMP (0xA0 0..127 range):
                                            	03 04 07 00 00 00 01 20 40 0C 00 03 0D 00 00 00
                                            	37 1B 00 00 49 4E 54 45 4C 20 20 20 20 20 20 20
                                            	20 20 20 20 00 00 00 00 53 46 50 2D 47 45 2D 53
                                            	58 20 20 20 20 20 20 20 41 20 20 20 03 52 00 09
                                            	00 1A 14 14 49 4E 47 45 31 4B 37 30 36 36 32 20
                                            	20 20 20 20 32 30 30 37 31 38 20 20 68 B0 01 11
                                            	00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
                                            	00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
                                            

                                            Transfer 1GB file:
                                            Screenshot_20211217_215428.png

                                            What is the throughput of the marvel switch? If all ports are populated, does it loose throughput?
                                            The RJ45 SFP+ transceiver was not the issue.

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