• [6.10] Realtek RTL8125 2.5G performance degraded after upgrade


    zoggy
    • Minor

    My main computer + unraid are on a 2.5G switch and both have 2.5GbE ports.

    The unraid box has a realtek RTL8125 2.5GbE port on the motherboard, testing I would get full speed on 6.9.2 but after upgrading to 6.10.0 (and tested .1 + .2) the performance dropped.

     

    iperf3 udp test:

    unraid:
    iperf3 -s -p 5003
    
    from windows machine, udp w/8 connections for 10 seconds:
    X:\iperf-3.1.3-win64> ./iperf3.exe -c 192.168.0.11 -p 5003 -P8 -t10 -i1 -b 3G -u
    

     

    on 6.9.2  - 286 MBytes (2.40 Gbits/sec)

    on 6.10.1 - 179 MBytes (1.50 Gbits/sec)

     

     

    ethtool shows:

    Quote

    # ethtool eth0
    Settings for eth0:
        Supported ports: [ TP     MII ]
        Supported link modes:   10baseT/Half 10baseT/Full
                                100baseT/Half 100baseT/Full
                                1000baseT/Full
                                2500baseT/Full
        Supported pause frame use: Symmetric Receive-only
        Supports auto-negotiation: Yes
        Supported FEC modes: Not reported
        Advertised link modes:  10baseT/Half 10baseT/Full
                                100baseT/Half 100baseT/Full
                                1000baseT/Full
                                2500baseT/Full
        Advertised pause frame use: Symmetric Receive-only
        Advertised auto-negotiation: Yes
        Advertised FEC modes: Not reported
        Link partner advertised link modes:  10baseT/Half 10baseT/Full
                                             100baseT/Half 100baseT/Full
                                             1000baseT/Half 1000baseT/Full
                                             2500baseT/Full
        Link partner advertised pause frame use: Symmetric Receive-only
        Link partner advertised auto-negotiation: Yes
        Link partner advertised FEC modes: Not reported
        Speed: 2500Mb/s
        Duplex: Full
        Auto-negotiation: on
        master-slave cfg: preferred slave
        master-slave status: slave
        Port: Twisted Pair
        PHYAD: 0
        Transceiver: external
        MDI-X: Unknown
        Supports Wake-on: pumbg
        Wake-on: d
        Link detected: yes

     

     

    can see the same driver loaded on 6.10.2 vs 6.9.2:

    Quote

    6.10.2:

     

    # ethtool -i eth0
    driver: r8169
    version: 5.15.43-Unraid
    firmware-version: rtl8125a-3_0.0.1 08/24/19
    expansion-rom-version:
    bus-info: 0000:04:00.0
    supports-statistics: yes
    supports-test: no
    supports-eeprom-access: no
    supports-register-dump: yes
    supports-priv-flags: no

     

     

    6.9.2:

     

    # ethtool -i eth0
    driver: r8169
    version: 5.10.28-Unraid
    firmware-version: rtl8125a-3_0.0.1 08/24/19
    expansion-rom-version:
    bus-info: 0000:04:00.0
    supports-statistics: yes
    supports-test: no
    supports-eeprom-access: no
    supports-register-dump: yes
    supports-priv-flags: no

     

     

    lspci shows:

    Quote

    04:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8125 2.5GbE Controller
        Subsystem: ASUSTeK Computer Inc. RTL8125 2.5GbE Controller
        Flags: bus master, fast devsel, latency 0, IRQ 59, IOMMU group 22
        I/O ports at e000 [size=256]
        Memory at fc710000 (64-bit, non-prefetchable) [size=64K]
        Memory at fc720000 (64-bit, non-prefetchable) [size=16K]
        Expansion ROM at fc700000 [disabled] [size=64K]
        Capabilities: [40] Power Management version 3
        Capabilities: [50] MSI: Enable- Count=1/1 Maskable+ 64bit+
        Capabilities: [70] Express Endpoint, MSI 01
        Capabilities: [b0] MSI-X: Enable+ Count=4 Masked-
        Capabilities: [d0] Vital Product Data
        Capabilities: [100] Advanced Error Reporting
        Capabilities: [148] Virtual Channel
        Capabilities: [168] Device Serial Number 01-00-00-00-68-4c-e0-00
        Capabilities: [178] Alternative Routing-ID Interpretation (ARI)
        Capabilities: [188] Single Root I/O Virtualization (SR-IOV)
        Capabilities: [1c8] Transaction Processing Hints
        Capabilities: [254] Latency Tolerance Reporting
        Capabilities: [25c] L1 PM Substates
        Capabilities: [26c] Vendor Specific Information: ID=0002 Rev=4 Len=100 <?>
        Kernel driver in use: r8169
        Kernel modules: r8169

     

     




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