Hi, I have been experiencing very poor network performance since Kernel 4.19 and I'm confident it's related to the r8169 driver.
I have no issue with kernel versions 4.18 and prior. I am experiencing this issue in kernels 4.19 and 4.20 (currently running/testing with 4.20.4 & 4.19.18). If someone could guide me in the right direction, I'm happy to help troubleshoot this issue. Note that I have been keeping an eye on one issue related to loading of the PHY driver, however, my symptoms differ in that I still have a network connection. I have attempted to reload the driver on a running system, but this does not improve the situation. Using the proprietary r8168 driver returns my device to proper working order. lshw shows: description: Ethernet interface product: RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller vendor: Realtek Semiconductor Co., Ltd. physical id: 0 bus info: pci@0000:03:00.0 logical name: enp3s0 version: 0c serial: size: 1Gbit/s capacity: 1Gbit/s width: 64 bits clock: 33MHz capabilities: pm msi pciexpress msix vpd bus_master cap_list ethernet physical tp aui bnc mii fibre 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation configuration: autonegotiation=on broadcast=yes driver=r8169 duplex=full firmware=rtl8168g-2_0.0.1 02/06/13 ip=192.168.1.25 latency=0 link=yes multicast=yes port=MII speed=1Gbit/s resources: irq:19 ioport:d000(size=256) memory:f7b00000-f7b00fff memory:f2100000-f2103fff Kind Regards, Peter.