@KaiHeng, with aspm 1.2 enabled, can't observe the issue on JSL machine. Could you narrow down to one Realtek's model?
** Attachment added: "iperf3_log_20210907" https://bugs.launchpad.net/bugs/1942830/+attachment/5523407/+files/iperf3_log_20210907 ** Attachment added: "dmesg_20210907" https://bugs.launchpad.net/bugs/1942830/+attachment/5523408/+files/dmesg_20210907 ** Attachment added: "lspci_s_01000_vvv" https://bugs.launchpad.net/bugs/1942830/+attachment/5523409/+files/lspci_s_01000_vvv -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-oem-5.14 in Ubuntu. https://bugs.launchpad.net/bugs/1942830 Title: Fix sluggish r8169 by disaling ASPM L1.2 Status in HWE Next: New Status in linux package in Ubuntu: Confirmed Status in linux-oem-5.13 package in Ubuntu: Invalid Status in linux-oem-5.14 package in Ubuntu: Invalid Status in linux source package in Focal: Invalid Status in linux-oem-5.13 source package in Focal: Confirmed Status in linux-oem-5.14 source package in Focal: Confirmed Bug description: [Impact] Realtek r8169 has abysmal network speed. [Fix] Disable ASPM L1.2 because the device takes a long time to exit from L1.2. [Test] Use `iperf` to test network speed. When ASPM L1.2 gets disabled, TX and RX and reach ~700Mbps and ~900Mbps respectively. [Where problems could occur] Disabling ASPM L1.2 can slightly increase power consumption. The CPU package C-State seems to be unaffected so the increase is rather minor. To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/1942830/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
