Public bug reported: Hi,
I'm running into an issue where the RTL8111/8168/8411 gigabit ethernet adapter is stuck at 700mbps transfer speeds, but will be able to hit 940-950mbps speeds as soon as the CPU is stressed to 100%. It is the same as this bug posted several years ago: https://superuser.com/questions/1428360/poor-network-throughput-but- double-under-high-cpu-load/1749982 Exact instructions to reproduce this bug: on mini PC run: iperf3 -s -B <interface IP> on client run: iperf3 -R -c miniPC.lan λ iperf3 -R -c 192.168.1.103 -t 600 # download Connecting to host 192.168.1.103, port 5201 Reverse mode, remote host 192.168.1.103 is sending [ 5] local 192.168.1.127 port 34124 connected to 192.168.1.103 port 5201 [ ID] Interval Transfer Bitrate [ 5] 0.00-1.00 sec 82.6 MBytes 693 Mbits/sec [ 5] 1.00-2.00 sec 83.8 MBytes 703 Mbits/sec [ 5] 2.00-3.00 sec 83.3 MBytes 699 Mbits/sec [ 5] 3.00-4.00 sec 82.8 MBytes 694 Mbits/sec [ 5] 4.00-5.00 sec 82.8 MBytes 694 Mbits/sec [ 5] 5.00-6.00 sec 83.2 MBytes 698 Mbits/sec [ 5] 6.00-7.00 sec 83.3 MBytes 699 Mbits/sec [ 5] 7.00-8.00 sec 83.1 MBytes 697 Mbits/sec [ 5] 8.00-9.00 sec 82.5 MBytes 692 Mbits/sec [ 5] 9.00-10.00 sec 82.6 MBytes 693 Mbits/sec [ 5] 10.00-11.00 sec 82.7 MBytes 693 Mbits/sec [ 5] 11.00-12.00 sec 83.4 MBytes 699 Mbits/sec [ 5] 12.00-13.00 sec 83.1 MBytes 697 Mbits/sec [ 5] 13.00-14.00 sec 82.8 MBytes 695 Mbits/sec [ 5] 14.00-15.00 sec 82.7 MBytes 694 Mbits/sec [ 5] 15.00-16.00 sec 83.1 MBytes 697 Mbits/sec [ 5] 16.00-17.00 sec 83.8 MBytes 703 Mbits/sec [ 5] 17.00-18.00 sec 83.2 MBytes 698 Mbits/sec [ 5] 18.00-19.00 sec 82.5 MBytes 692 Mbits/sec [ 5] 19.00-19.09 sec 7.42 MBytes 694 Mbits/sec - - - - - - - - - - - - - - - - - - - - - - - - - [ ID] Interval Transfer Bitrate [ 5] 0.00-19.09 sec 0.00 Bytes 0.00 bits/sec sender [ 5] 0.00-19.09 sec 1.55 GBytes 696 Mbits/sec receiver iperf3: interrupt - the client has terminated under stress test I ran s-tui on the mini PC, enabled the stress test option, and saw all cores boosted to 2.90 GHz (max turbo on an Intel N5095). The ethernet speeds immediately jumped to gigabit wire speeds: λ iperf3 -R -c 192.168.1.103 -t 600 # download Connecting to host 192.168.1.103, port 5201 Reverse mode, remote host 192.168.1.103 is sending [ 5] local 192.168.1.127 port 34144 connected to 192.168.1.103 port 5201 [ ID] Interval Transfer Bitrate [ 5] 0.00-1.00 sec 113 MBytes 946 Mbits/sec [ 5] 1.00-2.00 sec 113 MBytes 949 Mbits/sec [ 5] 2.00-3.00 sec 113 MBytes 949 Mbits/sec [ 5] 3.00-4.00 sec 113 MBytes 949 Mbits/sec [ 5] 4.00-5.00 sec 113 MBytes 949 Mbits/sec [ 5] 5.00-6.00 sec 113 MBytes 949 Mbits/sec [ 5] 6.00-6.27 sec 31.0 MBytes 949 Mbits/sec - - - - - - - - - - - - - - - - - - - - - - - - - [ ID] Interval Transfer Bitrate [ 5] 0.00-6.27 sec 0.00 Bytes 0.00 bits/sec sender [ 5] 0.00-6.27 sec 709 MBytes 949 Mbits/sec receiver iperf3: interrupt - the client has terminated I have tried both the r8169 and r8168 drivers on both 22.04 (kernel 5.15 and 5.19) and also on 22.10 (only kernel 5.19 tested). This issue remains on all combinations tested. I verified the driver being used by running the following: root@snuminipc:~# ethtool -i enp2s0 driver: r8169 version: 5.19.0-23-generic firmware-version: rtl8168h-2_0.0.2 02/26/15 expansion-rom-version: bus-info: 0000:02:00.0 supports-statistics: yes supports-test: no supports-eeprom-access: no supports-register-dump: yes supports-priv-flags: no ProblemType: Bug DistroRelease: Ubuntu 22.10 Package: linux-image-5.19.0-23-generic 5.19.0-23.24 ProcVersionSignature: Ubuntu 5.19.0-23.24-generic 5.19.7 Uname: Linux 5.19.0-23-generic x86_64 AlsaVersion: Advanced Linux Sound Architecture Driver Version k5.19.0-23-generic. AplayDevices: Error: [Errno 2] No such file or directory: 'aplay' ApportVersion: 2.23.1-0ubuntu3 Architecture: amd64 ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord' AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/by-path', '/dev/snd/controlC0', '/dev/snd/hwC0D2', '/dev/snd/hwC0D0', '/dev/snd/pcmC0D12p', '/dev/snd/pcmC0D11p', '/dev/snd/pcmC0D10p', '/dev/snd/pcmC0D9p', '/dev/snd/pcmC0D8p', '/dev/snd/pcmC0D7p', '/dev/snd/pcmC0D3p', '/dev/snd/pcmC0D0c', '/dev/snd/pcmC0D0p', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: CRDA: N/A Card0.Amixer.info: Error: [Errno 2] No such file or directory: 'amixer' Card0.Amixer.values: Error: [Errno 2] No such file or directory: 'amixer' CasperMD5CheckResult: pass Date: Fri Oct 28 14:38:41 2022 InstallationDate: Installed on 2022-10-16 (11 days ago) InstallationMedia: Ubuntu-Server 22.04.1 LTS "Jammy Jellyfish" - Release amd64 (20220809) IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig' Lsusb: Bus 002 Device 002: ID 174c:1153 ASMedia Technology Inc. ASM1153 SATA 3Gb/s bridge Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 003: ID 8087:0a2a Intel Corp. Bluetooth wireless interface Bus 001 Device 002: ID 0bda:0129 Realtek Semiconductor Corp. RTS5129 Card Reader Controller Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub MachineType: GEEKOM MiniAir 11 ProcEnviron: TERM=xterm-256color PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.19.0-23-generic root=/dev/mapper/ubuntu--vg-ubuntu--lv ro RelatedPackageVersions: linux-restricted-modules-5.19.0-23-generic N/A linux-backports-modules-5.19.0-23-generic N/A linux-firmware 20220923.gitf09bebf3-0ubuntu1 RfKill: Error: [Errno 2] No such file or directory: 'rfkill' SourcePackage: linux UpgradeStatus: Upgraded to kinetic on 2022-10-28 (0 days ago) dmi.bios.date: 06/17/2022 dmi.bios.release: 5.19 dmi.bios.vendor: American Megatrends International, LLC. dmi.bios.version: 2.06 dmi.board.asset.tag: Default string dmi.board.name: MiniAir 11 dmi.board.vendor: GEEKOM dmi.board.version: Default string dmi.chassis.asset.tag: Default string dmi.chassis.type: 23 dmi.chassis.vendor: Default string dmi.chassis.version: Default string dmi.ec.firmware.release: 2.10 dmi.modalias: dmi:bvnAmericanMegatrendsInternational,LLC.:bvr2.06:bd06/17/2022:br5.19:efr2.10:svnGEEKOM:pnMiniAir11:pvrDefaultstring:rvnGEEKOM:rnMiniAir11:rvrDefaultstring:cvnDefaultstring:ct23:cvrDefaultstring:skuDefaultstring: dmi.product.family: Default string dmi.product.name: MiniAir 11 dmi.product.sku: Default string dmi.product.version: Default string dmi.sys.vendor: GEEKOM ** Affects: linux (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug kinetic uec-images -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1995108 Title: RTL8111/8168/8411 throughput/power/CPU bug Status in linux package in Ubuntu: New Bug description: Hi, I'm running into an issue where the RTL8111/8168/8411 gigabit ethernet adapter is stuck at 700mbps transfer speeds, but will be able to hit 940-950mbps speeds as soon as the CPU is stressed to 100%. It is the same as this bug posted several years ago: https://superuser.com/questions/1428360/poor-network-throughput-but- double-under-high-cpu-load/1749982 Exact instructions to reproduce this bug: on mini PC run: iperf3 -s -B <interface IP> on client run: iperf3 -R -c miniPC.lan λ iperf3 -R -c 192.168.1.103 -t 600 # download Connecting to host 192.168.1.103, port 5201 Reverse mode, remote host 192.168.1.103 is sending [ 5] local 192.168.1.127 port 34124 connected to 192.168.1.103 port 5201 [ ID] Interval Transfer Bitrate [ 5] 0.00-1.00 sec 82.6 MBytes 693 Mbits/sec [ 5] 1.00-2.00 sec 83.8 MBytes 703 Mbits/sec [ 5] 2.00-3.00 sec 83.3 MBytes 699 Mbits/sec [ 5] 3.00-4.00 sec 82.8 MBytes 694 Mbits/sec [ 5] 4.00-5.00 sec 82.8 MBytes 694 Mbits/sec [ 5] 5.00-6.00 sec 83.2 MBytes 698 Mbits/sec [ 5] 6.00-7.00 sec 83.3 MBytes 699 Mbits/sec [ 5] 7.00-8.00 sec 83.1 MBytes 697 Mbits/sec [ 5] 8.00-9.00 sec 82.5 MBytes 692 Mbits/sec [ 5] 9.00-10.00 sec 82.6 MBytes 693 Mbits/sec [ 5] 10.00-11.00 sec 82.7 MBytes 693 Mbits/sec [ 5] 11.00-12.00 sec 83.4 MBytes 699 Mbits/sec [ 5] 12.00-13.00 sec 83.1 MBytes 697 Mbits/sec [ 5] 13.00-14.00 sec 82.8 MBytes 695 Mbits/sec [ 5] 14.00-15.00 sec 82.7 MBytes 694 Mbits/sec [ 5] 15.00-16.00 sec 83.1 MBytes 697 Mbits/sec [ 5] 16.00-17.00 sec 83.8 MBytes 703 Mbits/sec [ 5] 17.00-18.00 sec 83.2 MBytes 698 Mbits/sec [ 5] 18.00-19.00 sec 82.5 MBytes 692 Mbits/sec [ 5] 19.00-19.09 sec 7.42 MBytes 694 Mbits/sec - - - - - - - - - - - - - - - - - - - - - - - - - [ ID] Interval Transfer Bitrate [ 5] 0.00-19.09 sec 0.00 Bytes 0.00 bits/sec sender [ 5] 0.00-19.09 sec 1.55 GBytes 696 Mbits/sec receiver iperf3: interrupt - the client has terminated under stress test I ran s-tui on the mini PC, enabled the stress test option, and saw all cores boosted to 2.90 GHz (max turbo on an Intel N5095). The ethernet speeds immediately jumped to gigabit wire speeds: λ iperf3 -R -c 192.168.1.103 -t 600 # download Connecting to host 192.168.1.103, port 5201 Reverse mode, remote host 192.168.1.103 is sending [ 5] local 192.168.1.127 port 34144 connected to 192.168.1.103 port 5201 [ ID] Interval Transfer Bitrate [ 5] 0.00-1.00 sec 113 MBytes 946 Mbits/sec [ 5] 1.00-2.00 sec 113 MBytes 949 Mbits/sec [ 5] 2.00-3.00 sec 113 MBytes 949 Mbits/sec [ 5] 3.00-4.00 sec 113 MBytes 949 Mbits/sec [ 5] 4.00-5.00 sec 113 MBytes 949 Mbits/sec [ 5] 5.00-6.00 sec 113 MBytes 949 Mbits/sec [ 5] 6.00-6.27 sec 31.0 MBytes 949 Mbits/sec - - - - - - - - - - - - - - - - - - - - - - - - - [ ID] Interval Transfer Bitrate [ 5] 0.00-6.27 sec 0.00 Bytes 0.00 bits/sec sender [ 5] 0.00-6.27 sec 709 MBytes 949 Mbits/sec receiver iperf3: interrupt - the client has terminated I have tried both the r8169 and r8168 drivers on both 22.04 (kernel 5.15 and 5.19) and also on 22.10 (only kernel 5.19 tested). This issue remains on all combinations tested. I verified the driver being used by running the following: root@snuminipc:~# ethtool -i enp2s0 driver: r8169 version: 5.19.0-23-generic firmware-version: rtl8168h-2_0.0.2 02/26/15 expansion-rom-version: bus-info: 0000:02:00.0 supports-statistics: yes supports-test: no supports-eeprom-access: no supports-register-dump: yes supports-priv-flags: no ProblemType: Bug DistroRelease: Ubuntu 22.10 Package: linux-image-5.19.0-23-generic 5.19.0-23.24 ProcVersionSignature: Ubuntu 5.19.0-23.24-generic 5.19.7 Uname: Linux 5.19.0-23-generic x86_64 AlsaVersion: Advanced Linux Sound Architecture Driver Version k5.19.0-23-generic. AplayDevices: Error: [Errno 2] No such file or directory: 'aplay' ApportVersion: 2.23.1-0ubuntu3 Architecture: amd64 ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord' AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/by-path', '/dev/snd/controlC0', '/dev/snd/hwC0D2', '/dev/snd/hwC0D0', '/dev/snd/pcmC0D12p', '/dev/snd/pcmC0D11p', '/dev/snd/pcmC0D10p', '/dev/snd/pcmC0D9p', '/dev/snd/pcmC0D8p', '/dev/snd/pcmC0D7p', '/dev/snd/pcmC0D3p', '/dev/snd/pcmC0D0c', '/dev/snd/pcmC0D0p', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: CRDA: N/A Card0.Amixer.info: Error: [Errno 2] No such file or directory: 'amixer' Card0.Amixer.values: Error: [Errno 2] No such file or directory: 'amixer' CasperMD5CheckResult: pass Date: Fri Oct 28 14:38:41 2022 InstallationDate: Installed on 2022-10-16 (11 days ago) InstallationMedia: Ubuntu-Server 22.04.1 LTS "Jammy Jellyfish" - Release amd64 (20220809) IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig' Lsusb: Bus 002 Device 002: ID 174c:1153 ASMedia Technology Inc. ASM1153 SATA 3Gb/s bridge Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 003: ID 8087:0a2a Intel Corp. Bluetooth wireless interface Bus 001 Device 002: ID 0bda:0129 Realtek Semiconductor Corp. RTS5129 Card Reader Controller Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub MachineType: GEEKOM MiniAir 11 ProcEnviron: TERM=xterm-256color PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.19.0-23-generic root=/dev/mapper/ubuntu--vg-ubuntu--lv ro RelatedPackageVersions: linux-restricted-modules-5.19.0-23-generic N/A linux-backports-modules-5.19.0-23-generic N/A linux-firmware 20220923.gitf09bebf3-0ubuntu1 RfKill: Error: [Errno 2] No such file or directory: 'rfkill' SourcePackage: linux UpgradeStatus: Upgraded to kinetic on 2022-10-28 (0 days ago) dmi.bios.date: 06/17/2022 dmi.bios.release: 5.19 dmi.bios.vendor: American Megatrends International, LLC. dmi.bios.version: 2.06 dmi.board.asset.tag: Default string dmi.board.name: MiniAir 11 dmi.board.vendor: GEEKOM dmi.board.version: Default string dmi.chassis.asset.tag: Default string dmi.chassis.type: 23 dmi.chassis.vendor: Default string dmi.chassis.version: Default string dmi.ec.firmware.release: 2.10 dmi.modalias: dmi:bvnAmericanMegatrendsInternational,LLC.:bvr2.06:bd06/17/2022:br5.19:efr2.10:svnGEEKOM:pnMiniAir11:pvrDefaultstring:rvnGEEKOM:rnMiniAir11:rvrDefaultstring:cvnDefaultstring:ct23:cvrDefaultstring:skuDefaultstring: dmi.product.family: Default string dmi.product.name: MiniAir 11 dmi.product.sku: Default string dmi.product.version: Default string dmi.sys.vendor: GEEKOM To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1995108/+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
