This bug was fixed in the package linux-oem-5.6 - 5.6.0-1020.20
---------------
linux-oem-5.6 (5.6.0-1020.20) focal; urgency=medium
* focal/linux-oem-5.6: 5.6.0-1020.20 -proposed tracker (LP: #1886753)
* Realtek [10ec:c82f] Subsystem [17aa:c02f] Wifi adapter not found
(LP: #1886247)
- SAUCE: rtw88: 8822ce: add support for device ID 0xc82f
* [WD19TB] external DP failed with DRM error message (LP: #1886165)
- drm/i915/tgl: Update TC DP vswing table
- drm/i915/tgl: Implement WA_16011163337
- SAUCE: drm/i915/bios: add intel_bios_hdmi_level_shift()
- drm/i915/tgl: Add HBR and HBR2+ voltage swing table
- drm/i915/dc3co: Avoid full modeset when EXITLINE needs to be changed
- drm/i915/tgl+: Use the correct DP_TP_* register instances in MST encoders
- drm/i915/tgl+: Fix TBT DPLL fractional divider for 38.4MHz ref clock
* ubuntu_aufs_smoke_test failed on Focal OEM 5.6 (LP: #1879308)
- SAUCE: fs: Enable aufs
-- Timo Aaltonen <[email protected]> Wed, 08 Jul 2020
11:44:53 +0300
** Changed in: linux-oem-5.6 (Ubuntu)
Status: Invalid => Fix Released
** Changed in: linux (Ubuntu Groovy)
Status: In Progress => Fix Released
** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2020-11935
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https://bugs.launchpad.net/bugs/1802691
Title:
Slow send speed with Intel I219-V on Ubuntu 18.04.1
Status in HWE Next:
New
Status in linux package in Ubuntu:
Fix Released
Status in linux-oem-5.6 package in Ubuntu:
Fix Released
Status in linux-oem-osp1 package in Ubuntu:
Invalid
Status in linux source package in Bionic:
Fix Released
Status in linux-oem-osp1 source package in Bionic:
Fix Released
Status in linux source package in Eoan:
Fix Released
Status in linux source package in Focal:
Fix Released
Status in linux-oem-5.6 source package in Focal:
Fix Released
Status in linux source package in Groovy:
Fix Released
Bug description:
[Impact]
The throughput measured by iperf3 is around 70% of 1Gbps (Intel I219-LM
[8086:15b7])
I219 is a rather cheap NIC and it impacts its throughput if TSO(TCP
segmentation offload) is enabled.
[Fix]
Disable TSO on NIC and move this task back to CPU fixes this issue.
The impact of CPU loading is little to none.
On target machine with Xeon(R) CPU E3-1505L v6 @ 2.20GHz(4c8t), the CPU
usage of iperf3 increases from 1% to 4%
[Verify]
Origin
[ ID] Interval Transfer Bandwidth Retr
[ 4] 0.00-10.00 sec 918 MBytes 770 Mbits/sec 0 sender
[ 4] 0.00-10.00 sec 916 MBytes 769 Mbits/sec receiver
Becomes
[ ID] Interval Transfer Bandwidth Retr
[ 4] 0.00-10.00 sec 1.09 GBytes 936 Mbits/sec 0 sender
[ 4] 0.00-10.00 sec 1.09 GBytes 934 Mbits/sec receiver
[Regression Potential]
Low, disable TSO on Ethernet chip will move the TCP segmentation task
to CPU. This increase CPU loading a little bit, and should not introduce
any regression.
=============================
Testing with iperf3 send speed is only 750mbps while receive speed is
normal - 940mbps.
Ubuntu 18.04.1
Msi b250m mortar
---
ProblemType: Bug
ApportVersion: 2.20.9-0ubuntu7.5
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: django 1016 F.... pulseaudio
CurrentDesktop: ubuntu:GNOME
DistroRelease: Ubuntu 18.04
InstallationDate: Installed on 2018-11-09 (6 days ago)
InstallationMedia: Ubuntu 18.04.1 LTS "Bionic Beaver" - Release amd64
(20180725)
IwConfig:
enp0s31f6 no wireless extensions.
lo no wireless extensions.
Lsusb:
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
MachineType: MSI MS-7A69
Package: linux (not installed)
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-39-generic
root=UUID=991b4393-3308-4615-97c8-9854b3bdc67e ro quiet splash vt.handoff=1
ProcVersionSignature: Ubuntu 4.15.0-39.42-generic 4.15.18
RelatedPackageVersions:
linux-restricted-modules-4.15.0-39-generic N/A
linux-backports-modules-4.15.0-39-generic N/A
linux-firmware 1.173.1
RfKill:
Tags: bionic
Uname: Linux 4.15.0-39-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
_MarkForUpload: True
dmi.bios.date: 06/29/2018
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: A.60
dmi.board.asset.tag: Default string
dmi.board.name: B250M MORTAR ARCTIC (MS-7A69)
dmi.board.vendor: MSI
dmi.board.version: 2.0
dmi.chassis.asset.tag: Default string
dmi.chassis.type: 3
dmi.chassis.vendor: MSI
dmi.chassis.version: 2.0
dmi.modalias:
dmi:bvnAmericanMegatrendsInc.:bvrA.60:bd06/29/2018:svnMSI:pnMS-7A69:pvr2.0:rvnMSI:rnB250MMORTARARCTIC(MS-7A69):rvr2.0:cvnMSI:ct3:cvr2.0:
dmi.product.family: Default string
dmi.product.name: MS-7A69
dmi.product.version: 2.0
dmi.sys.vendor: MSI
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