When trying to transfer a file from Windows 10 to Ubuntu 18.04 over samba, transfer speed fluctuates up and down between 20MB/s and 110MB/s. When transfering from Ubuntu to Windows 10 speed is steady at 90MB/s (instead of 110MB due to a bug that I've already reported)
Iperf3 shows consistent speeds without any fluctuation.
I'm quite disappointed because there was no such problem a few weeks before. I'm guessing that this may have been an update that broke it. It's unlikely that I wouldn't have noticed it, because I was troubleshooting another issue related to transfer speeds.
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ProblemType: Bug
ApportVersion: 2.20.9-0ubuntu7.5
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: django 2115 F.... pulseaudio
CurrentDesktop: ubuntu:GNOME
DistroRelease: Ubuntu 18.04
InstallationDate: Installed on 2018-11-09 (20 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 1.173.2
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
This bug is missing log files that will aid in diagnosing the problem. While running an Ubuntu kernel (not a mainline or third-party kernel) please enter the following command in a terminal window:
apport-collect 1806106
and then change the status of the bug to 'Confirmed'.
If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.
This change has been made by an automated script, maintained by the Ubuntu Kernel Team.