After upgrading form Ubuntu 14.04 to Ubuntu 15.04, my gigabit ethernet controller is performing very very poorly. I get < 10mb throughput.
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lspic:
02:00.0 controller: Qualcomm Atheros AR8121/AR8113/AR8114 Gigabit or Fast Ethernet (rev b0)
lshw:
*-pci:4
description: PCI bridge
product: 82801JI (ICH10 Family) PCI Express Root Port 6
vendor: Intel Corporation
physical id: 1c.5
bus info: pci@0000:00:1c.5
version: 00
width: 32 bits
clock: 33MHz
capabilities: pci normal_decode bus_master cap_list
configuration: driver=pcieport
resources: irq:28 ioport:c000(size=4096) memory:fe800000-fe8fffff ioport:f0800000(size=2097152)
*-network
description: Ethernet interface
product: AR8121/AR8113/AR8114 Gigabit or Fast Ethernet
vendor: Qualcomm Atheros
physical id: 0
bus info: pci@0000:02:00.0
logical name: eth0
version: b0
serial: XX:XX:XX:XX:XX:XX
size: 1Gbit/s
capacity: 1Gbit/s
width: 64 bits
clock: 33MHz
capabilities: bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=ATL1E driverversion=1.0.0.7-NAPI duplex=full firmware=L1e ip=XX.XX.XX.XX latency=0 link=yes multicast=yes port=twisted pair speed=1Gbit/s
resources: irq:17 memory:fe8c0000-fe8fffff ioport:cc00(size=128)
---
ApportVersion: 2.17.2-0ubuntu1
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: test 23180 F.... pulseaudio
/dev/snd/controlC1: test 23180 F.... pulseaudio
DistroRelease: Ubuntu 15.04
EcryptfsInUse: Yes
HibernationDevice: RESUME=UUID=87da39cd-1a60-4c53-927d-87ae037d7a6b
InstallationDate: Installed on 2015-04-29 (10 days ago)
InstallationMedia: Ubuntu-MATE 15.04 "Vivid Vervet" - Release amd64 (20150422.1)
JournalErrors: Error: command ['journalctl', '-b', '--priority', 'warning'] failed with exit code 1: No journal files were found.
MachineType: System manufacturer P5QL-E
NonfreeKernelModules: fglrx
Package: linux (not installed)
ProcFB: 0 VESA VGA
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-16-generic root=UUID=6107da8b-9d18-4922-a432-27a560213d1c ro quiet splash nomdmonddf nomdmonisw vt.handoff=7
ProcVersionSignature: Ubuntu 3.19.0-16.16-generic 3.19.3
RelatedPackageVersions:
linux-restricted-modules-3.19.0-16-generic N/A
linux-backports-modules-3.19.0-16-generic N/A
linux-firmware 1.143
RfKill:
Tags: vivid
UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev'
Uname: Linux 3.19.0-16-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups:
WifiSyslog:
_MarkForUpload: True
dmi.bios.date: 09/11/2009
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 1104
dmi.board.asset.tag: To Be Filled By O.E.M.
dmi.board.name: P5QL-E
dmi.board.vendor: ASUSTeK Computer INC.
dmi.board.version: Rev 2.xx
dmi.chassis.asset.tag: Asset-1234567890
dmi.chassis.type: 3
dmi.chassis.vendor: Chassis Manufacture
dmi.chassis.version: Chassis Version
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr1104:bd09/11/2009:svnSystemmanufacturer:pnP5QL-E:pvrSystemVersion:rvnASUSTeKComputerINC.:rnP5QL-E:rvrRev2.xx:cvnChassisManufacture:ct3:cvrChassisVersion:
dmi.product.name: P5QL-E
dmi.product.version: System Version
dmi.sys.vendor: System manufacturer
This bug is missing log files that will aid in diagnosing the problem. From a terminal window please run:
apport-collect 1453391
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.