[Bug 552752] [NEW] Network is slower than usual for Intel cards

[Naty Bidart]

Public bug reported:

After installing updates from last Sunday (2010-03-28), my network
connection is much more slower than usual.

I tested this on 2 computers, a laptop and a desktop station. Laptop also has an Intel card, and uses a wireless connection.
Desktop uses a wired connection, and the card is:

00:19.0 Ethernet controller: Intel Corporation 82578DC Gigabit Network Connection (rev 05)
        Subsystem: Intel Corporation Device 0000
        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
        Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
        Latency: 0
        Interrupt: pin A routed to IRQ 34
        Region 0: Memory at e3100000 (32-bit, non-prefetchable) [size=128K]
        Region 1: Memory at e3124000 (32-bit, non-prefetchable) [size=4K]
        Region 2: I/O ports at 2020 [size=32]
        Capabilities: [c8] Power Management version 2
                Flags: PMEClk- DSI+ D1- D2- AuxCurrent=0mA PME(D0+,D1-,D2-,D3hot+,D3cold+)
                Status: D0 PME-Enable- DSel=0 DScale=1 PME-
        Capabilities: [d0] Message Signalled Interrupts: Mask- 64bit+ Queue=0/0 Enable+
                Address: 00000000fee0100c  Data: 41d9
        Capabilities: [e0] PCIe advanced features <?>
        Kernel driver in use: e1000e
        Kernel modules: e1000e

After shutting down all services that may heavily user the net
connection (ubuntu one, deluge, gwibber, thunderbird), I get this ping
times to google.com:

--- google.com ping statistics ---
1014 packets transmitted, 1007 received, 0% packet loss, time 6156579ms
rtt min/avg/max/mdev = 24.397/828.224/2888.589/1069.464 ms, pipe 3

I tested my bet connection using the laptop and the wireless, on another
operating system, and I've got:

average time = 116 ms

ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: linux-image-2.6.32-18-generic 2.6.32-18.27
Regression: Yes
Reproducible: Yes
TestedUpstream: No
ProcVersionSignature: Ubuntu 2.6.32-18.27-generic 2.6.32.10+drm33.1
Uname: Linux 2.6.32-18-generic x86_64
NonfreeKernelModules: nvidia
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.21.
Architecture: amd64
AudioDevicesInUse:
 USER        PID ACCESS COMMAND
 /dev/snd/controlC0:  nessita    1637 F.... pulseaudio
 /dev/snd/pcmC0D0p:   nessita    1637 F...m pulseaudio
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0xe3120000 irq 22'
   Mixer name	: 'Realtek ALC889'
   Components	: 'HDA:10ec0889,80860033,00100004'
   Controls      : 41
   Simple ctrls  : 22
Date: Wed Mar 31 15:29:35 2010
HibernationDevice: RESUME=UUID=ab314c26-0b68-4550-8dca-82b428aced0b
InstallationMedia: Ubuntu 10.04 "Lucid Lynx" - Alpha amd64 (20100224.1)
IwConfig:
 lo        no wireless extensions.
 
 eth0      no wireless extensions.
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.32-18-generic root=UUID=80488a15-cc97-415a-a0ec-f64174cc58b6 ro quiet splash
ProcEnviron:
 PATH=(custom, user)
 LANG=en_US.utf8
 SHELL=/bin/bash
RelatedPackageVersions: linux-firmware 1.33
RfKill:
 
SourcePackage: linux
dmi.bios.date: 08/05/2009
dmi.bios.vendor: Intel Corp.
dmi.bios.version: KGIBX10J.86A.3206.2009.0805.1855
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: DP55WG
dmi.board.vendor: Intel Corporation
dmi.board.version: AAE57269-404
dmi.chassis.type: 2
dmi.modalias: dmi:bvnIntelCorp.:bvrKGIBX10J.86A.3206.2009.0805.1855:bd08/05/2009:svn:pn:pvr:rvnIntelCorporation:rnDP55WG:rvrAAE57269-404:cvn:ct2:cvr:

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug lucid needs-upstream-testing regression-update

-- 
Network is slower than usual for Intel cards
https://bugs.launchpad.net/bugs/552752
You received this bug notification because you are a member of Kernel
Bugs, which is subscribed to linux in ubuntu.