setting kernel parameter "mem=16384M" did not help
(was set via grub GRUB_CMDLINE_LINUX="mem=16384mb")
killing lightgm resolves the problem and speed jumps to 12mb/s . But
once back in GUI, problem returns.
Tested using Netcat and iperf, LAN speeds peek out at 1.2MB/s
Effected:
PC1
Desotop, Ram Page 3 Extreme motherboard:
Description: Ubuntu 14.04.1 LTS
Linux ubuntu 3.13.0-34-generic #60-Ubuntu SMP Wed Aug 13 15:45:27 UTC 2014
x86_64 x86_64 x86_64 GNU/Linux
network
description: Ethernet interface
product: 82567V-2 Gigabit Network Connection
vendor: Intel Corporation
physical id: 19
bus info: pci@0000:00:19.0
logical name: eth1
version: 00
size: 1Gbit/s
capacity: 1Gbit/s
width: 32 bits
clock: 33MHz
capabilities: pm msi bus_master cap_list ethernet physical tp 10bt
10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=e1000e
driverversion=2.3.2-k duplex=full firmware=1.8-5 ip=10.10.10.121 latency=0
link=yes multicast=yes port=twisted pair speed=1Gbit/s
resources: irq:75 memory:f7de0000-f7dfffff memory:f7ddf000-f7ddffff
ioport:9c00(size=32)
LAPTOP 1
Description: Ubuntu 12.04.4 LTS
Linux user 3.11.0-26-generic #45~precise1-Ubuntu SMP Tue Jul 15 04:04:35 UTC
2014 i686 i686 i386 GNU/Linux
network
description: Ethernet interface
product: RTL8101E/RTL8102E PCI Express Fast Ethernet controller
vendor: Realtek Semiconductor Co., Ltd.
physical id: 0
bus info: pci@0000:09:00.0
logical name: eth0
version: 05
serial: 88:ae:1d:49:8e:f3
size: 100Mbit/s
capacity: 100Mbit/s
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress msix vpd bus_master cap_list ethernet
physical tp mii 10bt 10bt-fd 100bt 100bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=r8169
driverversion=2.3LK-NAPI duplex=full firmware=rtl_nic/rtl8168e-2.fw
ip=192.168.9.19 latency=0 link=yes multicast=yes port=MII speed=100Mbit/s
resources: irq:43 ioport:2000(size=256) memory:f050c000-f050cfff
memory:f0508000-f050bfff
+ several other laptops/computers.
Older laptops are not effected.
Ilya your post where my guiding stars! Thank you.
Also, I think issues like “Remote Desktop VNC very slow”
http://ubuntuforums.org/showthread.php?t=1752116&page=2
and many others could have been results of this bug and users not realising
that LAN speed is the issue..
Issue remains unresolved for me.
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https://bugs.launchpad.net/bugs/1264707
Title:
IO limit 1.2 MB/s for 32bit ubuntu (PAE, 32 Gb RAM)
Status in “linux” package in Ubuntu:
Confirmed
Bug description:
I recently installed a new motherboard Asus M5A99FX PRO R2.0 and found out
that IO speed is very low; i.e. the dd command output:
dd if=/dev/zero of=/tmp/output bs=8k count=1000k
^C13885+0 records in
13885+0 records out
113745920 bytes (114 MB) copied, 99.6639 s, 1.1 MB/s
This issue is reproducing with my new SSD (with ext4), my USB drives
and my hard disk (with ext4) from Ubuntu i386, 13.04 and 13.10. Such a
speed is not ok, awfully slow. When I run two or more the same dd
commands simultaneously, I have 1,2 Mb/s for every process.
WORKAROUNDs:
+ turn off ACPI services, see more at
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1264707/comments/18
+ Use the amd64 version
+ Use CONFIG_HIGHMEM4G=y
+ CONFIG_VMSPLIT_1G=y
ProblemType: Bug
DistroRelease: Ubuntu 13.10
Package: linux-image-3.11.0-12-generic 3.11.0-12.19
ProcVersionSignature: Ubuntu 3.11.0-12.19-generic 3.11.3
Uname: Linux 3.11.0-12-generic i686
ApportVersion: 2.12.5-0ubuntu2
Architecture: i386
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC2: ubuntu 4507 F.... pulseaudio
/dev/snd/controlC1: ubuntu 4507 F.... pulseaudio
/dev/snd/controlC0: ubuntu 4507 F.... pulseaudio
CasperVersion: 1.336ubuntu1
Date: Sat Dec 28 15:56:33 2013
IwConfig:
lo no wireless extensions.
eth0 no wireless extensions.
LiveMediaBuild: Ubuntu 13.10 "Saucy Salamander" - Release i386 (20131016.1)
MachineType: To be filled by O.E.M. To be filled by O.E.M.
MarkForUpload: True
ProcEnviron:
LANGUAGE=en_US
TERM=xterm
PATH=(custom, no user)
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcFB: 0 radeondrmfb
ProcKernelCmdLine: noprompt cdrom-detect/try-usb=true persistent
file=/cdrom/preseed/hostname.seed boot=casper initrd=/casper/initrd.lz quiet
splash -- maybe-ubiquity
PulseList:
Error: command ['pacmd', 'list'] failed with exit code 1: Home directory not
accessible: Permission denied
No PulseAudio daemon running, or not running as session daemon.
RelatedPackageVersions:
linux-restricted-modules-3.11.0-12-generic N/A
linux-backports-modules-3.11.0-12-generic N/A
linux-firmware 1.116
RfKill:
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 04/10/2013
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 1708
dmi.board.asset.tag: To be filled by O.E.M.
dmi.board.name: M5A99FX PRO R2.0
dmi.board.vendor: ASUSTeK COMPUTER INC.
dmi.board.version: Rev 1.xx
dmi.chassis.asset.tag: To Be Filled By O.E.M.
dmi.chassis.type: 3
dmi.chassis.vendor: To Be Filled By O.E.M.
dmi.chassis.version: To Be Filled By O.E.M.
dmi.modalias:
dmi:bvnAmericanMegatrendsInc.:bvr1708:bd04/10/2013:svnTobefilledbyO.E.M.:pnTobefilledbyO.E.M.:pvrTobefilledbyO.E.M.:rvnASUSTeKCOMPUTERINC.:rnM5A99FXPROR2.0:rvrRev1.xx:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.:
dmi.product.name: To be filled by O.E.M.
dmi.product.version: To be filled by O.E.M.
dmi.sys.vendor: To be filled by O.E.M.
To manage notifications about this bug go to:
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