LinuxQuestions.org
Welcome to the most active Linux Forum on the web.
Home Forums Tutorials Articles Register
Go Back   LinuxQuestions.org > Forums > Linux Forums > Linux - Networking
User Name
Password
Linux - Networking This forum is for any issue related to networks or networking.
Routing, network cards, OSI, etc. Anything is fair game.

Notices


Reply
  Search this Thread
Old 10-16-2012, 10:58 AM   #1
nixsound
LQ Newbie
 
Registered: Oct 2012
Posts: 3

Rep: Reputation: Disabled
Ubuntu 12.04 Internet very slow after bios update


Hi,

i hope someone can help me finding a solution for the problem I have to deal with since I have updated my bios.

Ubuntu 12.04 (Server)
xfce Desktop


Problem:

I upgraded my bios. After the upgrade my networkspeed has slowed down to 50kb. Sometimes a bit more but never more then ~130kb. Sometime under 50kb.

Which biossettings can result in a slow network?


If i restart my router network speed raises up to 700kb for about 45 seconds minute and slows down again.


I tried downgrading my bios back to the previous version but this does`nt solved the problem and I upgraded it again.


Code:
eth0      Link encap:Ethernet  Hardware Adresse 00:30:84:9c:5b:52  
          inet Adresse:192.168.2.106  Bcast:192.168.2.255  Maske:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metrik:1
          RX packets:12142 errors:0 dropped:0 overruns:0 frame:0
          TX packets:10994 errors:0 dropped:0 overruns:0 carrier:0
          Kollisionen:0 Sendewarteschlangenlänge:1000 
          RX-Bytes:10242547 (10.2 MB)  TX-Bytes:1149814 (1.1 MB)
          Interrupt:20 Basisadresse:0xe800 

lo        Link encap:Lokale Schleife  
          inet Adresse:127.0.0.1  Maske:255.0.0.0
          UP LOOPBACK RUNNING  MTU:16436  Metrik:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          Kollisionen:0 Sendewarteschlangenlänge:0 
          RX-Bytes:0 (0.0 B)  TX-Bytes:0 (0.0 B)
Quote:
root:~# lshw -C network
*-network DEAKTIVIERT
Beschreibung: Ethernet interface
Produkt: RTL8111/8168B PCI Express Gigabit Ethernet controller
Hersteller: Realtek Semiconductor Co., Ltd.
Physische ID: 0
Bus-Informationen: pci@0000:02:00.0
Logischer Name: eth1
Version: 06
Seriennummer: 30:85:a9:ad:18:b8
Größe: 10Mbit/s
Kapazität: 1Gbit/s
Breite: 64 bits
Uhr: 33MHz
Fähigkeiten: pm msi pciexpress msix vpd bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation
Konfiguration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=half firmware=N/A latency=0 link=no multicast=yes port=MII speed=10Mbit/s
Ressourcen: irq:41 ioport:d800(Größe=256) memory:fdfff000-fdffffff memory:fdff8000-fdffbfff
*-network
Beschreibung: Ethernet interface
Produkt: RTL-8139/8139C/8139C+
Hersteller: Realtek Semiconductor Co., Ltd.
Physische ID: 5
Bus-Informationen: pci@0000:03:05.0
Logischer Name: eth0
Version: 10
Seriennummer: 00:30:84:9c:5b:52
Größe: 100Mbit/s
Kapazität: 100Mbit/s
Breite: 32 bits
Uhr: 33MHz
Fähigkeiten: pm bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd autonegotiation
Konfiguration: autonegotiation=on broadcast=yes driver=8139too driverversion=0.9.28 duplex=full ip=192.168.2.106 latency=64 link=yes maxlatency=64 mingnt=32 multicast=yes port=MII speed=100Mbit/s
Ressourcen: irq:20 ioport:e800(Größe=256) memory:febffc00-febffcff
Pinging Router:
Code:
root:~# ping -c 10 192.168.2.1
PING 192.168.2.1 (192.168.2.1) 56(84) bytes of data.
64 bytes from 192.168.2.1: icmp_req=1 ttl=64 time=0.342 ms
64 bytes from 192.168.2.1: icmp_req=2 ttl=64 time=0.331 ms
64 bytes from 192.168.2.1: icmp_req=3 ttl=64 time=0.340 ms
64 bytes from 192.168.2.1: icmp_req=4 ttl=64 time=0.330 ms
64 bytes from 192.168.2.1: icmp_req=5 ttl=64 time=0.326 ms
64 bytes from 192.168.2.1: icmp_req=6 ttl=64 time=0.328 ms
64 bytes from 192.168.2.1: icmp_req=7 ttl=64 time=0.332 ms
64 bytes from 192.168.2.1: icmp_req=8 ttl=64 time=0.330 ms
64 bytes from 192.168.2.1: icmp_req=9 ttl=64 time=0.328 ms
64 bytes from 192.168.2.1: icmp_req=10 ttl=64 time=0.339 ms

--- 192.168.2.1 ping statistics ---
10 packets transmitted, 10 received, 0% packet loss, time 8999ms
rtt min/avg/max/mdev = 0.326/0.332/0.342/0.020 ms
Code:
root:~# ping -c 10 www.google.com
PING www.google.com (173.194.35.145) 56(84) bytes of data.
64 bytes from muc03s01-in-f17.1e100.net (173.194.35.145): icmp_req=1 ttl=58 time=17.8 ms
64 bytes from muc03s01-in-f17.1e100.net (173.194.35.145): icmp_req=2 ttl=58 time=17.5 ms
64 bytes from muc03s01-in-f17.1e100.net (173.194.35.145): icmp_req=3 ttl=58 time=17.0 ms
64 bytes from muc03s01-in-f17.1e100.net (173.194.35.145): icmp_req=4 ttl=58 time=17.2 ms
64 bytes from muc03s01-in-f17.1e100.net (173.194.35.145): icmp_req=5 ttl=58 time=16.9 ms
64 bytes from muc03s01-in-f17.1e100.net (173.194.35.145): icmp_req=6 ttl=58 time=17.0 ms
64 bytes from muc03s01-in-f17.1e100.net (173.194.35.145): icmp_req=7 ttl=58 time=17.6 ms
64 bytes from muc03s01-in-f17.1e100.net (173.194.35.145): icmp_req=8 ttl=58 time=17.2 ms
64 bytes from muc03s01-in-f17.1e100.net (173.194.35.145): icmp_req=9 ttl=58 time=16.8 ms
64 bytes from muc03s01-in-f17.1e100.net (173.194.35.145): icmp_req=10 ttl=58 time=19.0 ms

--- www.google.com ping statistics ---
10 packets transmitted, 10 received, 0% packet loss, time 9015ms
rtt min/avg/max/mdev = 16.879/17.438/19.077/0.638 ms
root:~#
Code:
root:~# smartctl -a /dev/sda | grep Load_Cycle_Count
193 Load_Cycle_Count        0x0012   095   095   000    Old_age   Always       -       6843
root:~#

Code:
root:~# hdparm -B /dev/sda

/dev/sda:
 APM_level	= off
root:~#
Code:
root:~# hdparm -S
  -S: bad/missing standby-interval value (0..255)
root:~#
Code:
root:~# ps aux | grep cron
root      1099  0.0  0.0  19112   864 ?        Ss   17:30   0:00 cron
root      2297  0.0  0.0  10896   892 pts/2    S+   17:53   0:00 grep --color=auto cron
root:~#
Code:
root:~# netstat -rn
Kernel-IP-Routentabelle
Ziel            Router          Genmask         Flags   MSS Fenster irtt Iface
0.0.0.0         192.168.2.1     0.0.0.0         UG        0 0          0 eth0
192.168.2.0     0.0.0.0         255.255.255.0   U         0 0          0 eth0
root:~#
Code:
root:~# free -m
             total       used       free     shared    buffers     cached
Mem:          7733        701       7032          0         26        250
-/+ buffers/cache:        424       7309
Swap:         3436          0       3436
root:~#
 
Old 10-16-2012, 11:07 AM   #2
sag47
Senior Member
 
Registered: Sep 2009
Location: Raleigh, NC
Distribution: Ubuntu, PopOS, Raspbian
Posts: 1,899
Blog Entries: 36

Rep: Reputation: 477Reputation: 477Reputation: 477Reputation: 477Reputation: 477
Sounds like a potentially bad flash. I would recommend either trying to reflash your new BIOS again or to revert to the last version before the current and wait for another update.

If the company provides checksums then be sure to run a checksum on your downloaded BIOS firmware. I'll think more on the problem when I have more time and see if we can come up with something else as well.

Last edited by sag47; 10-16-2012 at 11:09 AM.
 
Old 10-16-2012, 11:29 AM   #3
nixsound
LQ Newbie
 
Registered: Oct 2012
Posts: 3

Original Poster
Rep: Reputation: Disabled
Hi,

I have downgraded back to the previous version without a change. After downgrading has not changed anything I downloaded the biosupgrade again and upgraded again with the new file. All in all I have tried 3 files.

I disabled the internal networkadapter and installed a networkcard. Nothing.

Are there settings in bios which can result in such trouble with Ubuntu?
 
Old 10-16-2012, 12:06 PM   #4
nixsound
LQ Newbie
 
Registered: Oct 2012
Posts: 3

Original Poster
Rep: Reputation: Disabled
Ok. It seems to not be a problem with the update. Tried it again.
 
  


Reply



Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off



Similar Threads
Thread Thread Starter Forum Replies Last Post
Is it safe to flash bios update on Ubuntu 11.10 floppyjoe Linux - Laptop and Netbook 4 12-08-2011 05:39 PM
Ubuntu internet very slow after update PatrickNew Linux - Networking 2 12-29-2009 06:56 PM
Ubuntu 8.10 - Internet really really slow Boffy Linux - Wireless Networking 21 05-05-2009 06:02 AM
Gaphics problem in ubuntu 8.04 (slow to update) katesfb Linux - Newbie 3 09-29-2008 01:06 AM
SUSE 10 : Internet Slow + Can't update surfduke SUSE / openSUSE 3 10-09-2005 10:09 AM

LinuxQuestions.org > Forums > Linux Forums > Linux - Networking

All times are GMT -5. The time now is 07:29 PM.

Main Menu
Advertisement
My LQ
Write for LQ
LinuxQuestions.org is looking for people interested in writing Editorials, Articles, Reviews, and more. If you'd like to contribute content, let us know.
Main Menu
Syndicate
RSS1  Latest Threads
RSS1  LQ News
Twitter: @linuxquestions
Open Source Consulting | Domain Registration