I'm experiencing very slow network speeds in one direction (out) on a clean install of debian.
iperf client running on laptop connecting to server with issue:
Code: Select all$ iperf -c 192.168.10.187 -d
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Server listening on TCP port 5001
TCP window size: 128 KByte (default)
------------------------------------------------------------
------------------------------------------------------------
Client connecting to 192.168.10.187, TCP port 5001
TCP window size: 129 KByte (default)
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[ 5] local 192.168.10.131 port 55340 connected with 192.168.10.187 port 5001
[ 6] local 192.168.10.131 port 5001 connected with 192.168.10.187 port 52664
[ ID] Interval Transfer Bandwidth
[ 5] 0.0-10.0 sec 247 MBytes 207 Mbits/sec
[ 6] 0.0-11.5 sec 1.00 MBytes 730 Kbits/sec
I've tried with different cables on the server, no luck. Also note that the laptop gets full speed to speedtest.net as per my internet subscription (75/75 gbit fiber), so the laptop can be ruled out as a problem since it gets more than 75X performance to the internet compared to the local server.
The main purpose of this server is to be a virtualbox host. I've set up one guest system and ran iperf between the host/guest (bridged network). It gives better numbers, still the host -> guest direction is much slower than it should be:
Code: Select allClient connecting to 192.168.10.187, TCP port 5001
TCP window size: 108 KByte (default)
------------------------------------------------------------
[ 3] local 192.168.10.163 port 48573 connected with 192.168.10.187 port 5001
[ 5] local 192.168.10.163 port 5001 connected with 192.168.10.187 port 48856
[ ID] Interval Transfer Bandwidth
[ 3] 0.0-10.0 sec 1.65 GBytes 1.42 Gbits/sec
I have an MSI Megabook M662. Can't get my wireless working. I have "enabled" checked, but can't view any connections. I don't have wireless at home, I'm trying to make this work for free connections at the library, etc. From the Help Menu troubleshooting I tried:
This reports Disabled, and the advice is to check that device is on. But I just want to roam for service, I don't have my own wireless at home. I thought I might need to use ndiswrapper but I cannot locate a driver for this card info:
I have 2 dedicated servers, one with RTL8111/8168B (rev 02) and one with RTL8111/8168B (rev 01) both running centos 5.3, the problem is like this, all things run great on the dedicated server with NIC RTL8111/8168B (rev 02) until we run backup (cpanel backup) after the backup is finish the server lags , no high load, just lags, the server is a 8 GB ram, i7 quad core, so there is no load problem or someting like this, the second server has also cpanel on it and it has no lag but it has RTL8111/8168B (rev 01) , we think that the problem is with the RTL8111/8168B (rev 02) should we update the driver ?
Here is the output from it: 2.6.18-128.1.10.el5 x86_64 x86_64 06:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller (rev 02) .....
I've been having problems trying to connect to my home network with my onboard NIC. No solution given on the forum has helped me so far.. I just can't seem to connect to the network and I have no idea how to fix it. My NIC is recognized (lsmod shows r8168 is loaded) but when I choose 'auto ethernet' nothing happens .I hope there is someone that can help me because It's a pain to not have internet access...
This week I picked up a Dell Studio Hybrid and installed CentOS on it. I originally used 5.0 since I already had the DVD and the network card wasn't recognized at all (lspci recognized it but the card didn't show up in system-config-network). I then downloaded the 5.2 DVD and installed that. The network card then showed up in system-config-network but it still didn't work. If DHCP is enabled it tells me that no link is present, and if I manually configure it, I still can't ping the router. lspci reports the following about the network card:
I put Fedora 10 on it and the network is working fine, but I'd rather run CentOS on this machine. Is the issue likely to be fixed with CentOS 5.3 or should I just stick with Fedora?
I am running a mail server and my POP3 clients have started complaining of slow speeds, about 10 days back. This prompted me to take remedial action on many fronts, finally I decided to look at the link itself.Attempts to force the NIC into full duplex mode using ethtool have failed. The command runs and throws me back to the prompt, but the NIC remains in half duplex mode.
Command that I have tried: ethtool -s eth1 speed 100 duplex full autoneg on modprobe -l r816*:
My wireless download rate is absurdly low (0.3 mbps) compared to a faster upload rate (1.5 mbps). My girlfriend's laptop running windows gets much higher download rate (20+ mbps).
I have a Dell inspiron 640m (1405). I am a reasonably clued in linux user, but I am getting serious networking speed problems. The networking card is an intel 3945ABG When wirelessly connecting with windows XP, everything runs fine and the network connection is fast.
When connecting with any linux distro, the networking speed is abysmally slow, and the connection drops randomly. (the network is recognised and the connection is made however)
I have just formated and did a fresh install to start all over. I installed Ubuntu 9.1 and everything went fine but the network. The computer serve as a NAS and MediaPlayer. When getting a file from the server, I get a speed of 40-60mb/sec, which are good for a Gigabit network. When I try to put a file in, the speed can't pass more than 1mb/sec and often stop.
In mi fstab file I mount a smb file server at boot. The code is: //<ip address>/data /home/eng-2/NAS smbfs credentials=/home/eng-2/.smbcredentials,dir_mode=0775,gid=1000,uid=1000 0 0 Transfer rate to the server is approx 100 KB/s Whilst transfer rate from the server 16 MB/s If I mount it from Places>connect to server. Both to and from speeds are 16 MB/s. Why is it so slow when mounted through fstab?
I have problems with my network speed when i ping my proxy server I end up getting a high packet loss generally more than 30%.I have tried to use various network monitoring softwares like etherape, wireshark, tcpdump but I am not able to get to the bottom of the problem.basically I am trying to find out where the lost packets are going.
A lot of people have the problem to find themselves with Lucid Lynx 10.04 and experience massive issues when connecting to wireless - me too. As a service, here some relevant links which promise relief:
[code]...
I tried all of them, and none reliably worked. Every solution which required re-association wtih the AP helped for some time, but nothing helped for long. First, don't let yourself fool by the disable IPv6 trap - while it is "enabled" it is acutally not used by Lucid! I have a clean install of Kubuntu 10.04 on an AMD64 Laptop with Broadcom STA driver: 03:00.0 Network controller: Broadcom Corporation BCM4328 802.11a/b/g/n (rev 03) However I can reliably stabilize my connection for some time either by manually disabling WiFi with the hardware switch or disabling WiFi by software means and re-activating. This brings speed at par with Kubuntu 9.10 until some time. Can anybody confirm this behaviour?
I have a 500gB USB drive connected to my laptop for backups and filestorage. But I can't get it to play nice with Midnight Commander. My transfer speeds max ut at 2MB/s wich is painfully slow when moving large files such as movies. Worker FM transfers the same files to the same drive much MUCH faster (not sure by how much, though). This leads me to the conclusion that the problem lies with MC.
I am using debian(lenny) on a pc coexisting with windows. I use grub to decide which o/s to boot.
I picked debian, logged in as a regular user. I selected "Administration" under the "System" tab and then selected "Update Manager". I had to provide the root password.
I was asked to insert Binary DVD-1 and was told to use smart update. I did at which time 16 files begun downloading at between 4400 B/s and 4800 B/s from the Security server. It looks like it is downloading a new linux image.
I mount a BD-RE in Debian Jessie to write about 20GB of data. But the writing speed is terrible slow. I get a Speed of 250kb/sec.
Are there any options to increase the speed of writing? I don't use packet writing and no wodim, no growisofs, nothing. I just mounted the disk and I use mc (Midnight commander) to copy the data.
I got a new machine with GA-p55A-ud3 mobo and a WDC WD10EARS 1T disk. When I tried to benchmark the disk IO, I was suprised by the low write speed:
[Children see throughput for 1 initial writers = 35962.63 KB/sec Parent sees throughput for 1 initial writers = 35962.63 KB/sec Min throughput per process = 35962.63 KB/sec
Since 2.6.38 ath9k has become slow as a snail. After searching this issue I have found a solution. Create a file called /etc/modprobe.d/ath9.conf in this file enter thisoptions ath9k nohwcrypt=1Reboot or reload the module and enjoy high speed again.
I installled Ubuntu 10.4.1 on a brand new computer with a Realtek RTL8111/8168B PCI Express Gigabit Ethernet controller on a Foxconn G41MXE motherboard. and I have been unable to connect to wireless network. I have gone through the wireless trouble shooting guide to no avail. When i "check for device recognition" i get the following (note the is no CLAIMED UNCLAIMED ENABLED OR DISABLED)
I'm having a strange problem with data transfers between systems. I have a file server + my desktop. Both are running Debian 8.3. I have a samba share running on the file server and I mount the shares on my desktop on boot via /etc/fstab
When I copy a file using the nautilus from my home folder (on my HDD) on my desktop to the mounted network location, my transfers start out at gigabit speeds 80MB/s-90MB/s for a couple seconds and then drop down to about 8MB/s
But when I terminate the transfer and then use scp to transfer the same file, I get consistent gigabit speed throughout the transfer. I am not sure what is going on.
I am running Fedora-13 64 bit on my Dell Laptop, The same Laptop has Windows-7 as well (dual boot system). I have chosen ext3 filesystem while installing fedora. The file transfer speed in Fedora-13 over the network to my network drive comes out to be not more than 5MBPS.Where as in Wndows-7 I am getting the speed of around 10~12 MBPS. Also I found that copying files in USB flash drive is very slow than in Windows-7 . What could be the problem? To add it , I have another Laptop Running Ubuntu-10.04 , which also performs network transfers at 10~12 MBPS. So its just the fedora-13 who has this problem. As far as I remember this was not the case with Fedora-12
Does anyone know how to revert network speeds to those attained with openSUSE11.2-64? On openSUSE11.2-64 the reported network download speed was,
max : 420 kB/s ave : ~ 200 kB/s
After upgrade to openSUSE 11.3-64 the figures dropped to about 25% of the previous values. After upgrade to KDE 4.5 and plasmoid-networkmanagement the initial values did not change but the average value dropped after about 30 seconds to ~ 15 kB/s. Approach so far:
1. The motherboard's (A780GM-LE) build in LAN (Realtek RLT8111DL) was originally detected by openSUSE 11.3 as the Realtek RLT8169 and kernel module r8169 installed. This was replaced by the latest module r8168-8.019.00 from Realtek.
2. After kernel update to Linux 2.6.34.4-0.1-desktop x86_64 the plasmoid-networkmanagement was replace by NetworkManager-kde4. This improved flow with,
As too my question, at this time I dont control the router/firewall an I would like to block a port thats used for guild wars on my workstation for a while. The reason for blocking is children have abused it an lost it.In this case I am trying to block outgoing traffic on port 6112. I have tried setting up a proxy server on the workstation, but the game seems to ignore it an jump on. Due to the environment, I enabled the workstation SuSEFirewall2 firewall an tried setting up "lo" as a internal an configure the firewall as a router, then disable 0/0 an configured for 0/0,tcp,443 an re route port 80 traffic to proxy.
When I had my own internet, I had a transparent proxy enforcing rules for access times. So setting up a proxy on each machine would not be a bad thing, even if it took some creative thinking. I am trying, but seem to be missing something.Ideally, I would like to setup a transparent proxy, as my kids have learned alot about system administration an know to check the proxy module. If all they have to do is un check "Use Proxy" an by pass a local proxy server, then I am kinda defeated. An applications such as firefox have a proxy setting they could set to none instead of system
I am running Ubuntu 10.04 from a USB key (16GB). Overall I'm pretty fine with it but there are a few problems I am having. It seems to be very slow. In particular, Firefox and Pidgin freeze every now and then, before becoming active again. The same thing also happens for other applications such as Rhythmbox, Gedit, and the terminal. Additionally my start up and shut down times are horrible (worse than when I use Vista and Ubuntu 8.04). I was wondering if there is something with my install or if this is all due to the fact that I am running from a USB. I don't think it's the USB since I ran 8.04 from a USB HDD (55GB) and didn't have any problems with speed.
I'm using Fedora 13 x86_64. The internet speed is very very slow. I have enough hard disk space, RAM. Processor AMD Athlon II 2.6GHz. What can be the reasons?
I just installed Ubuntu 9.10, replacing Windows 7.
its running a little slower than I hoped it would, loading movies takes a while, and when i switch to full screen, it takes about 5 seconds to catch up.
im suspicious that my video card driver might not be configured correctly. can anyone tell me what I might need to configure to get things running smoother?
other things on the computer are also running slow, like opening Firefox, it takes a while for the window to appear.
I have been trying out Ubuntu One for the past couple of days but find it to be incredibly slow. At first i had put a folder will a large amount of images in the ubuntu one folder. The total size of it was 35Mb, after over 26 hours only 11,5Mb of that had been uploaded.
After looking around some on these forums i saw several comments about it being slow when it is a large amount of files, no matter if the filesize is small or large. I decided to try it out with a larger single file. I erased everything that was in the previous share and then put my testfile of 350Mb in the Ubuntu One folder.
After two hours of waiting i could still not see it on the U1 website so i decided to see how long it would take with dropbox and put a copy of that file in my dropbox folder as well. The file was uploaded correctly to dropbox in just a couple of minutes but it has still not been uploaded to the U1 website even though it has been 4-5 hours since i first put it in my U1 folder.
I need to transcript some recordings to a friend of mine. I woule like to have the sound playing slower than usual. Is it possibe on any Ubuntu (L. Lynx) anyway? How?
I've been keeping my feet wet learning Debian. So far only in a virtual machine but I have had that machine running every day. I'm running a Lenny/Squeeze mix.The system is running well, yet every time I reboot or halt the system there is a long pause at the "Deconfiguring network devices" message. I traced the message to S35networking. With this virtual machine, which is a model for my eventual physical machine installation, I have only a single wired eth0 NIC (pcnet32).
I'll take a wild guess the script might be trying to find additional cards to halt, or perhaps a wireless card that does not exist, but that is just a guess. I'm stil learning my way around with how the init.d scripts and various /etc config files interact.I'm using a static IP address. DHCP is disabled, as far as I can tell. I did not notice anything in the logs.
I have 2 ASUS Boxes (one with 8GB, one with 4GB) When both mtus are set at 7200, using scp to copy a 56MB file takes 2:06. If I reduce either mtu to 1500, the speed is 2 seconds. I'm wondering if this is some kind of kernel bug or driver bug or what. For the moment, I've lowered the mtu to 1500 to get the performance out of the machines, but find it interesting that what should make it faster is actually slowing down. Where should I post this to get it looked at? Is anyone else seeing it.I see a similar performance issue with smbclient too.
