Ubuntu Networking :: Slow Copy Speed To Network Volume
May 4, 2011
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?
When i try to copy files from my samba server (Ubuntu 9.10) to my windows seven media center, the speed is extremely slow. So slow that is better to download 100mb file from the internet, than from my lan. And on my lan, every card and switch is at 1000 mbps speeds on cat5 cables. And from XP or other linux machine
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:
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 am having a very weird problem, of which I have never heard before. The problem, shortly (I will give details in the following), is that the copy speed between the partition in which I am running my Fedora and another partition where I store backup data is 50K/s, which is extremely slow (it has been usually around 10M/s, almost 200 times faster).
My laptop is a HP Pavillion Dv7 2080 ep, in which I have two disks of 250G. One of the disks is partitioned between two operational systems, Fedora 14 64 and Windows 7 64, and the other disk contains the above referred partition where I store my backups (lets call it backup disk). The problem happens ONLY when I try to copy anything from my home in Fedora to the backup disk. I first thought it could be a problem in the backup disk. Then I login into the windows and made a copy of some AVI files (3G approx) to the backup disk, which went normally, within a few seconds, thus eliminating this possibility. I try therefore to make the inverse process, a copy from the backup disk into my home folder in Fedora. It went normally, copying 4 G also within few seconds, actually with an excellent speed of 50M/s. After searching in google, I saw some people also complaining of slow copy speed (although they had 7M/s, more than 100 times faster than what I have now), and one cause could be that the source file system (in my case the Fedora home folder) would be near its full capacity. I therefore eliminate everything that I could, around 15G, and now I have like 20G of free disk space, which I think is more than enough for everything. However, the problem persists. Some people also said that it could be the type of files and/or amount of data. I therefore tried several kinds of files (from raw data files to AVI and RMVB regular video files), and several amounts of data (from single files with a few Megas to folders with 20G) and in all cases I had the same unacceptably low copy speed of 50K/s.
It seems to be a problem in the software, caused by the updates, since until 10 days ago it was everything ok. However, I usually make the updates whenever they appear but make my backups much less frequently. Therefore I don't know for sure what has changed in Fedora through the updates since the last backup I made, when everything was working fine.
I have just rewired my LAN using Cat 6 cables. Download- and Upload speeds to my main machine are great :However, it seems my LAN speed is very slow. when I copy large files from my main desktop pc to my mediaplayer, I only reach a speed of 3,7 MB/s in Ubuntu 10.10 using SMB protocol to connect to mediaplayer. I use a Sitecom WL351 Router that works fine as far as I can see. Using my dualboot Windows 7 I can copy the same large files using same setup (same pc to same mediaplayer) I can copy with almost 10 MB/s. I appreciate a little protocol overhead in Ubuntu, but this seems to be a little too much
i have amd athlon x2 3gb RAM ddr2 two hdd one 80gb other 1tb in this computer i got only ubuntu all disk in EXT4.i want to copy 10gb many file of 700mb or 1gb ( many linux ISO )the transfer is 1mb/s this is SOOO SLOW.i did a touch /forcefsck just in case but nothing happen it is still slow!!what might be the problem ??
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.
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'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 ------------------------------------------------------------ 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) ------------------------------------------------------------ [ 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
When using launchpad and the ubuntu daily build website it is very slow. I get 1.2mb/s normally and the speed drops quickly to 0kb/s This is the case from any version of ubuntu that is installed on my laptop.In windows it is no problem, equally there is no problem from a live cd or an install on my external hard disk. Is canonical blacklisting/slow listing my ip?
I am behind a university network but am sure this problem occurs at home .I did a clean install and had no problem until about an hour ago. When I tried to re download a project using bzr my speed instantly ropped.I had downloaded it fine a couple of hours ago. I hope that someone can shine some light on this, its very hard to work on projects if I can't download them.
I have very suboptimal Internet speed in Wifi with Ubuntu. Normally in WIndows 7 I get download speeds up to 800 KB/s and a very fast Wifi experience, but in Ubuntu I get 100KB/s maximum and web page load speed is very extremely slow. Also, pinging to AP often gives very high response times and a lot of lost packages while in Windows they are very low and none packages are lost. I have a Netgear wg111v3 which worked out of box when I installed Ubuntu but always with this problem. It is updated and I've reinstalled Ubuntu many times..
Also I forgot to say that in Ubuntu the connection goes down very often and sometimes will not connect again until I reboot. Again in Windows never happened that. Motherboard: GA-MA74GM-S2H CPU: AMD Athlon 64X2 dual core 2 GB RAM Ubuntu 10.10 64 bit Wireless adapter Netgear wg111v3 USB .....
After update 11.2 to 11.4 copy jobs from netware 5.1 volume to local disk linux system does crash after a couple of seconds. I might have to do if there a allot of small files in that job. If happend system reboot is required because unmount netware volume nor delete copied files to the local linux system is not possible. Recompiling ncpfs package not possible because error free source package ncpfs version 2.2.6 might not be availble.
May 22 19:31:03 jaci kernel: [ 4694.764721] ------------[ cut here ]------------ May 22 19:31:03 jaci kernel: [ 4694.764730] kernel BUG at /usr/src/packages/BUILD/kernel-desktop-184.108.40.206/linux-2.6.37/include/linux/dcache.h
I've been using Ubuntu 8.04 for about a year and the wireless has been fine but now it's gone screwy and I can't figure out why. This has happened on my laptop and wife's who uses Ubuntu Hardy also. The speed drops to almost 0 mb/s whenever the signal strength is less than 95%.
It isn't the internet connection as vista (I dual boot) works fine below 95% signal strength. To get the internet speed to be at a level that can load an internet page, I have to within 3 feet of the router!! Both of the laptops don't use ndiswrapper, the internet connected straight away from a fresh install.
I'm experiencing slow speed transfer between two wireless connected laptops running ubuntu 9.10. Using SSH to tranfer files between these two laptops, which connect to the internet via a wirelesss router, with good speed. This is why I'm surprised by this low speed : 52.3 KB/s, averaging 3 hours and 31 minutes for a 700 Mb movie. Is there any way to make this faster ?
We have a server and we have instales an Open suse 10.3 on it. We created a Samba server also. Made to share folder, that we acces from network from other computers that have xp.
The problem is if we try to copy from server it is very slow only 100-300kb/s. The strange thing is that if i copy 1 file then its slow but if i start to copy another one the speed gos up to 10-15mb/s. Evry time i want to copy somethin or install from that server i need to start another copy. If i copy from a comp to that server the speed is normal only if i copy from server its slow.
I replaced only my mainbord and cpu and Ubuntu 9.10 boot just fine. The only issue that I have is that my connection speed dropped from 10Mb to 3Mb. I try the connection on my laptop and it is fine 10Mb, so the problem is with the PC. What else to try before reinstall Ubuntu as a final step?
I am hoping someone can help me I setup a brand new ubuntu 11.04 64bit system with:-AMD Phoenom 840 (3.7GHz overclocked) 8GB DDR3 RAM.WD20EARS x 4madmin (RAID5) SetupFor some reason I cannot get the write speed above 15mb/s & I have tried modifying the cache_Stripe_size from 256 to 8192.My read speeds are great burst at 120mb/s & stable at about 60mb/s.The only other possiblility is it could be my HDs which I read causes slow writes not sure if thats true though. point me in the right direction so I can fix this issue as I don't want to move to the dark side (Windows) .
So i am very new to linux based OS. Just started getting used to the terminal. but my problem is i am trying to install a game on steam and it is downloading very slow. i am used to getting close to 700 kb/s on windows 7 but on ubuntu 11.04 i am only getting 170-180 max. now i have searched all over and tried to fix it on my own but i just cant figure it out and am getting very frustrated. so if anybody has an idea as to how to fix this it would be greatly appreciated. (have looked through the forum by the way but as i said im new to linux and im not actually sure if im looking at the right things) but im using a wired connection. it says im connected to something called auto etho. and there is something called a loopback connection or something like that.
I'm running 11.04. I have brought a new WiFi adapter, ralink rt2070. When I browse the internet, it takes a long time to load a webpage. When I download updates, it goes at 3,060 BYTES a second. Is there any solution? I'm using the default rt2800usb driver.
I am experiencing very slow speed with the Intel 5300AGN on a Dell Studio XPS notebook and the iwlagn driver. I'm using Fedora 12 with all the latest updates available. When connecting to a G network with WPA2 security, everything goes fine at "normal" speed. When connecting to a N network with WPA2 security, the download speed falls between 0 k/s and 20 k/s max. The connection speed (as stated by Network Manager and iwconfig) is between 0 kb/s (?) and 11 Mb/s during the same session. I'm can't connect through ssh or download with scp (stalled). Web pages take a lot of time to render.
When connecting to the same N network on Window 7, everything runs fine enough. Every N network I try is the same story. Works fine on windows, badly on F12..
I had a F14 samba server working flawlessly now for a quite time. Unexpectedly about a month ago the write speed slowed down around 64kbit/s and that's really slow. I haven't changed any configs, only updated the server. I've troubleshooted this from many angles: -It is not a network issue because sftp writes are good. -It is not a RAID1 issue because write speed from another directory (locally) are good. So basically samba is the only thing left.
Here's example from smb.conf: [MyShare] comment = My share path = /mnt/RAID_share writeable = yes browseable = yes writelist = +smbuser
Here's a snip from logs today: [2011/08/04 09:04:27.509273, 1] smbd/server.c:267(remove_child_pid) Scheduled cleanup of brl and lock database after unclean shutdown [2011/08/04 09:04:47.526336, 1] smbd/server.c:240(cleanup_timeout_fn) Cleaning up brl and lock database after unclean shutdown [2011/08/04 09:17:57.634660, 1] smbd/server.c:267(remove_child_pid) Scheduled cleanup of brl and lock database after unclean shutdown [2011/08/04 09:18:17.635196, 1] smbd/server.c:240(cleanup_timeout_fn) Cleaning up brl and lock database after unclean shutdown .....
I'm rearranging a bunch of disks on my server at home and I find myself in the position of wanting to move a bunch of LVM logical volumes to another volume group. Is there a simple way to do this? I saw mention of a cplv command but this seems to be either old or not something that was ever available for linux.
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 220.127.116.11-0.1-desktop x86_64 the plasmoid-networkmanagement was replace by NetworkManager-kde4. This improved flow with,
I recently got my D-Link DWA-556 pci card working with my new desktop with Ubuntu 10.04 64-bit. Connection speed is good, but local network file transfer speeds are pitiful. I'm trying to copy some files from my laptop(also running 10.04) and I'm getting around 300-500 kb/s, which is actually lower than my typical download speeds. Anyone know what the problem might be? output of iwconfig is this:
I just noticed that files are transferring between my two computers at no more than 11.3Mb/s no matter what I do.
I regularly use sshfs to mount a drive on my main computer. But after noticing a dismal speed of 10Mb/s when copying a file, I thought maybe sshfs is slow. So I tried scp, and I'm getting 11.3Mb/s with scp. Using the blowfish cypher gave me no change to this, still exactly 11.3Mb/s.
I have a Gigabit network except for the cable, which is a 10meter, 100Mb/s cable. I have a custom modified sysctl.conf file which I'll post here if needed.
Is there anything I can do about this pathetic speed ? Maybe a modification to my ssh config ? sysctl ? anything ?
Any command line tool to measure the network speed between my two linux servers without taking disk speed into account? My network is supposed to be 100Mb, but it doesn't feel like that so I wonder where the bottleneck is. The numbers that I see doesn't correlate well to that. So I'd like to know the speed network card to network card.