Ubuntu Networking :: Slow Network In When Copy Large Files From Main Desktop Pc To Mediaplayer?
Dec 28, 2010
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
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?
sometimes when transferring large files using scp between my desktop running maverick and other servers running Ubuntu, Debian or CentOS, I get the following error message: 77% 258MB 11.3MB/s 00:06 ETAReceived disconnect from xxx.xxx.xxx.xxx: 2: Packet corruptI've found a seemingly related bug report on launchpad here: but the provided "ethtool" fix did not help. I'd be most grateful for any ideas on how to solve this issue. Some more info:Linux lotus 2.6.35-22-generic-pae #35-Ubuntu SMP Sat Oct 16 22:16:51 UTC 2010 i686 GNU/Linuxlspci | grep eth -i00:19.0 Ethernet controller: Intel Corporation 82567LM-3 Gigabit Network Connection (rev 02)
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:
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 Ubuntu on both my laptop and desktop machines, both are connected to the same network. I back up the laptop to the desktop by running the following on the laptop:
rsync -avv --stats /home/alisdt alisdt@xxx.xxx.xxx.xxx:/home/alisdt/laptop_backup (with the IP address of the desktop instead of the many x, obviously). Whenever rsync hits a large file (greater than a few MB), the network use rapidly drops to ~60KB/s (that's kilobytes not bits). When I copy the same file to the same place using scp, I get > 500KB/s throughout the transfer. Things I've tried:
* mounting the desktop home dir on the laptop using SSHFS -- a simple file copy is fast, rsync is still slow * ditto with NFS * rsync --whole-file option, in case the delta-transfer algorithm was choking on large files * rsync --inplace option * HPN-SSH (http://www.psc.edu/networking/projects/hpn-ssh/) to enable dynamic window and unencrypted bulk transfer, just in case it was some ssh bottleneck I think it's either an rsync application problem, or a network problem that is only affecting rsync. Any ideas, or other ideas of what I can try to debug? In case it's relevant, I'm using 9.04 on both machines. (A standing bug prevents me from upgrading the laptop, and I haven't bothered to upgrade the desktop).
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.
I'm running UNR Karmic on an EeePC 1008HA and I'm trying to move my save files for one of my N64 roms to my main desktop. The problem is, I can't find where Mupen64Plus stores these save files, and the .mupen64plus folder won't show up at all in my home folder, and even on my file system. Note #1: I am looking for the actual save files, not save states, although that would be nice. Note #2: Hidden files and folders view was turned on.
on my dell xps M1530 dualcore duo 2.2GHz 4GB ram 500GB harddisk suse 11.3 KDE 4.4 and KDE4.6beta1, when I copy big or a big number of files (20 or 30 files 500MB each) dolphin slow wildly down, especially when I copy from a smb:// to my disk, dolphin start immediately to copy but when I click on a tab or a folder (a one that I didn't opened before) dolphin shows it to me after a couple of minutes, is it possible to solve??
just installed ubuntu couple of days back on my netbook. I am still a beginner, enjoying my adventure exploring ubuntu. I have another desktop which runs on XP. I am able to access XP shared folders through my netbook(linux). However, i wanted to copy files from XP infact folders using TERMINAL in my netbook, not copy and paste using my mouse. Are there any commands for it?
I am attempting to setup a network to network VPN tunnel between our main office and a temporary location. This location need full VPN access back to the main office's network.Anyhow we have spent about 3 solid days attempting to make this work without any great success. Here is our network scheme for these two devices.
Network A (Main Office) (OpenBSD using isakmpd) Network: 172.16.8.0/24 External IP: 1.1.1.1 (obviously not the real IP)[code].....
I tried using ssh between my netbook and desktop, but it was going to take around 30 hours to transfer 39GB over the home network. Also SSH is very sketchy and often drops connections.I've been messing with it all day and I'm quite frustrated.What I'm looking to do is use my netbook as more of a primary computer and the desktop as a storage computer. Not quite a server, because I'd like to still keep a GUI on it. I'd like to be able to keep my music and movies on the desktop and stream them to the netbook (SSH sucks for this, always drops connections). I've already set up the web client for Transmission bit torrent client so I can torrent on a machine that's almost always on and connected.
Is there a better setup for all of this? I like the netbook because of the portability; I like the desktop because it's always connected (for torrents) and it has a larger storage capacity. It would be mainly used around the house. I would like to back up a file or two while abroad, but I'm not looking to stream music while I'm across town or anything.
I'm trying to copy a sample set of files/pictures to a directory on my desktop. For my sample from /home/user/pics containing 7,000+ pictures, I have a desired list of:
Code:
user@computer:/home/user/pics$ ls | tail
I use that to generate a list of a few files that I'd like to move to my desktop. I tried:
Code:
user@computer:/home/user/pics$ ls | tail | cp /home/user/Desktop
I thought that might dump the tail list of files for an argument in the cp command, but no luck. I then tried:
Code:
user@computer:/home/user/pics$ ls | tail | cp . /home/user/Desktop
I have Fedora 12 (with all the latest patches, including the 2.6.31.6-162 kernel) installed on a new Supermicro SYS-5015A-H 1U Server [Intel Atom 330 (1.6GHz) CPU, Intel 945GC NB, Intel ICH7R SB, 2x Realtek RTL8111C-GR Gigabit Ethernet, Onboard GMA950 video]. This all works great until I try to transfer a large file over the network, then the computer hard locks, forcing a power-off reset.
Some info about my setup:
[root@Epsilon ~]# uname -a Linux Epsilon 2.6.31.6-162.fc12.i686.PAE #1 SMP Fri Dec 4 00:43:59 EST 2009 i686 i686 i386 GNU/Linux [root@Epsilon ~]# dmesg | grep r8169 r8169 Gigabit Ethernet driver 2.3LK-NAPI loaded
[code]....
I'm pretty sure this is an issue with the r8169 driver (what I'm seeing is somewhat reminiscent of the bug reported here). The computer will operate fine for days as a (low volume) web server, and is reasonably stable transferring small files, but as when as I try to transfer a large file (say during a backup to a NAS or a NFS share), the computer will hard lock (no keyboard, mouse, etc.) at some point into the transfer of the file. It doesn't seem to matter how the file is transferred (sftp, rsync to NFS share, etc.).
I have two ubuntu boxes. One is a 9.04 desktop edition and the other is a 9.10 server edition I am working on some code that needs to be highly tolerant of bad network connections. It sends transactions to a central database, but when the network is not available, it caches them locally to retry later.
I have the code working beautifully on my desktop box. but when I test it on this other box (the one running server edition) there is a HUGE DELAY every time it tries and fails to send a transaction to the database when the network is down.
I tested a little further, and I found that if i unplug my network cable and run ping somehost on the desktop, it fails instantly saying "ping: unknown host somehost" But if I unplug the cable on the server box and run the same ping command it lingers for about 40 seconds before the ping fails.
Does anybody have any idea why this might be happening? Is this a 9.04 vs 9.10 difference? Is this a desktop vs server difference? Is there some package I can install, or some config setting I can change that will make the server box insta-fail just like the desktop does?
how to copy files over my network between my two computers.
I have done it before, but don't remember all the things I had to go through to do it.
None of the instructional things that I have found has given me actual instructions that I understand.
Actually I have not even found instructions for using scp that I can understand. I have all ready done this in the past, yet with 30 years experience with computers, a bachelors degree in computer science, 20 years experience with linux I still cannot understand anything that I have found that tells how to do this.
I have two problems.
(1) the actual syntax of scp. None of the instructions I have found tell what anything is in their examples.
They might say:
scp blah blah yadda yadda zonk zonk.
They don't bother to tell me what blah blah is or what yadda yadda is, or what zonk zonk is.
(2) Also none of them tells what has to be set up in configuration files for things to work. For example one of my computers is named KING, and one is named QUEEN. There is probably something on computer KING that tells what QUEEN is. I don't know what this configuration file is, so of course I can't put in the entries that would do the job.
So where are some instructions that I might find for doing this copy of files over my network of two computers?
I have have ubuntu 10.10 at work hooked onto a Windows Server 2003. I have pretty much everything working peachy except I can't copy files onto the network drive. When I start my computer, i have to manually go to network places and navigate around until i find my company share drive and then its mounted for the rest of the day. I can read files from the share drive and oddly enough save documents through programs like gimp and open office, however if i go through nautilus to try and copy a file from my desktop to the company share, it won't let me. It just says "Error while copying 'yourfile'" and the details just say "invalid argument."
I am losing network bandwidth and I am quite frankly I am not sure why, I don't have allot memory 495.6Mib
But I clean my PC every few days "BleachBit"
I have read some where on the magazine Network receiving suppose to be higher. so how can I fix this issue please i am having allot problems, u use cable from Comcast
I am not quite sure what Information you might need from me to give.
I'm trying to copy a 6Gb file across from my laptop to an external usb drive but it quits at about 4.2Gb every time with a "file size limit exceeded" error. i have checked the output of ulimit -a and there is no limit there on the file size. I'm using the Slax live Cd for this as it always gets the job done
Im trying to setup samba so that i can copy some files from my windows 7 machine over to the drive on the opensuse machine running 11.2. i believe i set everything how it should be set up but no matter what i do i cant write filesfrom the windows machine. Here is my smb.conf
# smb.conf is the main Samba configuration file. You find a full commented # version at /usr/share/doc/packages/samba/examples/smb.conf.SUSE if the # samba-doc package is installed. # Date: 2009-10-27 [global]
I have some large image files that are 30 gig and more. I am running Ubuntu 9.10 whenever I try to copy one of these files to another drive I get a error saying the file is too large. I am trying to copy from an external Hard Drive or a slave drive does the same thing. I have a friend who has expressed the same issue. This must be a widespread bug.
I want to copy about 40GB - to a partiton. There are two hard drives in my box one won't boot but I can aaccess it and mount partitions and I aim to move data from it to a new bootable hard drive. Doing a simple cp copy command may not be the best way to copy and paste such a large chunk? Also I want to backup the data I plan to copy/paste using a USB hard drive to backup. But I could also paste data from the backup to the new drive instead of from old internal hd to new hd. - that's another option.
I have installed opensuse 11.3 64 bit. For many years was able to connect to a file server within our domain via konqueror in all previous versions of opensuse using: smb://user@server.ip.adress/userdata/user_name/ This would ask me a password and then I would be able to move, read, create and delete files. I never configured samba on the linux client because this method always worked. However very recently (I suspect since I installed 11.3) I am facing a problem I cannot resolve. I can still log in, browse the remote folder, read files, create new ones (for example a txt file), delete them, but I cannot copy into that remote folder files larger than about 20KB (I try copying or moving files by dragging them from my desktop into the konqueror window that shows the remote folder contents).
Small files are OK, but for files are larger than ~20KB there is an error saying: Could not write to file smb://{path_to_my_file_in_the_remote_folder}. Strangely, the file is nevertheless created in the remote folder, but with a fixed length size of 32KiB.
i don't know if this is a slackware related issue but i have the following problem.I'm running a slackware64-current on my system. For my private data I'm using a QNAP NAS (Some ARM CPU with linux kernel 2.6.22), the file shares provided by NFS. I mount them withmount -t nfs 192.168.0.2:/Public /mnt/qnapWorks fine, no problems.But now, if i try to copy some large files ( > 1GiB) to the NAS share, sometimes the systems completely freezes during the copy process. I have to do a hard reset to bring the system back to work
Ok so I'm running Mint (not full Ubuntu), and I'm not sure if this is a problem with the FS, Kernel, what not.I'm running Linux Mint 9 - x64 - kernel 2.6.35.14 - and when I did a large file copy operation (9GB) it froze up my system until the copy operation was done. I couldn't even use Pidgin, Mozilla, or anything, when trying to open up another Terminal it froze as well.
is it would be possible create a Ubuntu dvd that contains the ubuntu server desktop and alternate install opptions, as well as all four main desktop environments (gnome, kde, xfce, lxde) and unity. since much of the data is redundant between each version cd's it would probably all fit on one disk. then all that would be needed is two disks one for 32 bit and another for 64 bit. i really think that this could work.
I have in my pc (ubuntu 10.10 32 bit) a folder with about 10.000 files. It is a samba shared folder and so far I could browse fast and easily those files in another old ( Pentium4 1,5Ghz) PC with WinXP. I installed ubuntu 10.10 but the browsing now is toooooooo slow , although the old Pc's performance is considerably faster than before (when I had WinXP). Also, although the old PC's speed is satisfatory now, would it become even faster if I installed an older ubuntu distro?
Is there a clever way to monitor the progress (as percentage or hash) of copying a large file (using pv could be an option)?Like monitoring the progress of a copy command such as this:Code:cp linux.iso /tmp/
I have a 500 gig external usb, and a few 8 gig flash drives. If i copy a file (say a movie or large file) from my primary hard drive (80 gig WD formatted to ext3) to a usb drive it transfers very slowly, about 2 mb/s. But if I copy a file off my secondary internal drive (40 gig seagate formatted to ntfs) it transfers full speed (25-30 mb/s) Its also very slow transfering between internal hard drives (again, no more than 5 mb/s) I checked and as far as i can tell both drives are running in DMA mode. Any reason my primary seems to be causing this bottleneck? it seems to preform fine otherwise (as it is the drive with my ubuntu installation on it)
