Ubuntu Networking :: NFS File Transfers Are Very Slow?

Jun 10, 2010

I have a server set up as an NFS share, and the share mounted on my laptop. Using linksys wireless g router and 15mb internet connection. Laptop is on wireless connection and server is wired.While transferring files from the laptop to the server I only get about 55kb/s. Is this normal for wireless g?

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Networking :: Slow File Transfers Using Samba?

Feb 2, 2010

I am running Samba on a debian Lenny box on a wireless home network. I find that file transfers to the samba share are very slow. It takes over a minute to copy a 40MB file to the linux box, but only 20 seconds to copy the same file to a windows XP box on the same network.

Anyways, I could use a little direction on how to proceed with this, I'm really not sure where to start,

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Ubuntu Networking :: Slow File Transfers (FTP, SCP) With Intel Gigabit Or Atheros WLAN?

Nov 16, 2010

I just installed ubuntu as my primary OS, but I have the disk with XP on it and I don't want to go back, but I need faster network connectivity. I have a T60p with Intel Gigabit jacked into my Gigabit router which also has my desktop (running XP) and my NAS. If I FTP files from my NAS (or SCP), I get transfer speeds around 250-500 KB/s (which is not very fast). On this same switch, from my XP desktop I get transfer speeds around 12 MB/s. I get the same speeds using my 802.11n card (Atheros) as with the ethernet NIC (250-500 KB/s).The drivers for the ethernet card and the atheros card are e1000e and ath9k respectively.I have disabled IPv6. Since the problem occurs using either interface, I am just going to concentrate on fixing it for the Ethernet interface (since I believe it to be a systemwide problem).

Code:

skinnersbane@albert:~$ sudo ethtool eth0
Settings for eth0:
Supported ports: [ TP ]
Supported link modes: 10baseT/Half 10baseT/Full

[code]....

Clearly my card is running at Gigabit, but why the bad transfer speeds? I am using filezilla for FTP (technically FTPES). I closed every other program. My CPU utilization does seem high and I wonder if this is part of the problem. I had no problems with throughput using either interface in Windows XP just one week ago.

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Ubuntu :: Slow File Transfers On 10.10?

Oct 30, 2010

Has anyone else noticed that file transfers on Maverick are significantly slower than on Lucid? A review of Maverick on Tom's Hardware finds that it is considerably slower. My own test says: On 10.10, file copy between two NTFS drives maxes at 30 MBytes/s; on 10.04.1, the same operations clock in at 40 MBytes/s. Both drives are capable of rw speeds of 70-90 MBytes/s, which I got on WinXP, and hdparm's cached read results back that up.

why file transfers are so slow, and especially why Maverick is even slower than Lucid?

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Ubuntu :: Significantly Slow File Transfers On 10.10

May 25, 2011

Has anyone else noticed that file transfers on Maverick are significantly slower than on Lucid? A review of Maverick on Tom's Hardware finds that it is considerably slower. My own test says: On 10.10, file copy between two NTFS drives maxes at 30 MBytes/s; on 10.04.1, the same operations clock in at 40 MBytes/s. Both drives are capable of rw speeds of 70-90 MBytes/s, which I got on WinXP, and hdparm's cached read results back that up. Any ideas why file transfers are so slow, and especially why Maverick is even slower than Lucid?

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Fedora :: File Transfers (cp, Mv And Rsync) Slow System Tremendously

Aug 24, 2011

When ever I transfer large files using cp, mv, rsync or dolphin the system will slow down to the point that it's unusable. It will sometime hang completely and not accept any input until the file is transferred. I have no clue what could be causing this problem but I know it shouldn't be happening.I am using Fedora 15 (2.6.40.3-0.fc15.x86_64) with KDE 4.6. have a Phenom II 955 processor, 6 GB of system ram and the OS and swap file is on an 80 GB SSD. Copying files in the SSD doesn't cause any problem, but moving files between my other two large HDDs causes the extreme slow down. Using htop I can see that my system load jumps to between 3 and 4, but my RAM and CPU usage stays low during the transfer. Here are two commands that take about 10 mins to run and make the system unusable while it's running. It usually transferring around 2-20GB worth of data during the transfers:

cp -a /media/data.1.5/backup/Minecraft/backups/* /media/data.0.5/backup/Minecraft/backups/
rsync -a /media/data.1.5/backup/ /media/data.0.5/backup/
/media/data.1.5/ is the mount point for a 1.5 TB internal SATA drive, and /media/data.0.5/ is the mount point for a 500 GB internal SATA drive.

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Ubuntu Servers :: Samba Configuration - File Transfers Between The Machines Are Extremely Slow

Nov 1, 2010

1. When I'm not logged into the server, only the shares are visible on my Windows computer. Clicking on the share folder displays an error message. As soon as I log in at the server, the files within the shares become accessible on the Windows box.

2. File transfers between the machines are extremely slow. Watching the system monitor, there's a brief burst of network activity followed by 10-30 seconds of nothing...on a gigabit network, the effective transfer rate is ~120kbs. There's no other network activity going on that would account for this behavior.

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CentOS 5 Networking :: Slow Data Transfers W/ Smb, Scp?

Apr 14, 2009

I am having a problem with slow data transfers with both Samba and scp. I have gigabit NIC's on both all three machines that I am transferring to and from, connected to a gigabit switch. My data transfers under both smb and scp average around 21 MBit/s, (I am using nload to monitor transfer speeds).The machines are configured as follows,1) desktop

AMD Athlon 64 X2 6000+
6 gig Corsair memory
Realtek RTL8168C(P) gigabit NIC (on board)

[code]....

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Ubuntu :: 11.04 - Slow Transfers To External HDD

May 31, 2011

I am transferring 80gb of files from my computers hard drive to an external drive and while the speed should around 25mb/s, it's going at exactly 1mb/s. Ubuntu 11.04 64-bit on a Mac Mini, 8gb RAM.

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Ubuntu Networking :: Large File Transfers & How To Set Up A Netbook Desktop Combo

Jul 11, 2011

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.

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Ubuntu :: Embeded - Nas From Usb Stick Slow Transfers

Nov 21, 2010

With Ubuntu 10.10 server installed on an
- AMD Athlon II X2 235E CPU AM3
- 2GB DDR3

Installed on a software raid 1 of 16 GB usb sticks that can sustain 24MB/s read and 13MB/s write rates
running
- ssh
- zfs-fuse installed from apt
- samba

With the zfs using the sata II controller, with a 2TB, 1.5TB and 500GB in a raidz1 (I know, it's uneven, I'll be changing them all to 2TB once I get the data off those drives).

However I'm experiencing a REALLY REALLY exceptionally slow zfs performance of only 600KB/s transfer rate even when using the command:

To test. CPU usage is only at 25% (with dedup=on) however I notice that the usb sticks are regularly transferring data during this write to the zfs pool. Also when doing a zpool scrub it completes 9.6GB of scrubbing in well under 2 minutes. Admittedly it shouldn't actually be doing much as no data was changed by me while the 3rd drive was unavailable.

I'm thinking that there is some data being temporarily saved to the main system drive (usb sticks) and then transferred to the pool, and this is causing a bottle neck. Note both 16gb usb sticks are plugged in to the same usb 2 host controller, but the combined write bandwidth of those sticks is not enough to saturate a usb2 bus.

How to track down this bottle neck?

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Networking :: Large File Transfers Start Fas Then Drop To A Crawl?

Jul 19, 2010

I need to transfer 330G of data from a hard drive in my workstation to my NAS device. The entire network is gigabit and being run with new HP procurve switches. All machines have static IP addresses. The NAS is a Buffalo Terastation PRO which has the latest firmware, is set to jumbo frames, and has just been upgraded with 4 brand new 500G drives giving us a 1.4TB raid 5 setup. My workstation is a dual Quad core xeon box running on an Intel S5000XVN board with 8G of ram. My OS is Ubuntu 10.04 x64 running on a pair of Intel X25 SSDs in a raid mirror. The data drive is a 500G SATA drive connected to my onboard controller. The file system on the SATA drive is XFS. This problem was ongoing before I got my new workstation, before we had the GB switches, and before the NAS got new drives. When I transfer a small file or folder (less than 500M) it reaches speeds of 10-11 MB/sec. When I transfer a file or folder larger than that the speed slows to a crawl (less than 2MB/sec). It has always been this way with this NAS. Changing to jumbo frames speeds up the small transfers but makes little difference in the big ones. I verified with HP that the switches are jumbo frame capable.

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Ubuntu Networking :: D-link DWA-552 Master Mode On 10.04 - File Transfers Or Bandwidth Consuming Processes

May 20, 2010

after successfully configuring the dwa-552 to work in master mode in ubuntu 10.04 (ath9k driver) I ran some file transfer tests. The download speed is very good (~50mbps) but the upload speed spikes at about 10-20mbps for the first few KB and then it's nonexistent (0-1kbps). This only affects file transfers or otherwise bandwidth consuming processes. Normal web browsing or ssh is not affected. After running a speedtest of my internet connection which is routed through the AP I could upload to the internet with 1mbps which is my inet connection maximum so apparently this is not affected. Tried the same file transfers with netcat to eliminate any other factors and had the same problem. dmesg and hostapd debug did not report anything unusual

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Ubuntu :: 10.04 Hangs During Large File Transfers?

Aug 1, 2010

I recently built a home media server and decided on Ubuntu 10.04. Everything is running well except when I try to transfer my media collection from other PCs where it's backed up to the new machine. Here's my build and various situations:

Intel D945GSEJT w/ Atom N270 CPU
2GB DDR2 SO-DIMM (this board uses laptop chipset)
External 60W AC adapter in lieu of internal PSU
133x CompactFlash -> IDE adapter for OS installation
2(x) Samsung EcoGreen 5400rpm 1.5TB HDDs formatted for Ext4

Situation 1: Transferring 200+GB of files from an old P4-based system over gigabit LAN. Files transferred at 20MBps (megabytes, so there's no confusion). Took all night but the files got there with no problem. I thought the speed was a little slow, but didn't know what to expect from this new, low-power machine.

Situation 2: Transferring ~500GB of videos from a modern gaming rig (i7, 6GB of RAM, running Windows7, etc etc). These files transfer at 70MBps. I was quite impressed with the speed, but after about 30-45 minutes I came back to find that Ubuntu had hung completely.

I try again. Same thing. Ubuntu hangs after a few minutes of transferring at this speed. It seems completely random. I've taken to transferring a few folders at a time (10GB or so) and so far it has hung once and been fine the other three times.Now, I have my network MTU set from automatic to 9000. Could this cause Ubuntu to hang like this? When I say hang I mean it freezes completely requiring a reboot. The cursor stops blinking in a text field, the mouse is no longer responsive, etc.

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Ubuntu Networking :: Can't Do FTP Transfers

Dec 31, 2010

A little over a year ago I was using SCP to successfully transfer large files over my LAN (exact same hardware). I can't seem to do this any more, and I'm not sure why.I think it's either something with iptables, or a network card driver problem. I use the same driver for both computers (b43 wireless). I can't do FTP transfers either. They start going, but quickly stall. I've used the Firestarter (iptables gui) to allow all the correct connections.One last thing: When I tried to connect to ssh using an alfa wireless card (not sure of the drivers), I couldn't even connect to ssh period. Same settings were used.

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Ubuntu Networking :: Rt2870sta Driver - Transfers Slowing And Stopping Regularly

Jul 28, 2011

I have a tenda wireless adaptor running on 11.04 natty. The USB id is: 148F 3070

Using the already installed drivers rt2800usb it can connect to all 13 channels but is very flaky, transfers slowing and stopping regularly. The rt2870sta driver is a lot more stable, but it will only connect to channels 1-11, but I need to use channel 13 due to massive wifi congestion on other channels...

I've tried iwpriv but it says there are no ioctls for the device.

Is there any way to get the installed driver rt2870sta to scan and connect to channel 13?

I've also tried to install the latest drivers from the ralink website: rt2870sta says it can see all 14 channels, but fails to scan. I also tried rt3070 driver but I cannot insmod as there are errors...

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Networking :: Pure-ftpd Passive Transfers Not Working?

Jun 4, 2010

I have a dns-323 linux device that's running pure-ftpd with SSL/TLS authentication. Pure-ftpd is sitting behind a linksys router with IP 192.168.1.51. Pure-ftpd is configured for port 8021 and passive port range 55562-55663. The linksys router is configure to forward port 8021 and the passive port range to 192.168.1.51.

From outside my network I can connect to the ftp server using the WAN address of the router. I'm using filezilla 2.2.32 as my client and I choose FTP w/ explicit TLS (no other option will connect). The client will authenticate successfully with pure-ftpd but once it sets up the passive data connection and tries to do a LIST of the root directory, there's a timeout. I'm assuming this is because the passive data connection is not working. In pure-ftpd, I tried changing the passive address that it reports, to be the WAN address of the router, but it did not make a difference. I included the log from filezilla below.

[Code]...

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Ubuntu Networking :: File Server On 10.04 Machine - Slow Samba

May 22, 2010

I'm trying to set up a fileserver on my 10.04 machine, and access the files from Windows 7 via wifi. I can see everything alright, but the transfer speed to Windows never gets higher than 70KBps. Both computers can access the web at 800+KBps. I've also checked with an OS X machine on the same network, which was also extremely slow, so I'm fairly sure that the problem is on the server's side.

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Fedora Networking :: Slow File Transfer?

May 7, 2009

I have connected two computers with each other both having fc installed. Now, when I tried to transfer a file from one computer to another using scp command, sometimes the file transfers very slowly and sometimes very fast. I wana know that why it sometimes transfers slowly. By slow I mean much slower than a file downloaded from a dsl.

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Networking :: File Transfer Speed Too Slow ?

Oct 14, 2009

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.

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Networking :: Network File Transfer Slow ?

Feb 20, 2010

Ok, the only thing I remember doing is changing out my hard drive because it went bad. I swapped in a new one and reformatted with Windows 7. (I can hear the boos and hisses as I type) Anyway, now file transfers are exceedingly slow. They are ~10KB/s when they should be ~40MB/s. The odd thing is that it mostly occurs on large files, but not all large files and sometimes smaller files are affected. Copying files from one hard disc to another on the server, as well as copying from the server to Win7. Local files are not affected. The problem does not occur on my laptop which has Slackware Linux on it.

Another thing about the problem is that when I mount a disc image on a virtual drive, access time is very slow and windows explorer is very unresponsive and often locks up completely.

I have a samba server with Slackware Linux on it and a Windows 7 client. DHCP is configured through dnsmasq. (dhpc-host=<mac address>,<computer name>) Every now and again, dnsmasq seems to conk out when I try to access the network with my Win7 machine. I then have to reboot the server, as my only access to it is via SSH and I don't have a video card in it. After the server reboots everything is fine until accessing the network with my Win7 machine conks it out again.

I've tried different MTU settings, different network cards on the Win7 machine(Dlink and realtek), various regedit hacks, but none of them produce any results.

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Ubuntu Networking :: Amazingly Slow File Transfer Over Network, SiS Haunting Again?

May 20, 2010

I've fixed almost everything except this problem. My network card worked fine on Windows but since I switched from Windows, file transfer over the network using my network card is horribly slow, 30kbps max on 100mbps wired connection. I know my network card is working fine, and I'm trying to copy files between my Ubuntu PC and windows PC, I've set up Samba as recommended by these forums, I can transfer files when using wireless connection, but I still can't transfer files at a speed faster than 30kbps on a wired connection.And the funny part is, it's fast when copying files from Ubuntu to Windows but it's slow the other way. And I've tried this with more than 4 different Windows computers.lspci returns this for the network controllerCode:Silicon Integrated Systems [SiS] 191 Gigabit Ethernet AdapterIs there any way of updating drivers or something that I can do to fix this problem

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Fedora Networking :: File Transfer Through Router Slow

Aug 5, 2009

this is all on LAN.Whenever I transfer files through the router A to a pc connected wirelessly, the internet hit the speed of molasses. What can I do to rememdy this? I was thinking about having my fedora box connect wirelessly to the internet, through router A, and then bridge via ethernet to router B and then have my pc always connected to router B, so when i transfer files, router A remains unaffected. Is this correct logic?

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Fedora Networking :: Slow File Transfer With Wlan0

Aug 22, 2010

I am having a problem trying to transfer large file (~700MB) from one station in my home to another. I have 3 PCs hooked up through a router. 1 is wired to the router and the other two are wireless. One wireless is a laptop that has a built-in Atheros wireless card that was supported during the FC13 install. The other wireless has a plug-in wireless card made by Belkin (F7D1101). I had to use ndiswrapper to get it to work on FC13.(BTW all PCs are running FC13)

The one with the Belkin card is, I think, the problem. The one with the Atheros card will transfer files at a rate of about 8MB/sec to the one with the wired ethernet connection. The one with the Belkin card will not transfer at rates over 300KB/sec to either of the other two PCs. I have tried file transfers both encrypted and not and it makes no difference.

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Ubuntu Networking :: Slow File Sharing \ Copy Some Files From Laptop(also Running 10.04) And Getting Around 300-500 Kb/s?

Aug 9, 2010

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:

Code:
wlan0 IEEE 802.11bgn ESSID:"linksys"
Mode:Managed Frequency:2.412 GHz Access Point: 00:1D:7E:59:04:0E

[code]....

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General :: Slow Very Slow File Download On Platform?

Jan 11, 2010

I have good experience in microsoft enviroment, now tiring to use linux, i tried Ubuntu 9.10, OpenSuse on different computers bur there is same big problem: Very slow download speed compared to microsoft.same file at same time downloaded by microsoft winxp toke incomparable short time. for example file 5.5MB attached to e-mail on Yahoo toke ~1minute to download on winxp computer,same file at same computer but with Ubuntu takes more thane 30minutes!

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Ubuntu Networking :: Wifi Is Fast Then Slow Then Fast Then Slow Connect Disconnect ?

May 7, 2010

My wireless seems to be fast for a good 30secs then bang takes good while to load the next page almost as if it's disconnecting and then reconnecting/scanning reconnecting. Why cant it stay connected. I have WAP PSK security here is my network setting please let me know if I should change any of them:(side not is there a way to fix this problem occuring so frequently it says on the wiki that it should only occur once in a whilce https:[url].....

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Ubuntu :: USB Transfers Stop / Start In 10.04

May 30, 2010

When copying files to USB drives, the file progress bar moves it 'bursts', sometimes doing nothing for long periods, then moving forward quickly and stopping again.It's almost like it is showing the transfer to the cache, not the transfer to the actual drive.

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Ubuntu :: Syncing IPhone With Banshee Transfers But Unseen On Device

May 2, 2011

I recently installed ubuntu and noticed somewhere that it says "Now you can say ubuntu has iDevice support out of the box". Naturally i tried, resulting in a music library with all the album artwork mixed up. I've tried to sync a couple of times, even added the repository for libimobiledevice and searched for the newest version (said it was already installed). When trying to sync with banshee (or rythmbox), it says syncing on my screen and on my iphone's screen. After syncing, my iphone updates the library, no new music is discovered. I can also add that banshee discovers 100 extra songs on my iphone.

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General :: Data Transfers After The Transfer Is Completed?

Jul 30, 2010

For example I am copying data to USB-flash drive using some file manager. When the file manager shows that transfer is complete, flash drive indicator continues to light. As far as I know this is some kind of caching system...

1. Is it OK to close file manager when transfer window is closed but the flash drive indicator continues to light (data is still being copied)?

2. Is it better if I turn off this caching technology?

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