Ubuntu :: Fast Copy Stops Slow Other Processes?

Aug 29, 2010

The local files copy speed from one disk to another is satisfyingly 60+MB/s, but this cause problem to other application, windows gray out, firefox freez, basically i have to wait for the copy to end to return to the computer.

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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 :: Internet Connection Very Slow On 9.10 But Fast In XP

Mar 23, 2010

Like the title, that is my problem. I'm using cable modem with 3mbps. It is Linksys Docsis, wired networking. When I download a file using ubuntu 9.10, my latency time (ping time) sky rocketed to 2000ms average, while in XP none of this happens; I tried to download the same file from the same website. In ubuntu 9.10 my network setup will be, well... nothing. I'm using DHCP automatic detection. Same thing in XP.

I don't want to go back and forward using XP for the internet. Funny thing though, none of this happens while I first started ubuntu 9.10. I didn't configure anything with networking. It is the way it is from the beginning. The only thing I tried was ubuntuone. But that like months ago, and the problem I have with slow internet connection only appear this March.

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OpenSUSE Install :: Many Processes Enter In Disk Sleep Mode And Stops

Feb 18, 2010

Many processes enter in disk sleep mode and stops (Hang) and return to work after 10 to 20 seconds.

In System Monitor i get "Disk Sleep" like this:

My PC specifications:
Ram: 4GB
Hard Disk: 1024GB
Processor: AMD Athlon II X2
Display: ATI HD 4670
Motherbord: Gigabyte
System: openSUSE 11.2 x86_64

The problem still exists after system update and i try run other distributions like kubuntu and i don't get this error. I also change Hard Disk but the problem is still ongoing.

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Ubuntu Networking :: Slow Browsing - Fast Download ?

Feb 12, 2010

I'm using wlan and I'm behind a NAT firewall. Downloading with BitTorrent can reach speeds of 1,5MB/s, but browsing is incredibly slow. Chromium/Firefox seems to hang forever on "connecting.." or "waiting for". Sometimes pressing the reload button will speed it up. I have two Ubuntu boxes and they are the same way.

I don't get it, if downloading is so fast, how can browsing be so slow. Yes I have disabled ipv6 in grub and in Firefox, don't know how to do it in Chromium. Have 64-bit Ubuntu. Cnet wlan card using rt61pci module.

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Ubuntu Multimedia :: Video Playback Slow In 10.04 But Fast In 9.04?

May 14, 2010

I have two Ubuntus installed. A 10.04 and a 9.04. In 9.04 if I watch a video in Firefox, it works very smoothly and nicely. Using the "top" command, totem-plugin-vi is using the most cpu time at about 16%, and xorg is using about 5%. But in 10.04, totem is using 72% and xorg is using 26%, and it looks really choppy. I think watching DVDs is the same way. I checked "Hardware Drivers" in the System->Administration menu (in 10.04) and it said "No proprietary drivers are in use on this system." I'm guessing maybe I'm using different video drivers on each system, but I don't even know how to check. and here is an excerpt from lspci:

01:00.0 VGA compatible controller: ATI Technologies Inc Radeon RV100 QY [Radeon 7000/VE]

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Debian :: Fast Bandwidth And CPU But SLOW X11 Forwarding

Sep 26, 2010

I have a fast server running Debian 5 (I tried to upgrade and everything broke.

So I'll stay with Lenny):
Core 2 Duo

When I use the -X command and try and run applications to my desktop, it is VERY slow. Firefox takes 20 seconds+ just for a right-click menu to appear. It is completely unusable because of this speed. And this is after a clean install of Debian 5.

I've tried on multiple clients (Windows and OS X) and it is always slow! Even though both computers and connections are fast. My home connection is 100mbit too....

So the problem is not bandwidth or resources, the problem must be with the server/software? Any ideas why tunneling X11 applications are so slow? Is there an alternative X11 software I could use on the server?

1 thread in FTP to this server gives 10MB/s (100mbit). So X11 should be fast? And btw, I'm tunneling through SSH.

Can figure out why it is so slow?

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Ubuntu :: Samba Slow Writes To Server But Fast Reads

Jul 1, 2010

I have a fileserver running 10.04 server 64bit and samba. I connect it to my desktop which is 10.04 desktop 64bit.I have the server mounted on my desktop in fstab as:// /media/share cifs guest, uid= 1000.Up until 30 June 2010 it was all fine. Now when I write the server it is very slow e.g. 2Mbps though when I read I get >100Mbps so I think my network is still ok. If i use nautilus smb:// I can write at >100Mbps and also read at >100Mbps...So any ideas why the write speed via the fstab mount samba has started to go really slowly in the last couple of days?

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Ubuntu Networking :: Torrents Very Slow While In UTorrent Under Windows 7 Very Fast

Jul 16, 2011

I'm using Vuze clients and torrents are very slow while in uTorrent under Windows 7 they're very fast. How can I fix it?

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Server :: Slow Authentication In Ftp Login / Make It Fast?

Apr 13, 2010

When I'm trying to login to the ftp server with appropriate username and password its taking almost 10-15 seconds to authenticate making the login process slow, even when I'm uploading files its again hanging for 10-15 seconds before completing the job successfully.
Its not like its happening every time, but 7 times out of 10.
Any idea how can make the authentication fast?

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Ubuntu Networking :: Slow Wifi - But Fast Connection On Network Cable

Jan 22, 2011

I have a strange problem that I cannot diagnose -- slow wifi. About two or three weeks ago, I noticed that my wifi began to slow down dramatically. The problem is the same on my ubuntu laptop and my ipad. But when I connect directly to the router with a network cable, my connection is fine. So it is definitely a problem with the wifi signal itself.

What I have done so far:
(1) I checked all of the MAC addresses connected to my wifi. I identified my tivo box, laptop, and ipad. Nothing else.

(2) I used [I]wifi analyzer[I] on my android phone and selected an unused wifi channel (channel 8).

(3) I changed the username/password on my wifi signal. I also changed the password for my router's admin privileges.

(4) I restarted my router and computer.
None of this helped.

I am using a Netgear WGR614 wireless router.

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OpenSUSE Network :: Slow Internet Browsing / Make It Fast?

Oct 6, 2010

I'm running 11.2 on a Dell Latitude D630. Everything has been great other than issues with Suspend and hibernate not working correctly. However after about a month of use browsing the web has really slowed down bad. It doesn't seem to matter if it's in Firefox or Chrome either. I am using a wireless connection that is getting the signal at 85-95%. Even though I still tried using a direct cat-5 connection to the router and it was still slow as well. I have the fastest broadband connection my cable offers and my windows boxes on the same network are still flying.

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CentOS 5 :: Duplicate / Multiple Processes - Server Really Slow

Mar 28, 2010

My server is really slow. When I did a top -c or ps aux, below shows up. Shouldn't there be only one? Shall I kill all those processes and leave only one?

3135 nobody 15 0 15900 5232 1860 S 0.0 0.1 0:00.17 /usr/local/apache/bin/httpd -k restart -DSSL
3173 nobody 16 0 15900 5244 1848 S 0.0 0.1 0:00.05 /usr/local/apache/bin/httpd -k restart -DSSL
3174 nobody 15 0 15900 5232 1860 S 0.0 0.1 0:00.15 /usr/local/apache/bin/httpd -k restart -DSSL
5153 nobody 15 0 15900 5228 1860 S 0.0 0.1 0:00.04 /usr/local/apache/bin/httpd -k restart -DSSL
7598 nobody 16 0 15900 5228 1872 S 0.0 0.1 0:00.20 /usr/local/apache/bin/httpd -k restart -DSSL .....

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Software :: Server Gets Slow And The Load Goes Up, There Is A Bunch Of Processes Call Mi_dmonq Running?

Oct 17, 2010

I am running Red Hat Enterprise Linux Server 5.1. I notice that when my server gets slow and the load goes up, there is a bunch of processes call mi_dmonq running. Does anyone know what this process does? I tried to find it online but didn't find anything. Also, I tried to find the binary on the server but find doesn't return anything. Does anyone know what it is?

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Ubuntu :: Terminal Command Sudo Dpkg "--configure" "-a" Processes Halfway And Stops?

Nov 16, 2010

is there any other terminal command that will have a similar result to help me get update manager working in 10.10.

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Networking :: Slow Outbound - Fast Outbound Cross Country Connection

Jun 2, 2011

I'm having an issue where a server in CA (1000/full) and in VA (100/full) have very lopsided data transfer.

CA -> VA with iperf shows ~20Mbps
VA -> CA with iperf shows ~93Mbps

If we change the CA server to 100/FULL, transfer speed is 93Mbps both ways.

Some tuning was done to TCP window scaling parameters, but it won't correct the issue, just improve the CA -> VA numbers to what is listed above. I will say, turning TCP window scaling OFF will lower the transfer speed both ways to < 20Mbps.

The only clue I have when looking at wireshark dumps is that the window scale going OUT would never go past 10240 (scale is 8, so 2^8 x 40bytes). In the opposite direction, the window size will go above 3MB (scaled).

It is not a bandwidth problem as iperf with UDP shows 93Mbps both ways. Local transfers (CA 1000/full to CA 100/full) show full speed both ways, so I feel it is strictly related to TCP window scaling.

RedHat 5 64-bit on both sides. Any ideas why it won't scale above 10240?

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Ubuntu :: USB To HDD Copy Is Too Slow In 10.04 Beta

Apr 17, 2010

i recently upgraded from 9.10 to 10.04 Beta. i am using 64 bit OS. in my computer USB to HDD copy is very much slow. generally i get 20-25MBps copy speed. but from USB the speed gradually goes below 2MBps.

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Ubuntu :: USB To HDD Copy Is Too Slow In 10.04 Beta?

Apr 17, 2010

i recently upgraded from 9.10 to 10.04 Beta. i am using 64 bit OS. in my computer USB to HDD copy is very much slow. generally i get 20-25MBps copy speed. but from USB the speed gradually goes below 2MBps.

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Ubuntu :: Slow Copy To XP Shared Folder?

Jun 9, 2010

lately, after shifting to 10.04, when I copy files from the Ubuntu to my XP shared folders, it goes very very slow. i restarted the router and nothing changed. I can see the folders, but the copy speed is still very slow.

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Ubuntu Servers :: Slow LVM2 Lv-to-lv Copy

Jul 16, 2011

I've got three disks together on a *home* server that constitute four LVs.The two are the root and swap LVs installed by the Ubuntu 10.04.2 LTS installer on the OS drive (250 GB VG: Beta). The third & fourth LVs I made of two physical volumes (640 GB and 200 GB VG: Data) and mounted each inside /torrent. All are ext4.

I'm migrating lots of large files from /home to inside of /torrent, but I'm seeing EXTREMELY slow speeds (700KB/s).I'll admit this is my first time using LVM, and I tried it only because of the numerous smaller drives I have sitting around that weren't getting used. I didn't expect such a large drop in speed.

Here's a more technical review of the setup:


me@Beta:~$ sudo pvdisplay
[sudo] password for me:
--- Physical volume ---
PV Name /dev/sdb
VG Name Data


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Ubuntu :: XP Installed Under Virtual Box And The Copy Process Is Very Slow

Apr 4, 2010

I have XP installed under Virtual Box and the copy process is very slow, I've spent 20 minutes to copy 3Gb iso image from an external Hdd. I a way to speed up this process?

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Ubuntu Installation :: Fresh And New Copy But Is Kinda Slow?

Oct 11, 2010

So I updated the beta to the final release perfect 10 .And it is awesome , but it is kinda slow, so my question is how Can I purge a new clean copy of Ubuntu with the original settings and defaults programs?

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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?

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OpenSUSE Hardware :: USB Copy Too Slow / Way To Determine It

Apr 14, 2010

Few days ago formatted away winxp at office and installed OpenSUSE 11.2. In winxp USB speed was fine (actually full speed of my SDHC card using card-reader), but in SUSE it's about 1.13 MB/s.

The strange thing is - I have the same version of SUSE at home, on both desktop and laptop, with the only difference in kernel - at home both are default kernel, and desktop kernel at office.

Should I try default kernel and is there any way to determine the source of the problem?

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Ubuntu :: Torrent Will Start Slow And Then, After A Minute Or So, It Slows Down And Stops Saying "starting Up"?

Dec 30, 2010

After upgrade from 10.04 to 10.10 on my dual core, 64-bit machine, my miro software has problems downloading torrents. Torrent will start slow and then, after a minute or so, it slows down and stops saying "starting up". It appears there is a bug report, bug 668615, but I've found no fix.

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Fedora :: Extremly Slow Copy Speed (50K/s) / Make It Up?

Feb 17, 2011

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.

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OpenSUSE :: Dolphin Slow Wildly Down When Copy Files?

Dec 1, 2010

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??

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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:

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


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OpenSUSE Install :: Installation Progress Stops In 88% / Message Error / Error Copy Live Image To Disk

Oct 12, 2010

Greetings from Greece. I tried to install opensuse 11.3 in an empty disk . Unfortunately the installation progress stops in 88% and the message error says "error copy live image to the disk". I have burn two different cd but the result is always the same.Is it a hardware problem or the cd is not correct?I had the 11.2 version in the same pc without any problem for a long time.

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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

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