General :: Extremely Slow Write On Disk With High CPU Usage / Make It Up?

Sep 4, 2010

My problem is extremely slow write on hard disk and 100% cpu usage and it happens when I want to write something on the hard derive not any other external derive.

Tried a fresh ubuntu install. No change. I am not even sure if it is a software or hardware problem.

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OpenSUSE Install :: Extremely High CPU Usage?

Mar 18, 2011

However, I would like to ask if anyone else is experiencing Higher than normal CPU usage with openSuSE 11.4 PR?? My system, which is probably similar to others, increases the air flow with the fan on the CPU when it is working hard. Mine gets rather noisy. (don't have it on the floor, but right next to me) This fan speed increase has been lots more prevalent in the newest version of openSuSE.

Have also used 'top' and it looks like xorg is one of the biggest hogs. However, when I use VMware it goes into hyper drive a lot.

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Ubuntu :: Seems Slow In Some Areas - High CPU Usage?

Jun 15, 2010

I've been using Ubuntu consistently for about three days now. I really, really love the interface and how everything works and all that, but I've been having a couple of weird problems with speed.

Graphics things seem to work really well. When I go into the overview of all my workspaces, it's instant and looks great. The problem is when I open and use some applications.

For example, when I open up the software center, it takes longer than it did the first time to start up. Also, when I drag windows off from being maximized, it takes literally about five seconds for it to show up as being dragged around by my mouse.

When I look at the system monitor, about 20% of my CPU cores are constantly being used. That's 20% each. I have a 3-core CPU, could that be the problem?

Another example: when I went to ..... just now, it would take a second for any volume changes in the video to register.

And I also have smooth scrolling in firefox, but it's very unresponsive now. It's slow as all hell. Even notifications are showing up more slowly.

So, what's the deal? What could I have done wrong?

CPU: AMD Phenom II X3 2.8Ghz
GPU: ATI Radeon HD 4860 1gb
RAM: 4gb

One more thing: I have really bad screen tearing when I try to move windows around, as if there isn't any vsync on. Where can I turn it on or fix this?

I'm still pretty new to Ubuntu and Linux, but I'm an advanced computer user. Since I feel linux is killing my CPU I think I'm going to boot back into Windows 7 for now, but if I can fix this problem I think I want to keep Ubuntu as my main OS after this, having Windows for games, unless I can get Wine to work right with them.

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CentOS 5 Server :: RAID0 - Getting Extremely Slow Read / Write Speed

Jun 28, 2010

I am new to Centos and linux in general. I have just got myself a Dell 1950 server with 2x 1T SATA2 hard disks in it. now the server comes with a PERC5i Raid card with 512Mb. Well I put these in raid 0 and the raid card initilzed the disks to 128 writeback and read ahead. When I loaded centos it did not recognize the dell layout so therefore wanted to initalize it again, so I done this as it wanted. Now I created a 80gb boot and o/s partition and a 100gb swap the rest was created into LVM space to run solus vmwear. But I found the raid 0 to be getting extreamly slow read and write speeds.

Example same disks
Desktop PC max 214mb/s windows vista 64
Server with centos 104mb/s

Now I am not sure but I am told that I need to align the o/s with the raid card settings but I have no idea how to do this. How to do this in plain easy step by step instructions. I mean how to calculate it, how to format the disk this way, and what files to edit where if needed. I have spent hours trying to figure out why my raid 0 is slower than a single disk.

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Debian Hardware :: High CPU Usage During Disk IO / Is This Normal?

Feb 23, 2010

I have two pc's that I've recently converted to Lenny boxes, and I've noticed that whenever there's a lot of disk IO, one of my cores (both pc's have dual core cpu's) jump to 100%. Is this normal? They're both amd64, and I think both of them should be using the AHCI SATA driver.

If you need any more information about my setup, let me know.

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Ubuntu Servers :: Notice Very High Cpu-ram-disk Usage?

Aug 19, 2010

I am running latest apache2 available in the lucid repos on my desktop. All packages are updated as of this moment. Now in the root of my web server I have placed several soft links that point to folders on another ext3/ntfs partitions on the same disk. When I try to download any large file (say above 500M)on this server using firefox, when the 'save' window appears, my desktop freezes, I notice very high cpu-ram-disk usage, even though I have not yet clicked on 'ok' to save the file. This issue is not present when the file size is small. Note that firefox and the webserver are running on the same computer.

Also I have tried nginx and lighttpd and the issue is present there as well. When I tried downloading the same files using Internet Explorer 6.0 using a XP VM the issue is not present. However on Windows as well using Firefox the issue recurs.

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Fedora :: Slow Down High Nautilus Memory Usage After Loading Folder With Lots Of Images?

Nov 22, 2010

I was browsing my folder with lots of images, after finished i close nautilus and i notice that my computer became slow, so i'll check it with system monitor and had found that nautilus are using almost 100mb of ram (opening 4 tabs). I'm not sure if this was normal or not because i try to reopen the same folder with pcmanfm and it only consumes less than 20mb of ram (opening 4 tabs).
here's the screenshot from system monitor .

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Security :: Hard Disk Memory Usage Weirdly High

Apr 2, 2010

i am having a problem that i would call a bit "important" with my server. so, from last 3 weeks the used space of my hard disk (RAID I) started growing up. i have 2 x 1 tb HDD working on RAID I and i did not install anything those weeks. the space just started changing from 90 GB till 580 GB. now the situation is stable there but i think it's not normal.

the bandwidth usage is low (like 120 gb in 2 months) and i am running 6 counter strike gameservers, a forum, a very little website and some local stuffs... a friend of mine told me that my server could have been hacked but i am afraid it did... some useful informations: when i reboot the server the used space goes down again to ~100 GB and then it starts going up again. i cant really find where all those files are located:


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Debian Configuration :: Extremely Slow Transfer Rate On Flash Disk ?

Jul 12, 2011

Same computer and flash. Two results on different OS:

Write speed under debian: 0.4 MB/s

Write speed under Windows: 6.6 MB/s

From what i've been reading on the net I guess it's something to do with the mount - sync option.

I've notice that there are couple of workarounds but all of them are pretty tedious.

Is there any simple (GUI - one/two clicks) tool that allow to mount/unmount flash disk easily using the correct options?

I'm using Squeeze 6.0.2 (Kernel 2.6.32-5-amd64), gnome 2.30.2

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Debian Hardware :: Extremely Slow Transfer Rate On Flash Disk

Jul 15, 2011

Same computer and flash. Two results on different OS:

Write speed under debian: 0.4 MB/s
Write speed under Windows: 6.6 MB/s

From what i've been reading on the net I guess it's something to do with the mount - sync option. I've notice that there are couple of workarounds but all of them are pretty tedious.

Is there any simple (GUI - one/two clicks) tool that allow to mount/unmount flash disk easily using the correct options?

I'm using Squeeze 6.0.2 (Kernel 2.6.32-5-amd64), gnome 2.30.2

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Ubuntu :: Make A Program Crash If System Memory Usage Gets Too High?

Jul 19, 2010

Basically I have a machine with 16GB of RAM and have just discovered that using all of it can crash the whole system over one process. How could I run a process on the system in such a way that if more than 90% of system memory is used, the process immediately crashes?

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Fedora :: Unrar Suddenly Slow / Make It High?

Dec 11, 2009

I've just noticed that unrar is suddenly taking minutes to extract instead of seconds.

I can remember if its recently been updated, but I've uninstalled and reinstalled it and the version is: unrar.x86_64 0:3.7.8-3.fc10

I've found a few Ubuntu posts about it on Google, but in true Ubuntu fashion nobody has any answers!

What's odd is that when I unrar a file from (Nautilus or "unrar x *.rar") it takes say 4mins, then if I do it again it takes 15secs, like as if its caching somewhere.

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Server :: Squid Performnce Very Slow / Make It High?

Nov 9, 2010

I am using Redhat linux 9.0 and using squid proxy server.My problem is tht i my squid server is responsing very slowing. whenevr i try to open sites the site starts to open after 3 or 4 seconds and often squid does not open the complete site. its stop the site in middle. My squid Configurtion is below. Is there any need to tune the system parameters Like from 'SYSCTL.conf' for better diskd performence or another problem. at this time i am using default system parameters. Please help me in detail what is the reason of squid slow performence if there ia a need of any system tuning please tell me in detail. I am very thankfull to you.I am really worried about slow performence of the squid. I also try to offline_mode on but the same problem. code...

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General :: Having A Firewall / Proxy That Has An Extremely High Load - No Apparent Activity?

Aug 19, 2010

I have a firewall / proxy that has an extremely high load, but I can't figure out what's using it. No real cpu usage, the disks are sleeping except for a little log activity, it's on gigabit ethernet and not close to maxing out... Command link stuff runs fast, nothing seems slow, yet the load is sky-high. IME this kind of load is associated with a lot of disk I/O, but that's not the case here. What could be causing this, what else factors into the load?

uname -a:


Linux 2.6.8 #1 SMP Mon Oct 18 11:20:22 CDT 2004 i686 i686 i386 GNU/Linux


07:55:43 up 1503 days, 17:13, 5 users, load average: 26.50, 26.33, 26.25
Tasks: 245 total, 2 running, 243 sleeping, 0 stopped, 0 zombie
Cpu(s): 0.6% us, 1.1% sy, 0.0% ni, 95.0% id, 2.7% wa, 0.2% hi, 0.5% si
Mem: 3895508k total, 3582272k used, 313236k free, 207468k buffers
Swap: 2040244k total, 112664k used, 1927580k free, 1358744k cached

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CentOS 5 Server :: Apache Slow To Respond / Make It High?

Nov 16, 2010

I have CentOS 5.5 x86_64 with Apache, php and mysql.
I have just installed OTRS (helpdesk - trouble ticket system) on that server and no users.
This system works with perl, apache and mysql.
I notice that is slow to respond and at times unresponsive the apache welcome page. code...

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OpenSUSE Hardware :: Slow External Hard Drive / Make It High?

Jan 7, 2010

So I just reinstalled OpenSUSE 11.2 and I went from having 20-30 mbps speed to and from my 1 tb usb ntfs external hard drive to having about 1 mbps transfer speeds now. Is there any suggestions for how I can fix this? I know it can go faster, I just need to figure out how. and would setting acpi=off at boot affect this?

Opensuse 11.2
KDE 4.3
64 bit
EXT4 main disk
NTFS external

fdisk -l code...

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Ubuntu :: High RAM Usage Vs. High CPU Usage

Jul 19, 2011

I am running 10.10 on a netbook (1.6Ghz Atom N270, 2GB RAM). Because it has limited resources, I am currently testing to see which apps I want to use.

Which should take more priority -- an application that uses less RAM or an application that uses less CPU?

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General :: Status Of Memory Usage And Disk Usage Using Sigar In Windows And Ubuntu

Mar 15, 2010

I was trying to get the status of memory usage and disk usage using sigar in windows and ubuntu. done this in windows by just copying the sigar library into jdk library. But i was unable to do so in ubuntu. I've copied the library to java-6-sun library but still can't run the program.

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Debian :: Sata Disk Write Speed Is Very Slow ?

Sep 14, 2010

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:

The related output from my lspci:

The related output from my lshw:

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Debian Configuration :: Sata Disk Write Speed Is Very Slow

Sep 14, 2010

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


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General :: Xorg High Cpu Usage System/video Not Running Smoothly?

Feb 18, 2011

I have just started to have a problem with Xorg it is always using at least 30% of my CPU, and the whole system does not run smooth so if I play a video it does not run smooth, it judders, also even if I drag an icon it judders across the screen. Im running Ubuntu 10.10 2.6.35-25-generic x86_64 VGA compatible controller: nVidia Corporation G98M [GeForce G105M] (rev a2)

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Ubuntu :: 10.10 - Samsung R530 Laptop Extremely High Temperature

Mar 11, 2011

My Samsung R530 laptop is over heating, I believe it is the fan because I can't feel it working at all. When it over heats it just shutsdown. A few times it is came up with a warning while shutting down for a split second saying a extremely high temperature and shutting down seconds later. I am running Ubuntu 10.10 with Nvidia Geforce with Cuda. I have tried reinstalling Ubuntu, installing Fedora... Nothing I have tried has worked.

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Ubuntu :: Disk Very Slow After Going From 9.04 To 10.04 / Make It Up?

Oct 1, 2010

My disk is very slow after I installed ubuntu 10.04 over my old 9.04. Doing some tinkering helped a little code...

But it is still far too slow. On the other version, I had a custom partition setup, with the home partition with 100GB, and ext3 (and other partitions for swap, boot, root folder and space for a windows partition I never cared to install ).

This time I am using a standard Lynx setup (2 partitions, the swap and the main one with almost 250Gb, using ext4).

Some applications I develop, that use disk for some unit tests, are now very slow to work with. Is there a way to making it faster? Going back to 9.04? Waiting for 10,10? Gparting and making partitions smaller on ext3? I don't know if any of these will work.

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Fedora Hardware :: Diagnose System Lockup - Extremely High Loads?

Dec 23, 2010

Where does one look in terms of diagnostics after a system lockup and hard reset? For example, one of my computers, running Fedora 14 i686, has taken to locking up quite a bit lately. My only way out is a hard reset. Now, once the thing is booted back up I'd like to try to figure out where the problem lies. Where do I look? Will any of the log files reveal anything relevant to me? If so, what sort of things would I be looking for. Keywords?

This same box also locked up when I had Fedora 14 x86_64 installed. I had read that there were some issues with the newer 64 bit kernels that were causing lockups and / or extremely high loads. This is why I switched back to the 32 bit version, 2 days ago to be exact. The box gets little use. It's a toy really and not my main "daily use" computer. It is, however, running folding@home. Maybe that's where the problem is. About 15 minutes ago I called home and had my wife reset the box, then I logged in from work and stopped the folding service. I'll have to see if it locks up without folding running. Folding was running on this box when I had the 64 bit version installed also.

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Ubuntu :: Defeat HP's Efforts To Force It's Customers To Purchase The Extremely High?

Apr 28, 2011

I'm using Ubuntu 10.10, with a wireless HP j4680. That prints on occassion. I've tricked it once by creating a new printer System/Admin/printers, setting the "new" printer to default then deleting the old printer. Not working that way this time. I've search the old forums, a lot of activity in 2007-2008 but nothing since.

Is there a way to defeat HP's efforts to force it's customers to purchase the extremely high, close to 50.00 dollars in my area.

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Ubuntu :: Python Consumes Extremely Lot Of Ram Usage?

Apr 6, 2010

i noticed few times that my ram usage in gnome increases high. So i found that python is using more than 500 MB Ram. Normally i didn�t notice this python. What does it do?

I am not sure, but i think that these increasing has something to do with skype/empathy (i think it grows after using this programs...

So, i killed the process and ram usage is normal.

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General :: High IOWait - System Starts To Slow Down

Jan 5, 2010

I've been having a problem in Ubuntu 9.10 recently where starting about 2 minutes after startup my computer slows down and becomes unresponsive. I believe the problem is associated with a high IOWait because I have the system monitor applet on my Gnome Panel and it displays 100% IOWait every time my system starts to slow down. I have tried booting into other kernel version and the problem persists. I don't really know what IOWait is or how to diagnose this problem further. I've looked around online and it seems like you have to find a specific process that is causing the IOWait, but I don't understand how to go about doing that.

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Fedora :: Hidden Disk Space Usage \ Can't Figure Out Where The Runaway Usage Is?

Dec 10, 2010

I'm running into a problem where my system is running out of disk space on the root partition, but I can't figure out where the runaway usage is. I've had a stable system for a couple of years now, and it just ran out of space. I cleaned some files up to get the system workable again, but can't find the big usage area, and I'm getting conflicting results.For example, when I do a df it says I'm using 44GB out of 58 GB:

[root@Zion ~]# df -h
Filesystem Size Used Avail Use% Mounted on


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Fedora :: Extremely Slow Machine

Jan 27, 2010

I run F12. Since some days my laptop has become very sluggish. In Mozilla, switching between the tabs takes like seconds instead of fraction of a second. Also minimizing and mximizing windows takes long. Switching between the windows too takes long. Now I can't see the cursor while typing this post. I disabled some services that start at the boot time. I'm posting a list of services that are on in the runlevel 5 as that's the one I use.

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Ubuntu :: 10.04 Extremely Slow While Booting Up?

May 1, 2010

Not much else to say. I'd say it takes at least a minute before I get to the login screen. After that it runs fine and most of the previous problems I've had since upgrading have resolved themselves. why it's taking so long to boot up?

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