My mom's Ubuntu machine has been rather strange the last day or so. It takes a while to turn on, delaying apparently at loading "powernowd".
GDM seems to load fine, but then logging in to Gnome takes a long time. The panels ususally crash, as well as the desktop, but eventually everything loads again.
Most programs take a long time to load; also, "sudo" takes a long time to request a password, but after that the "sudoed" command runs normally.
Gksudo never seems to show up, so I can only access programs like "Software Sources" via terminal (e.g. sudo program).
Strangely, Gnome System Monitor says the processor and memory are not completly full.
Does anyone know what this is? Are there any commands I can run to diagnose it?
Whenever I transfer a movie into my 16GB USB flash disk, my whole system becomes windows-like and unusable!
When i drag the file(s) into the USB disk folder, it starts out fine and pretty darn fast (25mb/sec) then slowly decreases until it's unbearably slow (3m/sec) and as a side effect my whole system starts deteriorating. I basically have to wait for the file to finish transferring before i can use my desktop again!
This has been happening with every version since Karmic (all 64bit)- I put up with it because I don't use the USB stick that much.. but lately it's been my go to source for transfering large files to/from work.
im running vps with debian lenny, with apache2 webserver, memcached, postgres and django-framework using mod-wsgi. Some of the pages served by django take long to generate (aprox 15 s), but there is also the memcached, compensating this.
My problem is that, when a robot visits the site, it starts traversing the site visiting all the pages and also the nongenerated, thus slowing it down to point where it is not responding.
What Im looking for is a solution to identify that the request comes from a robot (user-agent, ips, etc) and limit the resources, so that f.e. only one thread serves the robot etc...
What is the best way to determine in Linux if a multi-processor machine is overloaded? I thought load was a good measure but I run a large number of tasks which don't consume a lot of CPU but which drive up the load. A 4 processor machine has a load of 66 right now according to top for example but mpstat reports that the all CPU idle time is 89%.
gauge when the server is getting overloaded with users. At present I run the server mainly as a proxy server with about 100 users. The bandwidth at the data centre is 100Mbps connection with total bandwidth used last month = 17431.16 MB I would like to add a VPN in future but feel that this might overload the bandwidth as instead of it just being web traffic it will the entire client TCP connections. I would like to monitor this before it gets to the stage where users are complaining but not sure how to gauge whether the proxy is being overloaded. It is used mainly for video traffic.
I've got this problem for a few weeks and I cannot figure out. I'm pulling my hair out. I have a server installed PHP, lighttpd and redis. Sometimes, I got the following messages in the error log of lighty: Code: 2010-09-24 13:57:33: (mod_fastcgi.c.3011) backend is overloaded; we'll disable it for 1 seconds and send the request to anoth er backend instead: reconnects: 0 load: 567 2010-09-24 13:57:33: (mod_fastcgi.c.3011) backend is overloaded; we'll disable it for 1 seconds and send the request to anoth er backend instead: reconnects: 0 load: 626 and:
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.
I have this network desktop ultimate edition 2.4 (ubuntu 9.4) laptop ubuntu 9.10 ethernet network on ubuntu remote desktop is slow in general on windows much faster !
As the title says, my raid system is very very slow (this is for raid5 6x1Tb SAMSUNG HD103UJ): Code: leo@server:~$ sudo hdparm -tT /dev/sdb /dev/sdb: Timing cached reads: 1094 MB in 2.00 seconds = 546.79 MB/sec Timing buffered disk reads: 8 MB in 3.16 seconds = 2.53 MB/sec It's impossible and I've tried every configuration (raid5,raid0,Pass Through), and I become nearly exactly the same speed (with restarts, so I'm sure I'm really talking with the volumes I've defined).
One can compare it with the system drive : Code: leo@server:~$ sudo hdparm -tT /dev/sda /dev/sda: Timing cached reads: 1756 MB in 2.00 seconds = 878.12 MB/sec Timing buffered disk reads: 226 MB in 3.01 seconds = 75.14 MB/sec
Some hardware/software infos : Code: Raid card Controller Name ARC-1230 Firmware Version V1.48 2009-12-31
Code: Motherboard Manufacturer: ASUSTeK Computer INC. Product Name: P5LD2-VM DH
Code: leo@server:~$ uname -a Linux server 2.6.31-20-server #58-Ubuntu SMP Fri Mar 12 05:40:05 UTC 2010 x86_64 GNU/Linux
Code: IDE Channels ..... I'm a bit lost now. I could change the motherboard, or some bios settings.
i installed ubuntu 11.04 beta rarely two months before. i m updating the version regularly. my system seems to slow very much for merely a month after its installation.what shall i do?
I'm having a bit of an issue using overloaded operators in an already overloaded operator. In my following code, I have overloaded the && operator to compare two Course objects. The operator in turn goes to a function which calls other overloaded operators to compare private object variables of that object to compare them.
After my upgrade the bootup seems to take a long time.I am dual booting with XP.From the boot menu when I select Ubuntu it takes 35 seconds before I get the login screen.Is this normal?Also, other apps seem to be running slow. Running Win 7 under VMWare Workstation 7.1.
i tried to download several games for lubuntu, but some of them are running badly, and slow the system down, although they are not very large one of them is just 100MB, other one was even much less than that. i have pentium 4, 512 ram 128 MB built in video card PC.
Not really sure I'd call myself a newbie with Linux, I've been using a few different distros for a little over a year now.. maybe longer.Though, I'm not very good with terminal just yet. I don't know all the code stuff.I put this system together about 6 months ago. It's comprised of about 50/50 new and used parts. Everything should be listed in my signature file. All was running just fine when the build was complete. But now it seems every day its getting slower, crashes almost every 30 mins.. USB 2.0 runs very slow and lags to the point it just stops altogether.
I really wish that I could test on Windows, or any other OS for that matter. But I'm down to my last hard drive, a very slow (4k RPM?) tiny (40GB) Maxtor IDE. I don't even want to waste any more of my time trying to install/reinstall any OS to the thing. Don't think my mobo allows for booting from USB flash drives, and still yet with it running USB so slow what would be the point?I've tried Ubuntu 10.04 and was very satisfied... except that it won't allow any usage of my Azio PCI wireless N card. The light goes on and it flashes as if its trying to connect, but it won't connect to any secure connection.
So here I am back to 9.10 and wondering if my hdd and/or RAM could be causing some sort of problem? Is RAM being a bottle neck? It's DDR333 but CPU clocks it320 because of something to do with the 800FSB and whatever stupid Intel chipset is on mobo.Can someone please give me a suggestion as to where to start? I have no other computer and really need it for school and work. I have no money for new system or even any more parts.It's getting me so peed that I'm about ready to take a 4 pound sledge to it
I am using firefox in my fedora o.s and its very very slow when compared to my IE of windows. sometimes i get an error saying "server not found",it mainly takes a lot of time in in the first stage of connecting the site, that is looking up www.google.com(bottom left corner of your browser)
I'm running Kubuntu 10.4, and I'm having a really slow Internet connection, with Windows everything works fine.
When I upload a file to an internal Ubuntu server the speed is ok ~15MB/s.
The problem is only with Internet Firefox / synaptic, any program using Internet. Last download done with synaptic display 18KB/s when normally it should be 500.
I have a problem with Lubuntu. First of all I installed it on my old laptop (amd sempron 1.6GHz, 512MB ram, s3g vga) as windows seemed to slow down my system. Installation was good, but the problem is screen resolution which is only 800x600 and there is no higher res option. Laptop's native is 1024x768. I searched a lot about how to change it but there is no post for lubuntu (everything is for ubuntu, xubuntu, and doesn't seem to work in here). Beyond that isse i I feel Lubuntu is running much better than windows and I want to use it. Using Lubuntu 11.04. Let me add that when I tried Lubuntu 10.04 it didn't have this problem (all resolutions where available).
I have installed jessie on a couple of machines. One is configured as the NFS filesystem exporter and NIS server. The other one, I am trying to configure as NFS and NIS client. NFS does not seem too much of a problem, I can mount the exported filesystem to a directory in the client and unmount it, but when I install NIS the system becomes very slow. Any command preceded by "sudo" takes a very long time (a few minutes) to complete. Then, upon rebooting the system, it reports many services failed to start (login, accounts, modem manager, avahi, network manager, exim). When if finally completes, I get a terminal login, instead the graphic login window.
I'm running testing and over the last week or two my system is getting slow. Any disk access slows everything to a crawl. Even the cli can take several seconds to display characters as I type them.
My system went for three days w/o a software update... Is this normal(anyone experiencing this?)...?
It seems like to me.. Fedora 13 has a longer update interval than Fedora 12.. I remember back in Fedora 12 I get security updates like every other 12 hrs.. (I know as with security patches the less the "better"(in some way))..
But I am still concerned.. security updates has been slow for me.
I am currently running Fedora 14 on an x86_64 system that acts as a whole house server for named, dhcp, nfs, nis, htpp, samba, etcMy issue has existed for a few years and I am just now getting around to posting about it.I have a simple samba configuration for sharing files to a windows VM on another box.Here is the config:
[global] workgroup = NERD server string = Samba Server on NERD
I've some problem with openSUSE 64bits and more precisely extreme slowness.
At first, it was during the Installation (net install), each action (click on a button for example) was followed by a global freeze (though mouse was not). The entire configuration (the first part of installation) took me about 1 hour... At that time, i was thinking "ok it's just installation, it will be fast and smooth in the end..."
I was wrong, the system is as slow as the installation but weird thing: it's only when I log on that the system slow down. I mean the booting process doesn't seem slow and I've not seen any errors. So what's going on ?
I don't know if it's the cause or the consequence but i noticed that my cpu was always at 90+ % except when I don't do anything (useful isn't it?) so it may be because the system doesn't manage my cpu the right way. (it's just an hypothesis)
Now configuration information:
Software:
I tried to install openSUSE 11.4 64bits with the net install downloaded yesterday from the official website. I chose Gnome. I don't have swap (see hardware below) and I have a different partition for / and /home
Kernel: 2.6.37.1-1.2-desktop
Hardware: Asus X5BVN laptop Intel Core 2 Duo P7350 @2GHz 4GB DDR2 RAM (enough ram -> no swap) nVidia GT240M 1GB Intel WiFi Link 5100 Atheros AR8131 Gigabit Ethernet (odd thing: during the installation it wasn't this name)
I have just installed 11.04 desktop edition on a freshly built machine with a 3GHz processor and 8GB ram. It has 8GB swap space and a 250GB partition which runs along side a 750GB Windows partition. The problem is it is running incredibly slowly. The interface freezes up every few minutes and stuff takes ages to load. I have run Ubuntu on computers with less than a 1GHz processor before and it has been fine. Should I just reinstall?
My father installed Kubuntu to his external hard drive to try it out, however, it is running extremely slowly. It takes a good minute and a half to boot to the Plasma desktop and it even seems to run faster off of the LiveCD.His system easily meets the specifications to run Kubuntu (4 gigs of RAM, decent NVIDIA graphics card) yet it slows to a crawl immediately upon booting. Does anyone know how to fix this? The hard drive is a Western Digital MyBook, 475GB model.
I'm running Debian Sid amd64 on a Vostro 1320. Both hibernate and suspend works fine using the kernel hooks, but after the system resumes from hibernation, it starts to get really sluggish. Iceweasel hits 100% CPU use, and I have to close it and open it again to get it working, and generally the system is just must slower than before the hibernation. I have to reboot to get performance back, and even doing swapoff and swapon does not solve the problem.
I installed Fedora 12, 64 bit on my Dell Latitude D820 laptop with Core2 Duo processor(7200 speed) and 2 gigabyte Memory.
I have updated the yum. I have enabled the rpm repositories.
It is very weird that my system suddenly works very slowly and hangs. every time I login after a while the CPU usage goes up to the end with out any reason!
Before this I had installed Fedora 12, 32 bit and I had the exact same problem.
I have installed Fedora 6, 7, 8, 9, 10 and 11 on my laptop before and I had non of these problems with them.
The interesting point is that after hanging my system works constantly slow even when I restart my system! It is slow even in booting the BIOS and start up and choosing the kernel page!
The only remedy to get rid of the slow working for a while is to Shut down the system completely and turn it on again. Restarting do not make it work normally just shutting down makes it normal for a while.
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.
Just got this Dell M4400 with Redhat EL5 installed. After I setup the xorg.conf for dual monitor, the startup became extremely slow. Once I type in the user name and password, it just blacks out with the mouse curser still visible. This remains for about 3-4 minutes and then I'm in.
I thought it was my X file, so I overwrote the xorg.conf with my original file and restarted my X. Sadly, it still does that.
What could be causing it? Do I have to reinstall video driver or something?
what it is that's overloading my web site.I'm running LAMP on Fedora 12, on an AMD 64 processor. My web site is relatively low volume; a good day is over 250 visitors, and most days it's below 200. I can't see anything there that would overload even a small box like mine.Several times a day -- perhaps 5 or 6, it's hard to say because I'm not always there -- I get flooded with requests. I run "top" in the background all the time to watch it, and what I see is the load average going through the roof -- I've seen the 1 minute figure go over 50 in about 3 minutes -- but the cpu numbers stay reasonably low, which I interpret as the system being I/O bound. The "top" display will show at least 40 or 50 http sessions in flight, with PID numbers spanning around 150 numbers slightly out of sequence, suggesting that the requests hit in close proximity but not precisely at the same time. These episodes can last up to 40 minutes before the system clears and the load avg goes back down to something sane, although I've had instances where I get a flurry of activity that lasts maybe 5 minutes, and the load avg goes no higher than about 20. The httpd log does not show any particular pattern of clients hitting my server. The requests appear to be historical pages from the blog (e.g. I notice requests for images from older pages, not the current front page.)
My best guess is that what I'm watching is Google or some other web caching service scanning my site for caching purposes. But I don't know. Maybe I pissed off some aggressive hacker (it's a political site) and he/she/it has figured out a way to periodically cause me grief from masked sites.I have two questions:
1) Does anybody recognize this pattern? Can you tell me what it is?
2) How can I streamline mysql and apache so these incidents don't cripple me for half an hour?
