Ubuntu :: Settings To Change Maximum Allowed Speed Of CPU
Jul 11, 2011
I have an AMD Athlon Regor 2.8 Ghz Dual Core CPU. About a month ago I overclocked the bad boy to 3.36 Ghz, on stock voltage. Since I have an AMD chip, I have the Cool and Quiet feature. With CnQ on, it never shows more than 2.8 Ghz (my stock speed), even on Full Load. However, with it off, it shows the correct 3360 Mhz all the time. I would like to keep CnQ, as well as my overclock. I've read in forums that it's okay to do that, that CnQ will automatically clock up to overclock when needed. But for me, with CnQ on, it only hits 2.8. Nothing more. Is this an Ubuntu problem? Is there a setting where I can change the maximum allowed speed of my CPU?
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May 17, 2011
My problem is I installed Zone Minder for camera security and I'm testing it on my laptop with the built in webcam and everything seems to work perfectly except when I try to view the live feed from the camera, it's just a black box. No video.
I checked this website and it's exactly the problem I'm having with a fix for it but his fix doesn't work. He says to type:
Code:
user@ubuntu:~$ sudo echo "256000000" > /proc/sys/kernel/shmmax
user@ubuntu:~$ sudo service apache2 restart
user@ubuntu:~$ sudo service zoneminder restart
But when I do the first line, I get this:
Code:
deemar@Clementine:~$ sudo echo "256000000" > /proc/sys/kernel/shmmax
bash: /proc/sys/kernel/shmmax: Permission denied
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Mar 10, 2010
With three 1.5TB, 7200RPM drives in RAID0, they thrash. And yet the network out, 4 gigabit ports LAG'd together to create a single 4 gigabit connection, can't even push a single gigabit a second.
Here's what I've done so far:
I've enabled jumbo frames on the bond: ifconfig bond0 mtu 9000
Tweaked SAMBA performance:
Tweaked hdparm:
I haven't enabled jumbo frames on the switch but I'm almost sure that won't help me much after trying all this.
I'm running out of ideas here guys. The clients connected are pulling down images in both Ghost and WIM (ImageX) format. Large files too, upwards of 12 gigabytes.
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Mar 19, 2010
I am currently in process of remodeling my home file server and would like some advice. The server has two internal hard drives that are rather small (10-15G) and I've now ordered a larger 2 TB drive which for the time being will have to run as an external drive through USB 1 (going to be rather slow).
I'm probably going to put the OS and swap on one of the internal drives but I was wondering if there was a good option for increasing the system's performance by making the second internal drive act as a kind of buffer for the 2TB usb drive. I'd like both the advantages of the large size of the USB drive and the fast read/write speed of the internal drive. Would it be possible to put it together so all reads and writes to the fileserver would first go to the fast internal drive (or even better, to internal drive and USB drive at once, although I suppose RAID is not an option with USB attached storage), and would then be put to the large drive. It would also be nice if the most used files from the large USB drive would be cached on the internal drive for fast read speed. I understood that ZFS would help me accomplish something the like but as I understand, it's not that easily available on Linux.
The current plan is to make the large drive a simple XFS drive and build a small daemon on the server that would simply move all new files from the internal drive to the USB one, once they are not used but it would be nice to have a more low level solution.
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Jul 31, 2011
Have 4xSamsung F4 HDDs in an Ex503, Raid 05 - don't know how to format them to get maximum speed out of them. I've read [URL] tor_issues and other things but guess i am too dumb. Some claim using GPT Partition table and gparted and i shouldn't have any problems because it's automatically doing what i want, but i am not sure about that.
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Apr 6, 2010
I hava a ASUS P5GC-MX/1333 and I want to install the driver from my Realtek audio, because, in windows 7 the volume is very loud, but in fedora even in the maximum is very low.
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Jan 26, 2010
Just got an HP dv6-2150 laptop. Dual boot with Windows 7 and 9.04 (9.10 will not work but that's a different story). The screen resolution is too low and is set at the highest option available (1024x768 which is a 4:3 aspect ratio). The HP uses the new Intel i3-330m chipset with on-board Intel HD graphics. The system is capable of 1366x768 resolution (16:9) - so how do I get it there? xorg.conf looks real generic - nothing specific to Intel.
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Nov 24, 2010
for some reason i am not allowed to change the permissions on my hhd i have a 3G partitioned off of it but i cant acess the other 290G what i can do to get permission
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Feb 21, 2010
I installed OpenSUSE 11.2-KDE about 2 weeks ago, and have been pretty satisfied with it so far. Apart from one niggling little problem. When I went to the 'Password and User Account' page (Configure Desktop>About Me) and tried to change from the default image to something more personal, I got a message box saying "Your administrator has disallowed changing your image." However, on the same page I was allowed to enter personal details and could, if I wished, have changed my password. I logged in as root to see if I could change it from there, but I got the same message. As this is a single-user machine, where I am effectively root/administrator, it would appear I am banning myself from changing my image. So far, I've been allowed to change anything else.
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Feb 21, 2010
I installed OpenSUSE 11.2-KDE about 2 weeks ago, and have been pretty satisfied with it so far.Apart from one niggling little problem.When I went to the 'Password and User Account' page (Configure Desktop>About Me) and tried to change from the default image to something more personal, I got a message box saying "Your administrator has disallowed changing your image." However, on the same page I was allowed to enter personal details and could, if I wished, have changed my password.I logged in as root to see if I could change it from there, but I got the same message. As this is a single-user machine, where I am effectively root/administrator, it would appear I am banning myself from changing my image. So far, I've been allowed to change anything else.
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Aug 17, 2011
Well, as many proxy applications, GNOME Network Proxy Preferences only allow to ignore hosts. What I want to do is exactly the opposite. I only want to use the proxy for few sites. Is it possible to define only the allowed hosts in any way?
PS: I know FoxyProxy add-on for Firefox does this, but 1)I don't use Firefox and 2)I want the proxy settings system wide not only for browser.
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May 28, 2010
While reading some papers on securing apache with selinux, I have tried to bind httpd to port 3000 expecting to be blocked by the selinux, since port tcp 3000 isn't on the http_port_t list. However I was able to start the service...
I'm preety sure selinux is enforcing. Also, if I bind httpd to tcp 81 selinux denies the start of the service, as expected!Did I miss something? Why is httpd allowed to start binded to a port that's not explicitly allowed?
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Aug 21, 2011
i have a computer with 3 users on it, and a folder using samba that everyone on the network has access to. Lets say that, the folder is stored in /etc/sharedfolder. What happens is, when user1 puts a folder in it, then logs off, user 2 attempts to modify it and fails, because permission is set to 755, and they are not in the same group. (even if they were, it should still need to be 775) Anyway, my current solution is, every 5 minutes a crontab changes permission like so: chmod 777 -R /etc/sharedfiles && chown useradmin:superadmin -R /etc/sharedfiles Which works, but seeing as there is getting close to a gig in there, this is a bad solution, as it eats up the computers resources. Solutions that i think might work:
1) create a script that only changes permissions that need be changed.
2) change file permission settings to force all documents to inherit parent document settings
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Jan 30, 2010
The login screen is always at maximum screen resolution, how can i change this?
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Mar 24, 2011
I currently have a Windows XP OS which i want to dual-boot with Ubuntu Linux 10.10 . I put the disk in the drive and chose the option to install Linux through Windows. But it hangs in the middle. I am also unable to change my BIOS settings due to which i can"t change my boot preference. My first Boot is the HDD. I want to change it to CD-ROM. Any suggestion? I also have another PC where i can boot through the CD...I tried installing there by booting from the CD but i get this error message after seeing the purple Linux screen with the loading dots. "(Process:286):Glib warning**:getpwuid:failed due to unknown user id (0)
P.S.- I am not able to see any options while the boot is going on
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Jul 27, 2010
In Windows (which I can happily say that I no longer have) I had a program called SpeedFan, which monitored the temperatures of my hardware and also my fan speeds. In Ubuntu I monitor my temperatures and fan speed through and AWN applet called Hardware Sensors; however I cannot find a program to change the fan speed. I think that it is just running at full speed in Ubuntu, I'm sure it was slower in Windows.
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May 28, 2011
so basically here is what I didsudo pwmconfigThis is what I get:
Found the following devices:
hwmon0 is acpitz
hwmon1/device is thinkpad
[code]....
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Sep 7, 2010
Is there anyway to change the scroll speed for the mouse in Firefox? Right now it leaps down a long way for each click of the scroll wheel, practically leaving me cross eyed and having to search for my position where I was reading. I can't seem to find a way to adjust this anywhere.
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Jan 7, 2011
I know its possible because 2 days ago the "scroll speed" was perfect. The only thing that has changed is that I have used a different usb port for my mouse now, and I have installed a copy of windows 7 on my second HD. However, after all this, my mouse scroll speed on Ubuntu is unbearably too fast. Its almost half a page for every one "click" of the mouse scroll wheel.
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Apr 30, 2011
I was wondering if it's possible to change how much my mouse wheel scrolls. For some reason it scrolls way more than is normal (not just in web browsers, but in every application). It works fine on Windows 7, but it seems to not work well with Linux distros.I have Ubuntu 11.04 installed, and I'm using a Microsoft Wireless Notebook Optical Mouse 4000.
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Aug 23, 2010
I noticed that, when choosing different notes, LMMS not only changes the pitch of the instrument, but also the speed. So, if an instrument makes a sound that lasts about 5 seconds, a really low note can make it last about 10 seconds, and a really high note can last about 1 second. Is there a way to configure how LMMS handles sounds so that it changes their pitch, without changing their speed?
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Dec 26, 2010
I love to use opera & especially like the speed-dials.. the file I need to edit is 'standard_speeddial.ini' however I do not have enough access & have no idea how to get it (& I have tried as well).
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Feb 27, 2011
After an amazing ordeal with drivers, terminals, and command-line codes, I finally found an ethernet cable that plugged in correctly, installed the drivers, and now I have wireless! Yahoo!
Now, about another problem...
The mouse scroll wheel speed/line skipping is way too fast. It skips half the page in one scroll! Is there a menu (like Windows) that lets you customize this?
In technical terms, it's a Microsoft Wireless Mobile Mouse 3500 with BlueTrack technology.
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Jan 22, 2010
I like my bottom panel to auto hide. I have this setup on 2 computers. On one computer, it's much faster with hiding/showing than the other computer.Could it be a performance thing that effects it? mean, the one that's quicker is a quad core with 4gb of ram, whereas the one that's slower is a pentium 4 with 1gb of ram.
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Jun 28, 2010
I'm running a XFX Nvidia GTS 250 512MB card. I have installed Ubuntu 10.04 and so far I'm loving it - apart from one small issue. Using 195.36.24 drivers, I cannot control the fan speed - it keeps running the card pretty hot - hitting 75 deg. C when one OpenGL game is running. The fan barely goes over 60% speed - I'd rather have it run at 80% constantly to keep the temps under control.
There are drivers on nvidia website which "seem" to be a lot newer : 256.35 (using 64bit Linux) - are those "direct replacement" for the 195.36 which Ubuntu installs by default?
I have a well ventilated case (1x120mm pulling air, 1x120mm pushing out, neat cabling, etc). I have found nvclock but no joy - even with -force it doesn't want to change fan speed.
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May 1, 2011
Just did a clean install of 11.04.Is it possible to adjust the unity launcher speed?When I take my cursor to the left it takes a while to show up. I'd like it to be immediate.
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Dec 5, 2010
I have Fedora 13 installed on my laptop. For some reason it always seems to run at 1GHz even though the maximum is 1.67GHz (even under 100% load).
The output of cpufreq-info code...
I tried changing the limits by setting cpufreq-set -r -g userspace -c 0 -d 1000MHz -u 1670MHz but the output it still identical (in particular "frequency should be within 1000 MHz and 1000 MHz").
Any ideas how to change the limits?
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Sep 1, 2011
I want to estimate how a certain piece of code will perform on different Intel Westmere processors. The various processors all support the same QPI and memory speed, and they all have the same cache sizes; the only difference is the CPU core clock speed (2.66GHz vs. 2.93GHz etc.) I already have one such processor running with a very fast CPU core clock. I would like to estimate the performance of the others without having to purchase them first.
Using cpufreq-set on Linux (acpi-cpufreq driver), I can set my core clock speed to a variety of slower values. My question is simply this: Does setting the core clock speed in this way change anything other than the core clock speed? That is, does it precisely simulate a slower CPU, or does it also slow down the front side bus or change the cache size or whatever?
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Aug 9, 2010
I have two onboard gigabit connections and a PCI-E gigabit card, none of which seem to want to run beyond 100M. Everytime I issue the command to change speed to 1000M, it does nothing. I have tried modifying the interfaces file to make sure the command line for ethtool gets done automatically, but still no luck.
Below is the output from the use of ethtool to change speed. Since I am having performance issues with my local area networking (e.g. Samba transferring slower than the internet), I have been trying to figure out how to debug my network performance, and this was an obvious thing that stood out. The router and card are gigabit, yet don't use their full transfer rates.
[Code]...
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Jun 30, 2010
Tried to Google an answer but it seems the 'System' menu options have changed in 10.4 compared to older versions.I want to chnage the auto-run settings so that each time I enter a CD, Rhythembox DOESN'T load but SoundJuicer DOES
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