Ubuntu :: Rip My DVDs - Reduce Cpu Usage ?
Jul 11, 2010
I need to rip my DVDs, an operation which is heavy on the CPU, on my laptop. This makes the temperature rise very quickly, even if the process has very high nice value, and my laptop was already shut off automatically once. Probably there is some bug, since the temperature if often hotter than optimal, but this is really too much (plus these days my room is hot too).
I don't want to ruin anything, so I'd like to put some kind of limit on the CPU usage. Say I don't want any of the two CPUs to go over 70% (a moment ago they were both at 100%, I have paused the process). Is there a way ti d0 this?
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May 15, 2010
I like a lot of the last Ubuntu editions, but my computer is a little old, and Ubuntu becomes slower each edition to me.
I get a AMD Athlon 2 GHz, with just 512 MB of RAM memory...
I tried to customize my last installation of 9.10, but i just mess up with the OS. Well, I googled for informations about reducing memory usage, as well others speed-ups but all them are a bit older. Does anyone know any resource about this?
Until now I just disabled startups programs, but i really want is remove packages and everything that I don't use.
One thing thats get me up set sometimes is that I run Win XP pro under a cryptographed partition, and even yet its very fast in my PC. I even tried Windows 7, and its was faster than the Ubuntus I installed.
When I'm using the 10.04, there is a lot of memory used by cache, specially Gnome...
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Sep 2, 2009
I am running into a scenario where inode utilization (df -i)on a partition is 100% I want know
1) Is there a better way to list the total count of all files in a partition and just display total number of files in each directory in that partition I can get approx total for the entire partition by following commands
ls -Rla | wc -l
find -type f | wc -l
whereas ls -Rla gives too lengthy outptut with all the files in each directory
2) How to know inode utilization for each user or system account? There is huge number of files and how to remove it
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Feb 11, 2010
I have a VPS running a web application served using Apache, that on average deals with 20-50 requests per second. It's usually above this point (50 requests per second) that the amount of memory that Apache uses is too high for the VPS and errors start occuring - web pages crash and VPS falls over for a minute or two before going back to normal levels.
I believe that MaxClients is the best way to reduce the amount of RAM that Apache uses and I am planning to reduce MaxClients from 256 (default value) to around 100. Each Apache process uses ~15MB and the server has 1900MB of ram in total - the server does nothing else other than run Apache and a few crons.
Current setting are:
Code:
KeepAlive On
MaxKeepAliveRequests 100
KeepAliveTimeout 3
# prefork MPM
# StartServers: number of server processes to start
[Code].....
I tried reducing MaxClients before which lead to massive slowness, so I need some other options as well.
Does my suggestion of reducing MaxClients to ~100 seems sensible? What are my options if the server experiences slowness again - optimise the application? What's the best way to reduce memory usage - move images to another web server?
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Feb 14, 2010
I have a rack of four 1TB drives all partitioned identically with three primary partitions. On each drive
- the first partition is only 64MB;
- the second is a large 900GB partition and
- the last holds all the remaining space
mdadm has been used to set up
/dev/md0 - RAID1, comprised of /dev/sda1 and /dev/sdb1
/dev/md1 - RAID5, comprised of /dev/sda2, /dev/sdb2, /dev/sdc2, /dev/sdd2
/dev/md2 - RAID5, comprised of /dev/sda3, /dev/sdb3, /dev/sdc3, /dev/sdd3
OK, so it was a silly mistake to make - but I am now need to increase the size of /dev/md0. My thinking is to reduce the size of md1 so that I can grow md0.
On md1 I have two logical volumes. I've successfully reduced the size of the volume so that I can reduce the size of md1. Now I'm at the nervous stage; I can find little written on the topic of shrinking RAID5 arrays - and even if I do this I'm unsure if I can move partitions around to regain the space I so desire.
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Jan 1, 2010
so i have f12 installed on my hd with lvm using the whole extent of the HD , i want to reduce it so i can dual boot it with a windows system, i managed to reduce the logical volume to free some space, but i cant seem to reduce the physical volume, is this possible and how ?
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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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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:
Code:
[root@Zion ~]# df -h
Filesystem Size Used Avail Use% Mounted on
[code]....
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Nov 15, 2010
Is there any way to monitor one process' CPU usage and RAM usage over time on Linux? I am trying to change to a cheaper VPS and need to work out what level of CPU and RAM I need!
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Jan 13, 2009
I am sure that all of us know the result of top command in linux. i want to get the value that the top command return as CPU usage, memory usage. so how do i do(programming relation)?
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Aug 6, 2010
I've come across a really strange issue with one of my RHEL servers. The "free" command shows that 7019 MB of memory are actually in use by my system, but when summing up the actual usage (or even virtual usage like the example below) it doesn't add up - the sum is far less than what is reported by "free":
Code:
[root@server1 ~]# free -m
total used free shared buffers cached
Mem: 12011 7946 4065 0 4 23
-/+ buffers/cache: 7919 4092
[code]....
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Apr 29, 2010
I want to set a limit on the available RAM in my Linux machine, it currently has 4GB of RAM, and in order to perform some experiments I need the system to recognize and use only 1GB. I don't want to limit the amount of memory to one particular process (like with ulimit), but to the whole system. The OS in Ubuntu 9.10. Somewhere a long time ago (for Fedora) I read about editing grub, so that at boot time the limit is set, it might be something along those lines, but not really sure.
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Jan 13, 2010
I re-arranged and added some new icons into the launcher bar at the top of the screen.However the gap between the icons is much wider than initailly at the beginning.I fizzled around for a while but manually dragging does not help.How can I reduce the minimum gap?How can I tell Ubuntu: "Put all current icons in row with minimum distance (=1 pixel)"?
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Jul 7, 2010
I made 272 Photos from one book. Total size was 920MB. I used than gscan2pdf to create pdf document, and reduced there quality size. Result 116 MB. Than i converted it to grayscale [URL] with:
Code:
gs -sOutputFile=grayscale.pdf -sDEVICE=pdfwrite
-sColorConversionStrategy=Gray -dProcessColorModel=/DeviceGray
-dCompatibilityLevel=1.4 -dNOPAUSE -dBATCH color.pdf
Result: 108MB
Is it anyway possible to reduce size more? Something like Google does with their books?
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Aug 1, 2010
i m using ubuntu 10.4 version and i want to knw that is their any software or something else so that i can resize my images from 2 mb to in kb as my image folder is of 614 mb and i want to put that folder images in my mobile so how can i reduce the size of that folder
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Jun 17, 2011
I am wanting to reduce around 9.9gigs of music to 8gigs to fit on my phone. I have done some snooping and noticed a program called Lame. I also noticed a code:
for x in [ `ls -1 *.mp3` ]; do lame --preset 32 $x new32-${x}; done
I was wondering if someone would be able to explain the code and how I go about converting the bitrate to 96?
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Oct 19, 2010
I have an install of Mint 9, and the fan runs a lot less then it did in Vista, but it still is way to loud because it's not very warm at all. I was wondering if there is a tool for Ubuntu/Mint that you could adjust this issue. It would be nice if it was a gui tool, but anything will do, because it's really bugging me.
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Apr 13, 2010
Just wondering if anyone has been successful at reducing the memory footprint of ubu 9.04. I have googled and read a number of "suggestion" but when applied had little or no effect on memory usage. So, after a complete new install, I am here asking this question. It is not a biggie but I am always looking for ways to reduce memory usage without sacrificing functionality.
I try to help others who would like to try and or convert to linux but often their systems have minimal memory and they don't or can't purchase more memory. So, being able to install ubuntu with a smaller memory footprint would be a good thing.
A basic ubuntu 9.04 seems to use about 300 Mb and for many that is too much. Hence, my quest for a smaller memory requirement. I have tried the ubuntu minimal cd's but they don't really achieve much in the memory area and they take so much longer to install since one uses the internet.
At any rate, if someone knows what services or programs that can be safely removed in order to achieve a better memory usage Oh, I have looked at numerous other distro's but seem to always return to ubuntu.
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Apr 22, 2010
I have an Ubuntu Server 8.04 that is operating fairly high CPU loads - Samba appears the culprit. I have 5 main shares with 17 users. Other packages include Apache (2 Wordpress sites for intranet only), YaCy (minimal indexing 10 pages/minute), and a MySQL business database with no more than 10 concurrent users. This only started in the last 2 weeks - updates are not the culprit.
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Jul 17, 2010
I want to reduce the thickness of a panel but it is restricted by the main menu with "places" and "system". Is there any thing I can do to reduce the thickness of main menu and hence the thickness of panel?
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Jul 22, 2010
The topic of this thread says it all.
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Aug 21, 2010
I tried to check how many workspaces my desktop could have at once, and it got stuck at 36. Now i can't reduce the number. When I click the workspace switcher, and press "preferences", the preferences screen flickers like crazy, and I can't change it. The window title bars and borders are altso gone, but gnome is running. I don't have compiz running.
Is there any way of reducing the amount of workspaces, through gconf, or terminal?
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Aug 26, 2010
Is it possible to keep the hard drive off most of the time, so that the laptop runs silently? (The fan has been taken care of already. Are there any other noise sources?)
I have no practical knowledge about this, but in theory it should be possible to cache frequently used files in RAM and to store disk writes on a flash drive...? UnionFS?
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Dec 19, 2010
Ubuntu 10.04.1
Nvidia gpu ( Asus GeForce GTS 450 Series graphic card)
DVI connection to monitor (Dell 2405)
Using a VGA connection I can use the buttons on the monitor to control both contrast and brightness. Using dvi there is no control(no contrast control and the brightness button changes the numbers but not the actual brightness!) I cannot find the app that controls the Nvidia GPU
(it should exist as I found it on Zenwalk).
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Feb 9, 2011
the default icons on the gnome desktop are quite big in size.. how to reduce default icon size ?also I want to know if there's a similar tool like msconfig to manage start-up programs in Ubuntu?
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Mar 2, 2011
I'm new to Ubuntu Netbook Remix. I love it. I'm using it for web dev with a LAMP and Rails installed. Everything is peachy.I would much prefer the icons in the launcher to be a lot smaller though, anyone have any idea how to scale them down? I reckon about 75% the size they are now would be about perfect.
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Jun 21, 2011
I found this template: [URL] Perhaps the most I like. Unfortunately, there is a high transparency, does not it look nice on a light background... May know how to how to reduce the opacity??
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Feb 26, 2011
I am not sure if this is really a Ubuntu question but lets try it!Received email shows a long header which includes lines of code. I can scroll through it but I can't reduce the number of lines on screen.This significantly reduces the number of lines available for the message. There must be a way to reduce or eliminate this header.
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Apr 22, 2009
"How can I reduce TCP timeout " for delay which is normally in minutes. I want to reduce it in miliseconds or 1-2 seconds.
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May 19, 2010
i have a 700GB ext4 partition for storage purposes. By default it has 5% of the space (35GB!) reserved for root, which does not make sense for this partition. how can i reduce this percentage? there is already a lot of data on the partition and i'm afraid that mke2fs would erase all the data. is there a way to change the percentage without touching the data?
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