Central processing unit

cgroups – use to control your cpu and memory


cgroups is a kernel feature and with userspace utilities, we can use the feature to control the cpu and memory for per process. So, lets first install the required tools. sudo yum install …

Monitor your system with sysusage.


First some information on sysusage: […] Description : SysUsage continuously monitor your systems informations and generate periodical graph reports using rrdtool or javascript jqplot library. …

zswap – compcache, compressed swap for better performance


First, here is a link to article on compcache. http://code.google.com/p/compcache/wiki/CompilingAndUsingNew zswap is already in the kernel and you can see the documentation in the kernel …

Disable a few cores when you want to save power.


If you have a lot of CPU power and working on battery. If you do not need that much of power and would like to rather save some battery power by disabling some cpus then you can use the below script. …

Music players on Linux – the poor mans random song player.


If you have more applications running on your system then your system can handle them then you know what I mean when I say that the Music Players take a lot of CPU. Otherwise harmless, but when you …

Benchmarking the system/CPU performance


Have you ever wanted to have a quick check on your CPU performance. I know that lot of people will say that this is not the right way to do this, but here is something that you can use to check the …

BASH Script Performace


Today we will look at some bash code snippests and the performance issues. Lets first look at the problem and the implemented solution: Problem: We needed to log the output of the ps command for all …

qemu manager for Windows to run your linux distribution


If you are into virtualization, then you must have heard about Qemu. And if you are on windows then this is a must: http://www.davereyn.co.uk/download.htm

faster bash operations on files with File Descriptors.


I was writing a bash script that would do some operations and read and write to file. Seems that that was pretty simple with […] <td> <div class="text codecolorer"> while …

Total upload and download on any interface.


Something that I have been searching for a long time, finally some look inside the <a class="zem_slink” title="Procfs” rel="wikipedia” …

10 Useful Sar (Sysstat) Examples for UNIX / Linux Performance Monitoring


by Ramesh Natarajan on March 29, 2011 Using sar you can monitor performance of various Linux subsystems (CPU, Memory, I/O..) in real time. Using sar, you can also collect all performance data on an …

use finch, less memory and cpu usage, in replacement for pidgin.


Well, if you are on linux then you have options – is a known fact. But how those options help? I was working on a machine which had very less RAM and was quite old system and it was running F14. Guess …

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