Lot of times you want to check the disk rpm, especially on the servers to check if it is 7.2K or 10K or 15K rpm disk. How do you do this from linux terminal. Here it is :
sginfo -g /dev/<device>
Note that sginfo comes from sg3-utils.
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Image via <a href="http://commons.wikipedia.org/wiki/File:Memory_module_DDRAM_20-03-2006.jpg">Wikipedia</a>
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Continue readingWith the ever increasing cost of the Hardware, the amount of physical RAM available on the system is increasing day by day. For example, couple of years back, I had a system which was very high end Desktop with 256MB RAM and today I have a 2GB RAM Desktop. So, whats the point.
The Linux systems (right word should be kernel) are desiged to use both RAM and swap partition. Swap partition is a partition on Hard disk and is used mostly like RAM. Problem is that HDD access is always slower than RAM access and hence inherently, the system will work little slower even if you have enough RAM not to use swap. The term ”swappiness” is used to determine how the kernel should try to seam-balance between the use of RAM and swap. By default, most of the distro’s have a swappiness of 60. A higher value of swappiness means that the RAM will be swapped out faster.
Continue readingHere is the list of components of my Desktop :
<a class="zem_slink freebase/en/nvidia" title="Nvidia" rel="geolocation" href="http://maps.google.com/maps?ll=37.3707277778,-121.963738889&spn=0.01,0.01&q=37.3707277778,-121.963738889%20%28Nvidia%29&t=h">nVidia Corporation G96 [<a class="zem_slink" title="GeForce" rel="homepage" href="http://www.nvidia.com/object/geforce_family.html">GeForce 9500 GT] (rev a1) with 1GB
<a class="zem_slink freebase/en/intel_corporation" title="Intel Corporation" rel="geolocation" href="http://maps.google.com/maps?ll=37.3879277778,-121.963538889&spn=0.01,0.01&q=37.3879277778,-121.963538889%20%28Intel%20Corporation%29&t=h">Intel(R) <a class="zem_slink freebase/en/intel_core_microarchitecture" title="Intel Core (microarchitecture)" rel="wikipedia" href="http://en.wikipedia.org/wiki/Intel_Core_%28microarchitecture%29">Core(TM) i5 CPU 650 @ 3.20GHz with 6 core
Transcend JM1333KLU-2G @ 1333MHz – totalling 4 GB of <a class="zem_slink freebase/en/ddr3_sdram" title="DDR3 SDRAM" rel="wikipedia" href="http://en.wikipedia.org/wiki/DDR3_SDRAM">DDR3 RAM
22 inch BENQ <a class="zem_slink freebase/en/liquid_crystal_display" title="LCD" rel="wikinvest" href="http://www.wikinvest.com/concept/LCD">LCD monitor
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