Reduce your Linux memory footprint

Posted by Iain on Feb 2, 2007 10:30 PM EDT
IBM/developerWorks; By Martyn Honeyford
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A lack of physical memory can severely hamper Linux® performance. In this article, learn how to accurately measure the amount of memory your Linux system uses. You also get practical advice on reducing your memory requirements using an Ubuntu system as an example.

A much-touted benefit of Linux is that it is more efficient than Microsoft® Windows®, and will therefore perform better on less than cutting-edge hardware. This performance makes Linux a very attractive upgrade for the many people who have old Windows 98-era boxes still sitting around that are no longer being treated to the latest and greatest software (particularly security patches). The truth of the matter, however, is that while the Linux kernel can still be configured to be reasonably small and efficient, as new computers have increased in power, many Linux desktop environments (such as KDE and GNOME) have added lots of features. Consequently, the default install of most distributions offer a less than stellar level of performance when installed on older hardware. The same is true of many modern applications also -- Web browsers such as Firefox and office suites such as OpenOffice are fully featured, but trying to run them on a machine with 128MB of RAM can be a painful experience! So what is the answer? Throw away all of your old hardware and upgrade? Install a Linux distribution from circa 1995? (If you decide to go that route, I recall having a good experience with Linux-FT.) Never fear: as those in the Linux community have known for years, a great strength (some would say the great strength) of the Linux kernel and Linux distributions in general lies in their ability to be customized. This article delves into how you can tailor your Linux systems for better performance on modest hardware.

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A good read beirwin 2 1,445 Feb 3, 2007 6:41 PM

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