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Linux Foundation Publishes Study Estimating the Value of Linux

New Report Finds the Value of Developing a Linux Distribution to Be Worth $10.8 Billion

SAN FRANCISCO, CA -- (Marketwire) -- 10/22/08 -- The Linux Foundation (LF), the nonprofit organization dedicated to accelerating the growth of Linux, today announced it is publishing a new report written by Amanda McPherson, Brian Proffitt and Ron Hale-Evans on the value of Linux development. The paper finds that it would take approximately $10.8 billion to build the Linux community distribution Fedora 9 in today's dollars with today's software development costs. It would take $1.4 billion to develop the Linux kernel alone.

The report, titled "Estimating the Total Development Cost of a Linux Distribution," is available today at http://www.linuxfoundation.org/publications/estimatinglinux.php.

This report is an update of a 2002 study done by David A. Wheeler that examined the Software Lines of Code (SLOC) present in a typical Linux distribution (Red Hat Linux 7.1). At that time, Wheeler found that it would cost over $1.2 billion to develop a Linux distribution by conventional proprietary means in the U.S.

The authors examined the Fedora 9 distribution using Wheeler's tools and methods, specifically the SLOCCount tool that estimates value and effort of software development based on the COnstructive COst MOdel (COCOMO). The report goes into detail on the methods used, how they specifically apply to the Fedora distribution and the Linux kernel, and what an estimate of Linux' value really means.

Highlights of the paper include:

-- How Much Does a Full Distribution Cost?

Using 2008 salary figures, the tests published in the paper revealed that if developed today, the full set of Fedora 9 distribution packages would cost $10.8 billion. The Fedora 9 distribution contains 204.5 million lines of code in 5547 application packages. The development effort estimate comes close to 60,000 Person-Years.

-- How Much Does the Linux Kernel Cost?

Applying this test to the Linux kernel included in Fedora 9 found the value to be 6.8 million lines of code worth $1.4 billion. The development effort estimate for the kernel alone exceeds 7500 Person-Years.

-- How Does This Really Measure the Value of Linux?

This study reveals that collaborative development creates enormous economic value. In the past two years alone, over 3,200 developers from 200 companies have contributed to the kernel. An even larger number has contributed to full Linux distributions. Measuring the economic effort involved is imperfect, but this report clarifies why the methodology is the best approach and some of the limitations.

"This year has seen an incredible proliferation of Linux-powered devices outside of traditional Linux strongholds: netbooks like the eeePC, mobile phones like Android and the Gphone, and consumer devices like the Amazon Kindle. Would these products be possible without Linux?" said McPherson. "I think this points to the power of the collaborative development model. Monopolistic software companies used to be able to fund heavy R&D budgets, keeping out competition. Given the cost associated with building an OS like Linux, one wonders if proprietary companies will ever go it alone again."

Amanda McPherson is vice president, marketing and developer programs, at the LF and leads its promotion, developer, and community-relations activities. Brian Proffitt is community manager with the LF, managing the Linux Developer Network. Ron Hale-Evans is senior specifications writer with the LF and works closely with the Linux Standard Base (LSB) developer team to create LSB specifications.

About the Linux Foundation

The Linux Foundation is a nonprofit consortium dedicated to fostering the growth of Linux. Founded in 2007, the Linux Foundation sponsors the work of Linux creator Linus Torvalds and is supported by leading Linux and open source companies and developers from around the world. The Linux Foundation promotes, protects and standardizes Linux by providing unified resources and services needed for open source to successfully compete with closed platforms. For more information, please visit www.linux-foundation.org.

Trademarks: The Linux Foundation and Linux Standard Base are trademarks of The Linux Foundation. Linux is a trademark of Linus Torvalds. Third party marks and brands are the property of their respective holders.

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