developerWorks: Kernel Comparison: Web Serving on 2.4 and 2.6

“Many improvements have been made in the Linux 2.6 kernel to
favor enterprise applications. This article presents results from
the IBM Linux Technology Center’s Web serving testing efforts,
comparing the Linux 2.4 and 2.6 kernels from various aspects. The
highlights here are the key enhancements in the 2.6 kernel, the
test methodologies, and the results of the tests themselves. Bottom
line: the 2.6 kernel is much faster than 2.4 for serving Web pages,
with no loss in reliability.

“The objective of the Linux Web serving testing effort in the
IBM Linux Technology Center (LTC) is to uncover Linux kernel
defects. The emphasis is on workloads relevant to real-world
enterprise user environments using Web servers/application servers,
and on improving Linux kernel stability, scalability, and
compatibility with Web servers/application servers. Identification
of defects of Web servers and application servers is not the
primary focus…”

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