Noise
Occasional and random personal reflections by Doug Kaye.
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Web Server Performance Myths. Don Park wrote, "Here is a recent semi-public paper on web server performance mentioned in a message to Tomcat developer mailing list. Download article.zip and read the PDF file inside the zip file. It has some interesting discussion about web server performance myths. Here is an choice excerpt:
[...] yahoo gets 1.5 billion pageviews a day. [...]
Yahoo uses 4,500 server to serve up 1.5 billion pageviews each day. If we divide that by the number of seconds in a day, we get 17,361 pageviews per second. Assuming the load is distributed evenly across the servers, each server handles 3-4 pageviews per second per system.
"One of the key points the paper stresses is the performance/value offered by hardware XML accelerators for XML-happy web applications. There are other choice bits in the paper, so check it out before the authors take it offline." [Source: Don Park's Daily Habit]
Posted Wednesday, October 01, 2003 8:43:22 AM 
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RSS-DATA Jeremy Allaire has posted his thoughts for expanding the role of RSS into data-oriented applications. I particularly like this idea because of its support of unintended consequences. Just like Amazon.com's and Google's web-services interfaces, I can imagine publishing all sorts of data-based RSS feeds for others to take and run with.
However as folks deploy feeds of a similar nature, it will highlight the need for standardized semantic models. Right now, RSS works in part because of its relatively consistent semantics. An RSS-DATA spec leaves that issue open, but that's okay for now. Others will address application-specific semantics.
Posted Wednesday, October 01, 2003 8:36:28 AM
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