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Dagens Nyheter

Dagens Nyheter. Swedens largest morning newspaper. DN.se has 1.2 million unique visitors per week. A normal day about 150 000 pageviews per hour. Stefan Näslund Editorial IT Manager. Autumn 2008. New publishing platform to be launched februari 17 2009. Upgrade to Polopoly 9. Redesign

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Dagens Nyheter

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  1. Dagens Nyheter Swedens largest morning newspaper. DN.se has 1.2 million unique visitors per week. A normal day about 150 000 pageviews per hour. Stefan NäslundEditorial IT Manager

  2. Autumn 2008 New publishing platform to be launched februari 17 2009. • Upgrade to Polopoly 9. • Redesign • No old code. • Many new features. • New hardware. Rubrik Källa:

  3. Continious change • Agile development, scrum • New content • New features • Multiple third parties

  4. My problem Would the new site be fast enough? How is ”fast enough” defined? During load? What kind of load? Normal ; High, Peak What type of load ? Rubrik Källa:

  5. Remember this? Major events will come, but when ? All major newsites broke down Rubrik Källa:

  6. The solution Load testing in production environment. Define performance goals. Translate into load test scenarios. Do loadtest during night time – in production! Fix errors, analyze logs, test again. Monitor continually using same tool. Rubrik Källa:

  7. The results The Loadtests where run during jan/feb. - Some initial errors were found, - Applications tuned for improved performance and stability ( front end cache and cc user sessions ) Capacity planning All the primary goals met with the current HW ->Bandwidth is the limiting factor. Rubrik Källa:

  8. Before / After -> On going effort

  9. Advice • Define goals for load tests. • Can you interpret the load test results? • Monitor reported problems specifically. Rubrik Källa:

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