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Final Results

Prior to stress testing and tuning the website, it could handle only 100 users (4 pages/sec). It can now handle 2000 users (45 pages/sec, nearly 800 hits/sec) with low CPU utilization (~20%) on the servers. For reference, if held for an entire day, this rate would result in ~3.9 million page hits per day.

At 2000 users, CPU utilization of the servers is below 25% -- the customer's Internet connection is now the only factor limiting total capacity. With a higher bandwidth connection, it is possible that this site could now service up to 8000 users.

2000 user test shows high throughput and steady performance
figure 9: 2000 user test shows high throughput and steady performance

2000 user test shows low page durations
figure 10: 2000 user test shows low page durations

Servers show low utilization at 2000 users
figure 11: Servers show low utilization at 2000 users

Additional Resources

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Our experienced performance engineers have tuned hundreds of systems for companies large and small, and know just where to look, saving you time to market and money. We'll run your website through a complete performance evaluation, then tell you exactly how many users your site can support, including such important details as the effects of "the last mile." We'll also pinpoint potential problem areas and give you a full report detailing what needs to be fixed and where.

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