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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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Resources

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