How do you do load testing and capacity planning for web sites?

The short answer is: Nobody can answer this question except you.

The long answer is that benchmarking your specific workload is something that you need to undertake yourself, because it’s a bit like asking “How long is a piece of string?”.

Source: https://serverfault.com/questions/350454/how-do-you-do-load-testing-and-capacity-planning-for-web-sites

Can you help me with my capacity planning?

Benchmark your code on hardware similar to what you’ll be using in production, identify any bottlenecks, then determine how much of a workload your current hardware can handle, and/or how much hardware horsepower you need to handle your target workload

Source: https://serverfault.com/questions/384686/can-you-help-me-with-my-capacity-planning

Glossary #

• Latency
• Throughput
• Percentiles

Testing #

Tools #

• Apache Benchmark
• JMeter
• k6

Remediation #

Almost always it’s just these 2 main options:

1. Scale up:
   • Bigger server
   • Moar RAM
   • Faster disks
2. Scale out:
   • Get moar servers
   • See: Load Balancing

Resources #

https://serverfault.com/questions/350454/how-do-you-do-load-testing-and-capacity-planning-for-web-sites https://serverfault.com/questions/384686/can-you-help-me-with-my-capacity-planning https://serverfault.com/questions/350458/how-do-you-do-load-testing-and-capacity-planning-for-databases https://serverfault.com/questions/2107/tools-for-load-testing-http-servers https://stackoverflow.com/questions/1754427/jmeter-alternative

Tutorials #

https://www.digitalocean.com/community/tutorials/an-introduction-to-load-testing

Related #

• Load Balancing
• Server Optimization
• Load Testing and Capacity Planning for Databases