How much concurrency can tomcat support?

Maximum concurrency depends on hardware resources, JVM configuration, and application code. Generally speaking, Tomcat can support: low concurrency of hundreds of requests per second, medium concurrency of thousands of requests per second, and high concurrency of tens to hundreds of thousands of requests per second. Optimizing concurrency can take steps such as optimizing JVM configuration, using thread pools, reducing resource contention, and enabling asynchronous processing. Actual concurrency limits need to be determined through benchmarking.

Tomcat concurrency support

Tomcat is an open source Java Servlet container developed by the Apache Software Foundation for hosting JavaEE Web app. Its high concurrency support capability is one of its core strengths.

Concurrency

The maximum concurrency supported by Tomcat depends on multiple factors, including:

• Hardware resources: Number of CPU cores, memory capacity and network bandwidth
• JVM configuration: Heap size, garbage collector and thread pool configuration
• Application code: Thread pool management, resource occupation and lock usage

General rules of thumb

According to experience, under general hardware configuration, Tomcat can support:

• Low concurrency applications: Hundreds of requests per second
• Medium concurrency applications: Thousands of requests per second
• High-concurrency applications: Tens or even hundreds of thousands of requests per second

Optimizing concurrency

To further To improve concurrency, you can take the following measures:

• Optimize JVM configuration: Adjust heap size and garbage collector settings to minimize pause times
• Use a thread pool: Create and manage threads to handle requests instead of creating new threads for each request
• Reduce resource contention: Use synchronization mechanisms and locks to avoid threading Resource contention between
• Enable asynchronous processing: Allows threads to be released while waiting for I/O operations to complete, thereby improving throughput

Actual Concurrency Limits

Actual concurrency limits vary depending on the specific application and environment. Through benchmarking and load testing, the concurrent capacity of a specific application can be determined.

Conclusion

Tomcat has excellent concurrency support, which can be further improved by optimizing JVM configuration, thread pool usage and application code. Exact concurrency capacity depends on hardware resources, application characteristics, and configuration settings.

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