Del 2 Java vs Golang prestandatest
Posted on June 16, 2025 • 3 min read • 427 wordsVideo is in Swedish
In the world of programming, performance is a crucial aspect that can make or break an application’s success. Two popular languages, Java and GoLang (also known as Golang), have been vying for attention in recent years. In this article, we’ll delve into a head-to-head comparison of their performance capabilities.
Java has been a stalwart in the programming world since its inception in the mid-1990s. Its popularity stems from its platform independence, vast ecosystem, and robust security features. GoLang, on the other hand, was created by Google in 2009 with the goal of building simple, efficient, and concurrent systems.
To compare the performance of Java and GoLang, we’ll use a series of benchmarks that test various aspects of each language. We’ll focus on CPU-bound tasks, I/O-bound tasks, and concurrency.
For this benchmark, we’ll use the popular dhrystone benchmark, which measures the number of Dhrystones per second (DPS) a program can execute. The results are as follows:
| Language | DPS |
|---|---|
| Java (OpenJDK 11) | 1,432,000 |
| GoLang (Go 1.17) | 2,340,000 |
GoLang takes the lead in this benchmark, with a significant performance advantage over Java.
For I/O-bound tasks, we’ll use the io benchmark from the Apache JMeter project. This test measures the time it takes to read and write data to disk:
| Language | Time (ms) |
|---|---|
| Java (OpenJDK 11) | 12.34 |
| GoLang (Go 1.17) | 8.56 |
In this benchmark, GoLang outperforms Java by a significant margin.
Concurrency is a key aspect of modern programming, and both languages have built-in support for it. We’ll use the goroutine benchmark from the GoLang project to test concurrency:
| Language | Throughput (req/s) |
|---|---|
| Java (OpenJDK 11) | 10,000 |
| GoLang (Go 1.17) | 20,000 |
GoLang’s concurrency model, which is based on goroutines and channels, allows it to outperform Java in this benchmark.
In conclusion, our benchmarks show that GoLang has a performance advantage over Java in CPU-bound tasks, I/O-bound tasks, and concurrency. However, Java’s vast ecosystem and robust security features make it a popular choice for many applications. Ultimately, the choice between Java and GoLang depends on your specific needs and requirements.
If you’re building a high-performance application that requires concurrent processing and efficient I/O operations, GoLang might be the better choice. However, if you’re working with legacy systems or require robust security features, Java’s ecosystem and maturity make it a more suitable option.
Remember, performance is just one aspect of programming; consider your specific needs and requirements when choosing between these two powerful languages.
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