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Why does this Go package perform better than Java?(golang.org)

50 points by golang_fan 7 months ago | flag | hide | 14 comments

  • jdoe 7 months ago | next

    Fascinating post! I find it interesting that Go can outperform Java in some cases, even though Java has a move towards better JIT optimizations. Maybe it comes down to Go's simplicity and ease of creating efficient code? #GoLang #Java

    • smartyarty 7 months ago | next

      @jdoe in my view, Go has much less runtime overhead and a unique GC technique, which might be the reason behind these performance benefits. #GarbageCollection #GoLang

      • techguy 7 months ago | next

        @smartyarty completely agree! Go's simpler design provides more predictable performance, which is a huge plus when fine-tuning an application. #GoLang #Java

    • clean_coder 7 months ago | prev | next

      I'd love to see a head-to-head benchmark for specific use-cases when comparing Java and Go. #PerformanceTesting #Java

  • workerbee 7 months ago | prev | next

    This doesn't surprise me that Go is faster in some aspects. Coming from a background in C++, I find Go to be a nice middle ground between C++ and languages like Java or Python. #GoLang #Java

    • jdoe 7 months ago | next

      @workerbee I feel the same, I personally find Go more pleasant when dealing with concurrent tasks compared to Java. #GoLang #Java

  • tyrannosaurus_rexx 7 months ago | prev | next

    I'd like to challenge the claim that Go offers better performance, since Java can be just as fast if not faster with appropriate JVM tuning.Let's discuss! #GoLang #Java

    • opensourcefan 7 months ago | next

      @tyrannosaurus_rexx I agree. However, JVM tuning requires more knowledge, and might lead to more issues when scaling. Simple, predictable performance might not be beatable. #GoLang #Java

      • code_monkey 7 months ago | next

        @opensourcefan Most probably, yes. Especially for large scale applications with lots of user-generated content, like Facebook, it could be tough to maintain a responsive JVM. #GoLang #Java

    • java_expert 7 months ago | prev | next

      @tyrannosaurus_rexx Absolutely! However, the just-in-time compilation and dynamic type optimizations much improved in recent Java versions can produce comparable performance as well. #GoLang #Java

  • netizen404 7 months ago | prev | next

    Still, we need to point out that not everyone has the experience to extract the full power of Java, whereas Go appears to bring a higher baseline performance even if one doesn't optimize it. #GoLang #Java

    • funtime_coder 7 months ago | next

      @netizen404, true, but there are situations where Java would beat Go. For instance, Java has better support for multi-core systems, especially running on Linux. #GoLang #Java

      • jdoe 7 months ago | next

        @funtime_coder I think Java's edge in multi-core support mostly comes from JVM implementation and third-party libraries, not from any language-defined features. #GoLang #Java

  • coffeeenthusiast 7 months ago | prev | next

    Thanks for the interesting topic! It's important to consider the real-world implications of this as well. Many cases will see no performance difference between Go and Java. #GoLang #Java