JITWatch

Log analyser / visualiser for Java HotSpot JIT compiler. Inspect inlining decisions, hot methods, bytecode, and assembly. View results in the JavaFX user interface. (by AdoptOpenJDK)

JITWatch Alternatives

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NOTE: The number of mentions on this list indicates mentions on common posts plus user suggested alternatives. Hence, a higher number means a better JITWatch alternative or higher similarity.

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JITWatch reviews and mentions

Posts with mentions or reviews of JITWatch. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2023-07-26.
  • It's 2023, so of course I'm learning Common Lisp
    11 projects | news.ycombinator.com | 26 Jul 2023
    You can kind of do the same as DISASSEMBLE in Clojure.

    There are some helper projects like https://github.com/Bronsa/tools.decompiler, and on the OpenJDK JitWatch (https://github.com/AdoptOpenJDK/jitwatch), other JVMs have similar tools as well.

    It isn't as straightforward as in Lisp, but it is nonetheless doable.

  • How much is too much? 380+ lines of an AssertionUtil class Or Loggin classes in general.
    1 project | /r/javahelp | 9 May 2023
    As you have encapsulated the asserts inside methods, these will be called at runtime with the arguments evaluated (for example, creating that lambda). When assertions are disabled, the C1/C2 may inline the empty method call eventually, but I don't know whether it drops the lambda instantiation as well. You can use JITWatch to see what gets inlined. The general notion though is to not worry too much. Lazy log messages are a common pattern.
  • JIT x86 ia32
    1 project | /r/javahelp | 9 Nov 2022
    You can use jitwatch for this. To see the actual assembly code generated you will also need to use a debug build of the jvm.
  • SIMD accelerated sorting in Java – how it works and why it was 3x faster
    2 projects | news.ycombinator.com | 12 Jun 2022
    If you use Oracle's own IDE, it will support it out of the box, as it already did on Sun's days.

    Then there are other ways depending on which JVM implementation is used.

    On OpenJDK's case you can load runtime plugin to do it

    https://github.com/AdoptOpenJDK/jitwatch

  • Equivalent of cppinsight for kotlin
    1 project | /r/Kotlin | 30 Oct 2021
  • Compiler Explorer - Java support
    2 projects | /r/java | 27 Apr 2021
    We use https://github.com/AdoptOpenJDK/jitwatch for this.
  • How to Read Assembly Language
    1 project | news.ycombinator.com | 2 Mar 2021
  • Why Zig When There Is Already C++ and Rust?
    10 projects | news.ycombinator.com | 15 Jan 2021
    If you already know any JVM or .NET language, the first step would be to understand the full stack, you don't need C for that.

    Many of us were doing systems programming with other languages before C went mainstream.

    What you need to learn is computer architecture.

    Getting back to JVM or .NET, you can get hold of JIT Watch, VS debug mode or play online in SharpLab.

    Get to understand how some code gets translated into MSIL/JVM, and how those bytecodes end up being converted into machine code.

    https://github.com/AdoptOpenJDK/jitwatch/wiki/Screenshots

    https://sharplab.io/

    Languages like F# and C# allow you to leave the high level comfort and also do most of the stuff you would be doing in C.

    Or just pick D, which provides the same comfort and goes even further in low level capabilities.

    Use them to write a toy compiler, userspace driver, talking to GPIO pins in a PI, manipulating B-Tree data stuctures directly from inodes, a TCP/IP userspace driver.

    Not advocating not to learn Zig, do it still, the more languages one learns the better.

    Only advocating what might be an easier transition path into learning about systems programming concepts.

  • JIT 101
    1 project | dev.to | 11 Jan 2021
    You can enable a lot of debug information about how the compiler decides what to do with your code using feature flags like -XX:+UnlockDiagnosticVMOptions -XX:+PrintInlining. If you want to dive deeper into the world of the Hotspot JIT Compiler, have a look at JITWatch.
  • Is Java As Fast As C When It Comes To Stack
    1 project | /r/java | 21 Dec 2020
    In what concerns HotSpot, one way would be JITWatch.
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    www.influxdata.com | 18 Jul 2024
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10
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6.3
4 months ago

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