smarr
Joined 12 years ago
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https://stefan-marr.de/
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Comment · 3 years ago
> is that Java compiled or interpreted?
The figure for the JIT-compiled numbers uses a standard HotSpot JVM, with JIT compilation. The figures for the interpreter numbers uses a standard HotSpot JVM with the -Xint flag, so, only using the Java bytecode interpreter.
The TruffleSOM interpreter is AOT-compiled, so, it's a native binary, which is then interpreting the SOM code.
Comment · 3 years ago
With the amount of work that's needed to even attempt such a study and get to a point that one can precisely define which variable one is actually measuring, there are indeed compromises needed.
But please feel free to replicate the study for your preferred language. I am happy to discuss more about why we made certain choices.
Comment · 3 years ago
Please see Figure 2 in the blog post https://stefan-marr.de/2023/10/ast-vs-bytecode-interpreters/... or Sec. 5.2 in the paper https://stefan-marr.de/papers/oopsla-larose-et-al-ast-vs-byt...
We report on results for both, with and without just-in-time compilation. The specific focus for this work was pure interpreter performance in the context of metacompilation systems, but before compilation had a chance to kick in.
For both RPython and Truffle/Graal, it's possible to disable the JIT compilers and measure pure interpreter speed.
Comment · 3 years ago
Please see Figure 2 in the blog post https://stefan-marr.de/2023/10/ast-vs-bytecode-interpreters/... or Sec. 5.2 in the paper https://stefan-marr.de/papers/oopsla-larose-et-al-ast-vs-byt...
We report on results for both, with and without just-in-time compilation. The specific focus for this work was pure interpreter performance in the context of metacompilation systems, but before compilation had a chance to kick in.
You are free to disagree with the specific design choices of the AST and bytecode interpreters for SOM, but we put quite some effort in to have an as fair as possible comparison.
Comment · 3 years ago
Yeah, the serve seems to be temporarily down. The paper can also be found here: https://tugawa.github.io/ejs-comlan-preprint.pdf