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How to slow down a program and why it can be useful
Making programs slower can be useful to find...
Stefan Marr
Modern computer systems are quite fascinating. They are highly complex, run a lot of software, and their performance characteristics are hard or impossible to predict.
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Visit stefan-marr.de → RSS feedOn Hacker News Jul 2019 – Aug 2025
Software Engineering 4Systems & Performance 2Programming Languages 2
2
What if we could see all concurrency bugs in the debugger?
A paper on debugging non-deterministic concurrency issues interactively.
3
Which Interpreters Are Faster, AST or Bytecode?
A brief overview of our study of abstract-syntax-tree and bytecode interpreters on top of RPython and the GraalVM metacompilation systems.
4
The Changing "Guarantees" Given by Python's Global Interpreter Lock
A look into the implementation details of CPython's Global Interpreter Lock (GIL) and how they changed between Python 3.9 and the current development branch that will become Python 3.13.