Krister Walfridsson

@kwalfridsson

Compilers / GPUs / NetBSD / Lindy Hop (not necessarily in that order)

Lund, Sweden
Vrijeme pridruživanja: studeni 2010.

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  1. 2. velj

    I have written a Valgrind tool to find potentially useless memory operations

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  2. 26. pro 2019.

    What the f*ck Python! 😱 – Exploring and understanding Python through surprising snippets.

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  3. 20. pro 2019.

    Interesting blog series about the web search engine

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  4. proslijedio/la je Tweet
    3. pro 2019.

    An unsoundness in Rust using only safe code! Rust provides a bunch of guarantees so it's always interesting to see the rare ways it can be broken. I think this is the first unsoundness since the thread spawn issue after 1.0?

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    6. pro 2019.

    AI Dungeon 2 is pretty magical (and runs nicely on my browser although boots up in a minute or two). YOU CAN LITERALLY DO ANYTHING

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    19. stu 2019.

    Clang format might reduce the performance of your mission-critical toupper() loop by 4x. Act now before it's too late.

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  7. 9. stu 2019.
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  8. 2. stu 2019.

    “Producing Wrong Data Without Doing Anything Obviously Wrong!” Stabilizer: Rigorous Performance Evaluation Coz: Causal Profiling

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  9. 2. stu 2019.

    This is a good talk about why evaluating and optimizing performance is harder than what it may seem (just comparing the running time is not enough...), and ways to do it better. "Performance Matters" by Emery Berger

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  10. 27. lis 2019.

    I liked this talk about how C++20 coroutines are implemented in GCC. “C++20 coroutines in GCC” – GNU Tools Cauldron 2019 Video: Slides:

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    22. lis 2019.

    Arbitrary code execution to convert Super Mario to Flappy Bird, done entirely by hand on a real device! The first exploit modifies the UI to show exact sprite co-ordinates (used for the payload), then the new game is 331 bytes written with spin jumps!

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    25. lis 2019.
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    22. lis 2019.

    Amazing talk about hardware security on Xbox.

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  14. proslijedio/la je Tweet
    21. lis 2019.

    Why is compiler Interprocedural Analysis and Optimization (IPA) becoming more important? explains in his great 2019 talk.

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    16. lis 2019.

    This is a fantastic introduction to the details of implementing schedulers. And it describes pretty accurately how the Linux kernel scheduler works too.

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    11. lis 2019.

    I love this beyond what would be reasonable

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    21. ruj 2019.

    Moore’s Law is Not Dead Jim Keller () UC Berkeley EECS Colloquium

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  18. 5. lis 2019.

    “Gcc under the hood” – a beginner tutorial that explores under the hood of the gcc compiler. Video: Slides: Blog:

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    17. ruj 2019.
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  20. proslijedio/la je Tweet
    28. kol 2019.

    5G may reduce weather forecast accuracy to 1980s reduction would give coastal residents 2-3 fewer days to prepare for a hurricane

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