Krister Walfridsson

@kwalfridsson

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

Lund, Sweden
kristerw.blogspot.com
Vrijeme pridruživanja: studeni 2010.
38 fotografija ili videozapisa Fotografije i videozapisi

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  1. 2. velj

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

    19 proslijeđenih tweetova 56 korisnika označava da im se sviđa
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  2. 26. pro 2019.

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

    1 proslijeđeni tweet 7 korisnika označava da im se sviđa
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  3. 20. pro 2019.

    Interesting blog series about the web search engine

    1 proslijeđeni tweet 2 korisnika označavaju da im se sviđa
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    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?

    6 proslijeđenih tweetova 6 korisnika označava da im se sviđa
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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

    1 reply 6 proslijeđenih tweetova 9 korisnika označava da im se sviđa
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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.

    13 replies 116 proslijeđenih tweetova 411 korisnika označava da im se sviđa
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  7. 9. stu 2019.

    "Bad methodology makes everyone happy”

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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

    1 reply 2 proslijeđena tweeta 15 korisnika označava da im se sviđa
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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:

    10 proslijeđenih tweetova 41 korisnik označava da mu se sviđa
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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!

    1 reply 6 proslijeđenih tweetova 10 korisnika označava da im se sviđa
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    25. lis 2019.

    GCC's assembler syntax

    42 proslijeđena tweeta 101 korisnik označava da mu se sviđa
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    22. lis 2019.

    Amazing talk about hardware security on Xbox.

    3 proslijeđena tweeta 10 korisnika označava da im se sviđa
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    21. lis 2019.

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

    15 proslijeđenih tweetova 45 korisnika označava da im se sviđa
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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.

    I really enjoyed reading "Making the Tokio scheduler 10x faster" It's got a bit of everything: data structures, low-level tuning, tool-assisted correctness, performance metrics.
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    7 proslijeđenih tweetova 28 korisnika označava da im se sviđa
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    11. lis 2019.

    I love this beyond what would be reasonable

    5 replies 42 proslijeđena tweeta 128 korisnika označava da im se sviđa
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    21. ruj 2019.

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

    3 proslijeđena tweeta 26 korisnika označava da im se sviđa
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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:

    37 proslijeđenih tweetova 86 korisnika označava da im se sviđa
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    17. ruj 2019.

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    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

    I've got a literally life and death one. 5G cell networks are going to set back weather forecasting ~30 yrs bc they operate at frequencies too near that of water vapor in the atmosphere, harming measurements. We'll lose 2-3 days' worth of accuracy in hurricane path forecasting.
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    4 proslijeđena tweeta 4 korisnika označavaju da im se sviđa
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