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  1. proslijedio/la je Tweet
    1. velj

    I'd really like to see the page pool used within the Intel driver (yeah, yeah, better hack it already! 😝) I believe this is the path for merging the AF_XDP zero-copy code with the "vanilla" one.

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  2. proslijedio/la je Tweet
    23. sij
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  3. proslijedio/la je Tweet
    23. sij

    New Tutorial accepted for 0x14! Maxim Mikityanskiy will provide a tutorial on how to add zero copy AF_XDP support to a Linux network driver. He will be going over the details of the mlx5e driver as an example. Come, learn, engage

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  4. proslijedio/la je Tweet
    19. sij

    This is 🤯 using historical data to predict container performance and using cgroups to control CPU placement. CFS makes an attempt at all of these things (except using PMCs to guide placement) but it’s always going to be imperfect because...

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  5. proslijedio/la je Tweet
    10. sij

    So even more... new pahole runs without vmlinux - it can feed symbols from thin air! (I mean BTF)

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  6. proslijedio/la je Tweet
    10. sij

    Ever wondered how large is struct sk_buff or struck sock? Nothing simpler! $ pahole -C sock src/linux/vmlinux | tail $ pahole -C sk_buff src/linux/vmlinux | tail (as usual, suggested by )

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  7. proslijedio/la je Tweet
    17. stu 2019.

    Here's the live request flow on a large subset of the 1500+ microservices on the Platform. A lot of things are involved in running a bank! If you used the app at around 3pm today, you might be represented😃

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  8. proslijedio/la je Tweet
    24. pro 2019.
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  9. proslijedio/la je Tweet
    17. pro 2019.

    exporter now comes with btf support on fresh kernels, so you can see source code interleaved with xlated and jited version: (provided by )

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  10. proslijedio/la je Tweet
    13. pro 2019.

    Facebook's Martin KaFai Lau has developed BPF STRUCT_OPS to allow implementing tcp_congestion_ops (and more) in BPF.

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  11. proslijedio/la je Tweet
    6. pro 2019.

    Knuth did it: The Art of Computer Programming, Volume 4, Fascicle 5 is out!!! (Was supposed to come out in 1960.)

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  12. proslijedio/la je Tweet
    29. stu 2019.

    We learned that the Norwegian Police ICT is using Cilium. We apologize to all Norwegians for routing all those parking violation tickets.

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  13. proslijedio/la je Tweet
    15. stu 2019.

    TIL: 's Cilium CNI implementation for uses eBPF to transparently rewrite `connect(2)` system calls (and others) from Service ClusterIPs to some Endpoint PodIP 🤯

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  14. proslijedio/la je Tweet
    14. stu 2019.

    Brand new Arm optimization guides for SVE and NEON are out now, including a guide of coding for SVE versus NEON ()! NEON: SVE: Our work on HPCG and the SVE methodology is featured too!

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  15. proslijedio/la je Tweet
    12. stu 2019.
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  16. proslijedio/la je Tweet
    5. stu 2019.

    Fragment from an awesome CV (found on the internet): I am a good programmer. ... I realised academia wasn't for me. I don’t have any formal education in computer science but through reading and working with others, I have learned more about it than many people who have...

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  17. proslijedio/la je Tweet
    16. lis 2019.

    Sure sex is great but have you ever tried getting really good at git?

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  18. proslijedio/la je Tweet
    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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  19. proslijedio/la je Tweet
    1. lis 2019.

    A FlameScope on pgbench --no-vacuum --protocol=prepared --builtin=select-only --jobs=1 --client=1 If you think you stress one database thread with this, it is not. The most active samples are in context switch. Most of elapsed time is network roundtrip.

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  20. proslijedio/la je Tweet
    27. ruj 2019.

    Here are the final slides for my RCU talk for : There were some new updates for tasks RCU since the last revision. Glad to speak/attend and see you next time!

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