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Viewing profile — gnurizen

gnurizen

HN member
Joined
Fri, Oct 08, 2021, 6:31 PM UTC
HN karma
30
Public activity
16 items

About gnurizen

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Recent public activity

  1. comment
    Comment #48630806

    A lot of times the performance is data dependent, like randomized data can result in poor warp utilization where as sorted data can be much more efficient because you have less war…

  2. comment
    Comment #48544994

    Thanks! I think most performance debugging happens during development, what we're bringing to the table is exposure of system behavior in production which often diverges because of…

  3. story
    Show HN: Continuous Nvidia CUDA PC Sampling Profiler

    Blog post about how we extended our open source profiler to include support for continuous production PC sampling.

  4. comment
    Comment #46219781

    Details of how we integrated USDT support in Parca modeled after libbpf.

  5. story
  6. comment
    Comment #45747227

    CUPTI is kind of a choose your own adventure thing, as you subscribe to more stuff the overhead goes up, this is kind of minimalist profiler that just subscribes to the kernel laun…

  7. comment
    Comment #45747173

    This profiler is focused on kernel execution but we do scrape high level metrics ( https://www.polarsignals.com/blog/posts/2025/06/04/latest-in... which is based on https://github.…

  8. comment
    Comment #45747040

    Yeah the quickstart guide covers docker, k8s and "raw" binary options: https://www.parca.dev/docs/quickstart/

  9. comment
    Comment #45746353

    Author here, would be happy to field any questions or feedback!

  10. story
    Show HN: eBPF memory profiling at OOM kill time

    Check out our new project to add some insight into OOM kill events for Go programs. Source code: https://github.com/parca-dev/oomprof/ Description of how it was put together: https…

  11. comment
    Comment #42221181

    It should work to profile neovim, does it use the luajit shared library or is it statically linked? You could run parca-agent and set up a filter to discard all non-neovim samples …

  12. comment
    Comment #42209472

    I wrote the code and the blog, happy to answer any questions/comments. Very eager to have folks try it out and give feedback! Like is my meme game strong or very strong? J/K There'…

  13. comment
    Comment #42131588

    Thanks for the kind words Mike, will correct ASAP! Kinda surprised that’s the only thing I got wrong, thanks for taking the time to read it.

  14. comment
    Comment #37689404

    The answer you are looking for is no. No one can translate this into what humans should eat to avoid heart disease, that will require a ton more research. We still haven't even fig…

  15. comment
    Comment #37689291

    I would bet a dollar inhibiting TOR via protein restriction turns out to be one of those things thats good for mice but bad for humans. Whatever aging gains you get are probably ov…

  16. comment
    Comment #28802552

    Anybody else chuckling at the irony here that eBPF is inspired by dtrace which was invented by Cantrill?