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Viewing profile — majke

majke

HN member
Joined
Thu, Oct 29, 2009, 8:18 PM UTC
HN karma
5,502
Public activity
898 items

About majke

  Enthusiastic geek         https://idea.popcount.org
                            https://github.com/majek

Recent public activity

  1. comment
    Comment #49166734

    I don't think you can buy a single "MI300X" unit, right? Only the box with x8 of these at a cost of ~250K EUR.

  2. comment
    Comment #49156101

    > Across all tested generations, divergent paths serialize linearly with the number of paths k, following T(k)≈sk with no super-linear reconvergence penalty. Warp execution efficie…

  3. comment
    Comment #49083116

    There is more! I started to figure out how ADC/DAC chips actually work. I believe our CM6533 and its competitor the CM108 both use delta-sigma. The output isn't a staircase of thos…

  4. story
  5. comment
    Comment #49067068

    Many countries now assume you have a phone. For example getting UK visa requires a smartphone. I don't think going without a phone is feasible nowadays. Another question is if goin…

  6. comment
    Comment #48970175

    I'm a heavy user of NVIDIA LOP3 instruction (uint32). I wonder when AMD will finally support it well.

  7. comment
    Comment #48931867

    If you want to know more about the cache invalidation in the whole pipeline of DNS requests, take a look at this https://blog.cloudflare.com/tld-glue-sticks-around-too-long/ I hint…

  8. comment
    Comment #48684004

    sockmap has been through a lot of changes since then. Some done by CF (hi Jakub!) some by others, including bytedance and isovalent. Recently there has been a push to figure out th…

  9. comment
    Comment #48646218

    This is great. So proper 386 on an fpga? How cool is that.

  10. comment
    Comment #48417202

    > A lot of self-hosters running CF tunnels because they don't know better also contributes. Are you saying CF documentation is better than Computer Science / Networking education r…

  11. comment
    Comment #48416864

    (I'm ex CF) This is backwards. Nobody "allowed" anyting. CF serves a customers need. You can argue with the solution but you can't argue with the core problem. It's more healthy to…

  12. comment
    Comment #48362225

    Lysk | lysk.ai | AI/Geo Engineer | Full-time | Warsaw / Paris Lysk is a European defence startup, based between Paris and Warsaw. Our mission is to create modern software tailored …

  13. comment
    Comment #48214190

    I've had more success. Flipper taught me about sdr, and I was able to reverse quite a lot from my garage door pilot. Then I went on an adventure of cracking Keeloq cipher, and I ha…

  14. comment
    Comment #47834291

    No later than last week I was fishing in my boxes for two pieces of 2N2222 for a pet project!

  15. comment
    Comment #47761680

    > As of today, the full reference footage hasn't been released online. A pity

  16. comment
    Comment #47714340

    I’m also contemplating a lego sorting machine.

  17. comment
    Comment #47084714

    Not necessarily. In classic C we often build complex state machines to handle errors - especially when there are many things that need to be initialized (malloced) one after anothe…

  18. comment
    Comment #46676220

    Ispc looks interesting. Does it work with amd? They hint on gpu’s , i guess mostly intel ones?

  19. comment
    Comment #46492468

    So... does it mean that nobody reads the law? Is it good or bad? What is the takeaway?

  20. comment
    Comment #46266975

    Richard Jones is still alive and kicking https://x.com/metabrew

  21. comment
    Comment #46261755

    Back in 2022 I published a doc on how the egress IPs work at Cloudflare: https://blog.cloudflare.com/cloudflare-servers-dont-own-ips-... In summary, the location at which an IP egr…

  22. comment
    Comment #46234683

    Hey! Popcount used to be my favorite instruction. Now I think I prefer LOP3 though :)

  23. comment
    Comment #46038251

    > Coordinator sees Node A has significantly fewer rows (logical count) than the cluster average. It flags Node A as "underutilized." Ok, so you are dealing with a classic - you mea…

  24. comment
    Comment #45981963

    Questions for "questions for cloudflare" owner

  25. comment
    Comment #45962541

    > > faster - less context switches and copies This is very much newbie way of thinking. How do you know? Did you profile it? It turns out there is surprisingly little dumb zero-cop…