11 comments

  • kvakvs 5 hours ago
    Since Doom renders the image with vertical columns of pixels (floor, lower wall, portal if exists continues rendering the other sector, then upper wall then ceiling) and since browsers are very good at drawing the sprites out of larger textures... You could send vertical divs shaded with the sector light level and picking the correct textures. Instead of hundreds per column you will have like 5 divs on average per column and they will be textured shaded and scaled by the browser?
    • ffsm8 4 hours ago
      I believe he stated in the beginning pretty clearly that the point of this exercise was to stress test the Liveview performance.

      Making this more efficient would be kinda counter productive

      • jasonjmcghee 3 hours ago
        I agree, but it certainly wasn't performant (in the video).

        I'd be curious to see what parameters are required for a smooth / playable demo.

        Or am I missing something?

        (Slow input with no interpolation?)

        • andros 2 hours ago
          To improve fluidity, all you have to do is change the frames per second or the resolution, although the goal is not to make it playable. :D
      • andros 2 hours ago
        That is!
    • oersted 2 hours ago
      At that point just run the browser on the server and use proper cloud gaming tech to stream the screen and have low-latency interactivity.
      • andros 1 hour ago
        If it's streaming at 60 fps, the bottleneck is in the browser, which is doing what it can :)
  • elzbardico 11 minutes ago
    This shows how modern hardware is ridiculously powerful.
  • rockyj 4 hours ago
    Very impressive! Worth noting that HTMX also has a WebSocket extension - https://v1.htmx.org/extensions/web-sockets/ so one could potentially also do "live views" in more performant runtimes like JVM or Node.js
    • andros 2 hours ago
      My first version of Django LiveView used HTMX. WebSocket connectivity is one aspect; there is another part of logic and architecture where it falls short.
      • BiteCode_dev 2 hours ago
        Can you tell us more? Espacially, how does they both fair with auth.
        • andros 1 hour ago
          There is native middleware in Channels. I have it documented with a brief example in the documentation, and I also mention some security measures.
  • crimsonnoodle58 3 hours ago
    So SSR is 50ms and LiveView is 10ms, what test was being performed to achieve these timings? Rendering a sample page or rendering doom?

    Also LiveView is described as "Build rich, dynamic user experiences with server-rendered HTML without writing a single line of JavaScript." and their example uses django templating to render the HTML that is returned.

    So what are we really measuring here? The speed up seems to solely come from WebSockets, and maybe skipping some Django middleware. Anyone care to elaborate?

    • aeonfox 3 hours ago
      I assume Django LiveView is directly inspired by Phoenix LiveView. It's essentially diffing template expansion on the backend and sending patches to the frontend via websockets where JS then applies the patches. Clicks and other interactions are also transmitted to the backend where state for the socket is updated and the template is reevaluated, hence completing the loop.
      • andros 2 hours ago
        The concept is correct, but it's a bit simpler Its architecture is explained in the documentation, that's why it's so fast!
  • lukevp 2 hours ago
    It definitely isn’t running at 60 fps in the video. Is this css performance or something? Or this not really running as fast as it’s stated?
  • scop 2 hours ago
    Tangential question: is it common for frameworks to use the same name as a package from another framework? I had never heard of Django LiveView, but have used Phoenix’s Liveview and assumed that’s what it was. Not sure if I like that? I.e. does it imply some sort of endorsement or partnership? I do like that Laravel went with Livewire to distinguish it.
    • andros 2 hours ago
      There are two things I'm really bad at: invalidating the cache and naming frameworks. It has that name because it's very inspired. It's an adaptation of Django.
      • elzbardico 10 minutes ago
        And well done! I really prefer very descriptive names, even at the expense of originality than some ridiculous invention like "Nano Banana".
  • ksec 3 days ago
    In the blog post it uses "600,000 divs/second!" and "10,000 divs using its template engine" while the heading uses 600.000.

    I assume the difference in usage of full stop / period or comma is accidental?

    • andros 3 days ago
      Yes, you right hehe. I had fixed!
  • pallar 2 hours ago
    > 600.000 divs/segundo

    Basado

  • hoistbypetard 2 hours ago
    That is beautifully ridiculous! Thank you for doing that and sharing.
  • pawelduda 6 hours ago
    Shame Phoenix LiveView is missing from the comparison
    • leobuskin 6 hours ago
      It's only django-related third-party packages comparison (and SSR itself), would be a bit strange to compare with a different language/stack and/or framework
      • isodev 4 hours ago
        With focus on LiveView, I think it’s interesting to see how the runtime influences the results. Django and Phoenix have a very different concurrency model
  • agentifysh 6 hours ago
    if only i could run django on cloudflare workers

    guess i could run it on a dedicated server

    would be nice if we can get django and liveview working without a server

    • fulafel 2 hours ago
      They just announced many improvements to Python workers earlier this month: https://blog.cloudflare.com/python-workers-advancements/

      https://github.com/G4brym/django-cf has a template (among other things) to get started

      Another option is the containers stuff mentioned in sibling comment but it's not so FaaS.

    • evilmonkey19 5 hours ago
      I wish we could host Django apps with the tasks and everything on Cloudflare workers. Also it would be nice to have a DB like SQLite within Cloudflare.
      • yoavm 4 hours ago
        Cloudflare D1 is SQLite within Cloudflare.
      • BiteCode_dev 3 hours ago
        Why, because it's free?
    • slig 3 hours ago
      Should be possible with this, no?

      https://developers.cloudflare.com/containers/

    • isodev 4 hours ago
      Bunny has very solid edge runtime if you manage to squeeze it into wasm or “magic containers” so it’s just a pod

      https://bunny.net/cdn-lp

    • leobuskin 6 hours ago
      you can do it on wasmer's workers, their last wasm/python approach is pretty solid (compatibility, performance). it's sad to say, but after 4 years of "beta" Python support on CF workers - it's still ugly. I dunno who was responsible for such a neglect, but even with the last changes - total fiasco
      • gscho 3 hours ago
        Why is it “ugly”?