• 0 Posts
  • 142 Comments
Joined 2 years ago
cake
Cake day: June 25th, 2023

help-circle


  • Shouldn’t it be more efficient to download only the changes and patch the existing files?

    As people mentioned, that becomes problematic with a distro like arch. You could easily be jumping 5-6 versions with an update, with some more busy packages and updating less frequently. This means you need to go through the diffs in order, and you need to actually keep those diffs available.

    This actually poses two issues, and the first one is that software usually isn’t built for this kind of binary stability - anything compiled/autogenerated might change a lot with a small source change, and even just compressing data files will mess it up. Because of that, a diff/delta might end up not saving much space, and going through multiple of them could end up bigger than just a direct download of the files.

    And the second issue is, mirrors - mirrors need to store and provide a lot of data, and they’re not controlled by the distribution. Presumably to save on space, they quickly remove older package versions - and when I say older, I mean potentially less than a week old. In order for diffs/deltas to work, you’d need the mirrors to not only store the full package files they already do (for any new installs), but now also store deltas for N days back, and they’d only be useful to people who update more often than every N days.




  • I don’t think OOP’s nature makes them necessary, so much so as it enables them and popular programming principles encourage them. I think they’re a good thing, especially if there’s a way around them in case you can’t get the public interface changed and it doesn’t work for you, especially for performance reasons, but that should be done with care.

    Funny story, when modding Unity games using external modloaders you’re writing C# code that references the game’s assemblies. And with modding you often need to access something that the developers made private/protected/internal. Now, you can use reflection for that, but a different trick you can use is to publicize the game’s assemblies for referencing in your code, and add an attribute to your assembly that tells the runtime to just… Let you ignore the access checks. And then you can just access everything as public.


  • If it was a single question, that does sound lame, my other thought was that those “online polling tools” might not be viable because you can’t put internal company communications into them… But if it’s stuff like food choices or something, then that might also not be a problem.

    That said, my point still stands - what you describe does sound like what I’m saying. If you make a sheet with a dedicated field to put the answer into, it should be possible to reliably automate pulling out answers from all the files with excel-level knowledge, and without any additional sites or servers, just spreadsheet editing software and email.




  • Both java and go seem excessively complex at runtime for fundamental system utilities, featuring garbage collection. Rust, on the other hand, keeps the complexity in the compiler and source, keeping the runtime code simpler. And of course it’s doing that while trying to make it easier to manage memory and harder to make mistakes, without forcing extra runtime logic on you.


  • I think most of the work is in the fact that there often isn’t an “equivalent call”, and it can be quite a lot of code to make it work. One funny thing is the whole esync-fsync-ntsync issue, where synchronization is done differently on Linux and on windows, and translating it was a big performance hit, and difficult to do accurately. If I understood correctly, esync, fsync and ntsync were a series of kernel patches implementing additional synchronization code in the kernel, with ntsync actually replicating the windows style.









  • That actually sounds like a fun SCP - a word that doesn’t seem to contain a letter, but when testing for the presence of that letter using an algorithm that exclusively checks for that presence, it reports the letter is indeed present. Any attempt to check where in the word the letter is, or to get a list of all letters in that word, spuriously fail. Containment could be fun, probably involving amnestics and widespread societal influence, I also wonder if they could create an algorithm for checking letter presence that can be performed by hand without leaking any other information to the person performing it, reproducing the anomaly without computers.