• 0 Posts
  • 12 Comments
Joined 3 years ago
cake
Cake day: July 21st, 2023

help-circle
  • There’s this Computer Science 101 concept called Amdahl’s Law that was taught wrong as a result of this - people insisted ‘more processors won’t work faster,’ when what it said was, ‘more processors do more work.’

    You massacred my boy there. It doesn’t say that at all. Amdahl’s law is actually a formula how much speedup you can get by using more cores. Which boils down to: How many parts of your program can’t be run in parallel? You can throw a billion cores at something, if you have a step in your algorithm that can’t run in parallel… that’s going to be the part everything waits on.

    Or copied:

    Amdahl’s law is a principle that states that the maximum potential improvement to the performance of a system is limited by the portion of the system that cannot be improved. In other words, the performance improvement of a system as a whole is limited by its bottlenecks.




  • Absolutely NEVER mark anything from an online email provider you want to keep as spam. They use shared systems, it’s not just spam for you, but potentially for everyone on that email provider. That’s one way to protect people from receiving spam, 100 users marked that same newsletter email as spam? Alright, the newsletter will go to the spam folder for the next 20k users.

    If you mark legitimate emails as spam for fun you’re fucking up the system (and give the sender a massive headache if suddenly every @gmail.com receiver puts their emails into the spam folder).


  • Vlyn@lemmy.worldtoMemes@lemmy.ml""Higher"" ""Quality""
    link
    fedilink
    English
    arrow-up
    7
    arrow-down
    1
    ·
    3 years ago

    But they do.

    For example on desktop if you skip through a video while it’s set to auto (1080p) at some point it will fall down to 480p. Maybe because YouTube thinks your connection has an issue, or maybe they just want to save bandwidth. If you manually set it to 1080p it stays there.

    The whole thing is annoying.



  • Vlyn@lemmy.worldtoMildly Infuriating@lemmy.worldThanks Spez!
    link
    fedilink
    English
    arrow-up
    1
    arrow-down
    1
    ·
    3 years ago

    You can believe what you want, but I literally did this a month ago. Editing my comments, then submitting a GDPR request and getting a large package of my data. Showing every up and downvote for example (which was over a million entries, ouch) and every comment and post I ever made in the last 11 years.

    Deleting your comment does not delete the database entry. It’s up to discussion if that conforms to GDPR, because theoretically you could have personal data in your comment… but for now they don’t delete them. So obviously your GDPR request will contain deleted comments, as they are still right where you left them (and you agreed to the terms and conditions of Reddit which technically make any content you post on their platform their content legal wise).

    If you edited your comment and then deleted it and the GDPR request showed the original comment… then that’s a different matter. As far as I tried out they don’t keep the comment from before the edit around. Though if you do it too fast, instant edit and delete maybe something gets messed up and the edit doesn’t stick. But this hasn’t happened to me yet (except I edit more than one comment in 3 seconds, then it gets rate limited).

    Reddit admitted they only keep the last version of your comments around, so if you edit them with random crap it’s as close to deletion as you can get.


  • That’s not true. I edited (nearly) all my comments. Then did a GDPR request. All the comments I touched were overwritten in there.

    I didn’t catch all of them though, it’s damn tough to get every single one. If you just go through your profile page by page they don’t show all. If you select “Top” comments you find more. If you select “Controversial” you find even more and so on. So I only managed to overwrite maybe 95% or something, but it’s good enough.

    Oh and they also have caching and spam protection. So you have to slowly overwrite comments, about one comment every 3 seconds or you get rate limited. And directly after overwriting the comment it might still show up in the old version till their caching servers catch up. So maybe you thought you overwrote your comments, but in reality the requests failed in the background because you went too fast.




  • It’s a language model, it can’t even do math reliably. Yes, it produces code that works sometimes, but it also hallucinates functions that don’t exist or can introduce bugs you won’t notice at first glance.

    And writing a script is different than extending an existing code base. How often do you really start a greenfield project?

    I wouldn’t even know how to input a code base into ChatGPT to extend, do you just throw in hundreds of files with a 100k+ lines of code?