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Cake day: June 17th, 2023

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  • Um no. Containers are not just chroot. Chroot is a way to isolate or namespace the filesystem giving the process run inside access only to those files. Containers do this. But they also isolate the process id, network, and various other system resources.

    Additionally with runtimes like docker they bring in vastly better tooling around this. Making them much easier to work with. They are like chroot on steroids, not simply marketing fluff.





  • Transactions should be short lived, they block data on the database side from acessing those tables or rows. Best to not jole onto a transaction that long and instead gather your data first or rethink your access patterns to your data base.

    But arc does give you a try_unwrap which returns the inner type if there is only one strong copy left. And mutex gives you an into_inner to move out of it. But really transactions should not be held for a long period of time.




  • Why do we need tests to be understandable by any human. IMO tests that go to that degree do so by obscuring what logic is actually running and make it harder as a developer to fully understand what is going on. I would rather just keep tests plain and simple with as few abstractions around them as possible.

    Cypress cy.get(‘h1’).contains(‘Result’)
    Playwright await expect(page.getByTitle(‘Result’)).toHaveCount(1)
    Testing library expect(screen.getByTitle(/Result/i)).toBeTruthy()

    We can nit pick about syntax here and I prefer the cypress one as it immediately tells me what it is doing and I am not even familiar with those frameworks but:

    UUV Then I should see a title named “Result”

    That tells me nothing about what it is actually doing. How is the framework meant to interpret that or similar things? It is imprecise and I have no way to validate it will do what I expect it should. I do not trust AI or LLMs enough to translate that into a workable test. Even if it works for simple situations like this how does it grow to far more real and complex test cases?

    It would be one thing to use a LLM to generate a test for you that you can inspect - but to generate it probably on every run quite likely without being able to see what it did? Um No thanks. Not with the current state of LLMs.

    At least I assume it is LLM based as there is no other way to do this as far as I am aware, though they dont seem to mention it at all.




  • Of these 25 reasons, most apply to a lot of languages and are far from Java exclusive or even java strong points. Pick any mainstream language and you will hit most of the benefits it lists here. With quite a few being almost meaningless. Like this:

    Java/JVM/JIT can achieve runtime optimization on frequently run code, especially on something that’s running as a service so that you avoid the overheads from JVM startup times.

    Compiled languages generally don’t need a JIT or to be optimized at runtime as they are compiled and optimized at compile time. And most language that don’t have a runtime like Javas already run faster than Java without its heavy startup time. Language with JITs are generally interpreted languages which have these same benefits as java lists here. Though do often suffer from other performance issues. But really at the end of the day all that really matters is how fast the language is and how good its startup times are. Java is not ahead of the pack in either of these regards and does not do significantly better then other languages in its same class (and often still drastically sucks for startup time).

    Or

    Much of a company’s framework can be stable Java, with Scala or Clojure-backed business logic.

    Many languages you can embed other languages inside. Nothing really special about scala or clojure here except that they work well with java. And I don’t really see this as a major benefit as most places I see dont separate their core code and business logic into different languages.

    And the remaining issues that are more java specific are:

    Java was one of the first mainstream GC strongly typed OOP languages. So it got its niche.

    Java has been one of the main programming languages taught in colleges and universities in the last few decades.

    Java’s Legacy Migration: Many banks in particular migrated legacy systems to Java in the early 2000’s when it was getting a lot of popularity and the industry was collectively in the midst of a huge OOP fever dream.

    Which all paint a picture - it was popular long ago and taught in universities and lots of business pushed it when back in the day. And now it is hard to move off it.

    And lastly:

    Oracle

    What? How is this a point? If anything this should be a massive negative.

    Not exactly 25 reasons to pick java in financial enterprise.


  • It might. Depending on how much tension there is. Too much and it will cause the filament to slip in the extruder causing under extrusion. If you are not seeing signs of under extrusion then you are fine for now - but that might change if you change filament or anything else. I would try to lower how much tension the filament is under to avoid problems in the future. Otherwise it would be something to keep in mind if you do start seeing signs of under extrusion.


  • When I change devices or hit file size limits, I’ll compress and send things to my NAS.

    Whaaatt!?!!? That sounds like you don’t use git? You should use git. It is a requirement for basically any job and there is no reason to not use it on every project. Then you can keep your projects on a server somewhere, on your NAS if you want else something like github/gitlab/bitbucket etc. That way it does not really matter about your local projects, only what is on the remote and with decent backups of that you don’t need to constantly archive things from your local machine.


  • Did you read the article at all?

    “Putting all new code aside, fortunately, neither this document nor the U.S. government is calling for an immediate migration from C/C++ to Rust — as but one example,” he said. “CISA’s Secure by Design document recognizes that software maintainers simply cannot migrate their code bases en masse like that.”

    Companies have until January 1, 2026, to create memory safety roadmaps.

    All they are asking for by that date is a roadmap for dealing with memory safety issues, not rewrite everything.




  • You could do a lot of things. Rust had a gc and it was removed so they have already explored this area and are very unlikely to do so again unless there is a big need for it that libraries cannot solve. Which I have not seen anyone that actually uses the language a lot see the need for.

    Not like how async was talked about - that required a lot if discussion and tests in libraries before it was added to the language. GC does not have anywhere near as many people pushing for it, the only noise I see is people on the outside thinking it would be nice with no details on how it might work in the language.


  • So someone that is not involved in rust at all and does not seem to like the language thinks it will get a GC at some point? That is not a very credible source for such a statement. Rust is very unlikely to see an official GC anytime soon if ever. There are zero signs it will ever get one. There was a lot of serious talk about it before 1.0 days - but never made it into the language. Similar to green threads which was a feature of the language pre 1.0 days but dropped before the 1.0 release. Rust really wants to have a no required runtime and leans heavy on the zero-cost abstractions for things. Which a GC would impose on the language.


  • There are quite a few places where a GC is just not acceptable. Anything that requires precise timing for one. This includes kernel development, a lot of embedded systems, gaming, high frequency trading and even latency critical web servers. Though you are right that a lot of places a GC is fine to have. But IMO rust adds more than just fast and safe code without a GC - lots of people come to the language for those but stay for the rest of the features it has to offer.

    IMO a big one is the enum support it has and how they can hold values. This opens up a lot of patterns that are just nice to use and one of the biggest things I miss when using other languages. Built with that are Options and Results which are amazing for representing missing values and errors (which is nicer than coding with exceptions IMO). And generally they whole type system leads you towards thinking about the state things can be in and accounting for those states which tends to make it easier to write software with fewer issues in production.


  • but imagine if you have to perform this operation for an unknown amount of runtime values

    This is a poor argument. You dont write code like this in rust. If you can find a situation where it is an actual issue we can discuss things but to just say imagine this is a problem when it very likely is not a problem that can be solved in a better way at all let alone a common one is a very poor argument.

    Typically when you want an escape from lifetimes that means you want shared ownership of data which you can do with an Arc. Cow and LazyLock can also help in situations - but to dismiss all these for some imagined problem is a waste of time. Comes up with a concrete example where it would help. Very likely you would find another way to solve the problem in any realistic situation you can come up with that I would suspect leads to a better overall design for a rust program.

    I would say this is just a straw man argument - but you have not even created a straw man to begin with, just assume that one exists.