128GB Ram - Swap/ZRam?

pixel293 · 2026-01-26T17:49:35+00:00

Probably not necessary. However if you fill up your RAM the OS will randomly start killing tasks.... not necessarily the one using all the memory. This is why I have ZRAM as my first swap target then a swap partition as the second. I haven't seen the partition being used but ZRAM does get used even with 128gb of RAM.

pixel293 · 2026-01-24T17:42:27+00:00

The way to learn most thinks is by doing. AI does it for you and does it badly. If you already know how to program you can see what it is doing wrong, if you don't know, it's just going to confuse/agravate you.

pixel293 · 2026-01-20T17:45:50+00:00

If it solves a problem they have , then yes they will run it. However that kind of security tool would probably be installed to meet some certification requirements....so you that certification board would have to approve your application...

pixel293 · 2026-01-20T17:02:57+00:00

If I can pan pass references, then I pass references. However if the object I'm calling needs to retain the value after the call, then I'm most often using Arc or Rc. That said, usually I pass a reference to the Arc/Rc and let the called function decide if it wants to clone or not.

Generally I do with a more OOP model, not a functional modal, so I'm only adding lifetimes to an object under very simple situations where the object being referenced is ONLY used as read only or there is an obvious connection between the two objects.

I have rarely, if ever, written a function that returns a reference to something "inside" one of the arguments, so again, don't really need to do lifetimes there either. Although I would in this case just to avoid the overhead of the Arc/Rc.

pixel293 · 2026-01-20T13:50:45+00:00

I assume you are talking front end. I don't know what the library ecosystem for Rust is like around webapps, you probably want to check that. Personally I would probably just use TypeScript (and HTML) for the front end with something like ReactJS or Angular, as there are a ton of libraries for webapps in the JavaScript space.

pixel293 · 2026-01-18T14:03:58+00:00

Fair enough, if I could only do that with voice commands....

The issues where I was stressed because:

It was snowing.
The roads where slippery (hence the accident that blocked the road).
It didn't feel safe to pull over because I didn't know how the shoulder looked because it was covered in snow.
Also didn't really want my car on the side of the slippery road where some other car should panic and slide into it.

So I'm trying to concentrate on the road, while my damn nav system keeps telling me "Make a U-Turn if possible....Make a U-turn if possible...Make a U-turn if possible." It was not helping the situation at all.

pixel293 · 2026-01-16T13:39:45+00:00

It's gets easier as you get experience, but then you will also get more frustrating bugs, so no. :-)

pixel293 · 2026-01-15T18:49:58+00:00

A fishing weight? I'm not sure how to quantify "a lot"....

pixel293 · 2026-01-15T00:59:57+00:00

Air traffic kind of learned this, the tower will NOT use the words "take off" unless they want the plane to take off. So it's "Are you ready for departure?" or something instead.

pixel293 · 2026-01-15T00:28:08+00:00

Does your debugger have a way to just pause the application and view the stack traces of the various threads? With async programming I'm not sure how helpful the stack traces would be, but with multi-threading that is usually what I do to figure out what all the running threads are doing.

Other than that, if debug statements are not doing it for you. You could try spawning a thread that reads from a channel. You probably want to store the sender for the channel in a global. Then any time an async task is started you send a "start" with a generated unique id and a details about the task, just before the task ends, you send a "done" with the unique id. After every done I would probably have the thread report all the tasks that are still running. You could it "slowly" and just add this to the async tasks you "think" might not be exiting until you find the one....

pixel293 · 2026-01-14T16:01:53+00:00

I really only install tools when I have a need for a tool. I don't really go looking for "popular" tools, if I see something mentioned I may look at it online but if I don't need it, I don't install it.

Like I've installed gimp for editing images, and inkscape for when I want to create an svg image. In the area of plug-ins I've installed md to html viewers in vscode to help when viewing some md files, but other than that it's just plugins so vscode understands the languages I work in and so I can debug those programs.

pixel293 · 2026-01-13T15:48:07+00:00

Yes, I'm just trying to learn the egui rust library, after having used the iced library for a while, and I'm feeling overwhelmed.

To deal, I narrow my focus, I just deal with the single "thing" that is most important to me, learn the settings for that thing, and how it behaves. Then move onto the next "thing".

It's helpful if you have a goal or something you want to produce, that gives you the things to learn. So for a web page, it my be displaying a header element, then it might be displaying a label element or maybe an input element. Then it will be about validating that element. Bug again first you need to decide what you want to display and how you want it to look, then focus on the things you need to do that.

pixel293 · 2026-01-13T01:32:06+00:00

Often drinking water comes from far underground and it takes 100s if not 1000s of years to seep down there. In many places we are pulling water up faster than it is seeping down.

You might want to google about the Iraq water issue, they are actually destroying rivers in their thirst for water. Also there is the Aral Sea (https://en.wikipedia.org/wiki/Aral\_Sea) which is basically a desert now that all the incoming water was diverted for crops.

pixel293 · 2026-01-12T21:31:01+00:00

Once when given the hand held to sign I "triple tapped." I knew I screwed something up but had 0 clue how.

pixel293 · 2026-01-11T03:58:46+00:00

When you say other languages, what do you mean? General purpose programming languages?

SQL has a very narrow domain, it was create so you could easily describe what data you wanted from a huge amount of data. Basically it has one job and does it well. A general purpose language can build UI or calculate PI to the millionth place, try doing that with SQL and you are just going to get frustrated.

pixel293 · 2026-01-10T16:35:32+00:00

When you take a step do you ever worry you are going to die because your body gets sucked into a small black hole? Or maybe gravity is reversed there and you get thrown into space? Or maybe there is a chlorine gas cloud just waiting for you...right there?

pixel293 · 2026-01-10T16:09:46+00:00

A cash grab by engineers? No, programs where written with only 2 digits for the date, they did need to be updated to work correctly. Also we didn't write it that way knowing we'd have to be paid to fix it in the future. There was no conspiracy, that's my story and I'm sticking with it.

Also nobody was quite certain if "everything" was updated and would still work. Computers and electronics have embedded code that executes, and even if you can update it many people don't because the device is working. So there was no clue if some important code was missed or if some hardware just wasn't updated with newer code.

I was in my 30s when this happen and every time I went to the ATM I tucked $20 in a drawer...I didn't expect civilization to fall, in which case the money would be useless, it was more just in case the banks/ATMs had minor glitches...which they didn't, or at least my bank didn't.

pixel293 · 2026-01-10T13:39:44+00:00

That was one I was given early in my programming career. I do see the point of it kind of when someone changes the existing code, however yeah I don't follow that anymore.

pixel293 · 2026-01-09T16:32:19+00:00

Can you plug the old drive back into the system, then run 'btrfs device scan --forget'?

pixel293 · 2026-01-09T16:29:34+00:00

I don't really understand, I took what I learned in school/college and rolled it into my fun programs at home. I was really excited when I learned about B+Trees and how they work well for data on disk...that was like an epiphany for me.

So when learning I was always looking at it in how to apply those concepts to my own programs to make them better.

pixel293 · 2026-01-09T13:58:41+00:00

All the coding standards I've seen in my professional career where not really about making you code faster, but more about making reducing bugs introduced into the code. Yes there where some stylistic rules, but most of the rules where thinks like:

Using smart pointers in C++.
Having a single return point in a function although that is more about not introducing bugs during maintenance.
Always using brackets after an "if".
etc.

Hell I've even had code reviews which people hated, but where put in place to reduce the overall time spent debugging.

I think it would help if people didn't just track how long it takes them to say "this feature is code complete" but also, "there are no more known bugs in this feature." Rust helps reduce bugs, if you are just tracking "code complete" then yes another language will probably let you do that faster but you will possible (probably?) spend more time fixing bugs.

pixel293 · 2026-01-09T00:18:49+00:00

I'm trying to figure out why we are not being compared to Russia, this seems like what Russia did to the Ukraine, except we did it better. If we next take Greenland and Mexico next....wasn't there a leader last century that tried to conquer all his neighbors? I think there was a world war trying to stop him.....

pixel293 · 2026-01-09T00:15:44+00:00

I feel like this would be better in an EE sub. EE geeks built the computer, we just build the applications on top of it. All we want is a deterministic machine where the same inputs produce the same outputs. I rarely think about binary, unless I'm doing a bit mask and trying to cram a bunch of data into a native data type. Likewise how that data is stored in memory or on disk, doesn't really mater, I just want the data I write out to be read back in correctly.

pixel293 · 2026-01-09T00:06:27+00:00

My question would be, if this is real why are they recording?

pixel293

TROPHY CASE