Join devRant
Do all the things like
++ or -- rants, post your own rants, comment on others' rants and build your customized dev avatar
Sign Up
Pipeless API
From the creators of devRant, Pipeless lets you power real-time personalized recommendations and activity feeds using a simple API
Learn More
-
The amount of people who don't know the difference between kilobyte and kibibyte is too damn high. So much confusion.
TL;DR : Most people use Kilobyte ( KB ) and Kibibyte ( KiB ) wrong and i am angry about it.
When i first got involved with software as a teenager, i always wondered why we convert kilo to mega with multiplying by 1024, when we do it with multiplying by 1000 basically everywhere else. Our physics teacher called this SI unit system and told us that this is an internationally accepted statement. So why is there a different rule ? Did i miss out something ? Regrettably I didn't ask her about this.
I just didn't get fully as a teenager. Now, as I am a developer now, i understand that dealing with power or ten is troublesome. Due to ease of work, we lazily mess with SI system and use it wrongly. Isn't it the time we end this abomination ?
2 years ago i talked to a friend about this, he said that i shouldn't bother.
I talked to a teacher, he said "you are right but using different brand of unit system can be overkill, since there is not much difference anyways." I said okay and left.
1 mega = 1000 kilo
1 giga = 1000 mega etc
also,
MB = Megabyte ( 1000 Kilobyte )
KB = Kilobyte ( 1000 Byte )
MiB = Mebibyte ( 1024 Kibibyte )
KiB = Kibibyte ( 1024 Byte )
I am writing this because today i saw someone do it wrong on the internet, all of these came into mind. I wonder your approach about this, for research purposes.
Call me dick all you want, but i am the guy who always corrects uncertainty, no matter what. Things should be in place, correctly. No i don't have OCD. If you say something like "I have 1 MB of executable file, which means i have 1024 KB of it", i will find you, and i will correct you.37 -
People, please understand
1GB != 1024MB
1GB == 1000MB
1GiB != 1024MB
1GiB == 1024MiB
The MebiByte, GibiByte, KibiByte and others "biByte"s were defined at the end of XX century. How can be possible that people (I mean people which study/teach informatics, electronics or something similar) still don't know what is it?16 -
My friend brought me a simple python problem. He expected the output to be 2,2,3... instead of 2,3... I didn't know python, but with a quick tweak to differentiate the two prints, I understood that the range() function is exclusive.
Before coming to me, he asked his senior dev & that guy just said - "Oh, your editor has a problem". 😐
5 -
"First remove the break points, and then commit the code".
He described it as if the breakpoints could stop time!! 😂5 -
After seeing @Gregozor2121 share, I searched around in my bookmarks for similar stuff. Here are a couple of links that I feel is useful for everyone:
A massive list of Free programming books.
https://ebookfoundation.github.io/f...
(Also do explore anything marked as "awesome", cause it literally is awesome!! They have got tons of lists of resources for most programming languages, free software lists, famous stackoverflow answers, quotes & even Pokemon!!)
I also had this bookmarked:
https://github.com/chubin/cheat.sh
Basically cheat sheets at your command line. Pretty neat utility.8 -
From 'Javascript' then 'jquery' 😬 then 'angular 1' 😐..wait their is 'angular 2' damn this just a new framework compared to angular 1.(back-end) 'Nodejs' 😩, wait! you have to learn 'Express' after sometime upgrade to 'Hapi' wait now am on 'loopback' can't we just have one standard framework 😣😣😣
12 -
OCR (The exam board for my course) are fucking thick in the head when it comes to anything computing.
- I get a mark or two for saying open source software is worse than thier propritary counterparts
- ALL open source software forks must also be make open source. They spend so much time going over the legal stuff BUT HAVE NEVER HEARD OF OPEN SOURCE LICENCING!
- One exam paper had a not gate picture with 2 inputs...
- I have to differentiate between portable and handheld! YOU MEAN HANDHELD DEVICES ARE NOT PORTABLE!?!!?!?
- In level 2 education, OCR say 1 MB = 1024 KB - In level 3, they say 1 MB = 1000 KB, and 1 MiB = 1024 KiB, and expect you to differentiate. Why do you expect the wrong answer in level 2!?
- INFORMATION FORMATS AND STYLES ARE COMPLETELY DIFFERENT THINGS! If you look up synonyms for "style", "form" is there, and if you look up synonyms for "format", "style" is there.
- When asked for storage devices, I have to say "smartphone", "tablet", "desktop PC" - I mean yeah they store data but when you ask me for storage devices I will say "hard disk drive", "solid state drive", "SD card", etc. >.>
I could probably go on an on about this...
I sure do love being asked to copy-paste existing HTML/JS/CSS and being asked to just tweak it here and there, and then wait for other people's incompetence in copy-pasting... I sure do love being stuck with this sort of "education" ._.4 -
Today is going to be a long ass day :(
best way to start a saturday..
Receiving objects: 13% (866/6600), 740.01 KiB | 5.00 KiB/s
sometimes i think writing something new would be quicker then downloading it.2 -
I'm fixing a bug. In a car. In the middle of the fucking forest. My download speed is 13 KiB/s, roughly 75120 times slower than at the office. Fucking hell.
8 -
So recently I had an argument with gamers on memory required in a graphics card. The guy suggested 8GB model of.. idk I forgot the model of GPU already, some Nvidia crap.
I argued on that, well why does memory size matter so much? I know that it takes bandwidth to generate and store a frame, and I know how much size and bandwidth that is. It's a fairly simple calculation - you take your horizontal and vertical resolution (e.g. 2560x1080 which I'll go with for the rest of the rant) times the amount of subpixels (so red, green and blue) times the amount of bit depth (i.e. the amount of values you can set the subpixel/color brightness to, usually 8 bits i.e. 0-255).
The calculation would thus look like this.
2560*1080*3*8 = the resulting size in bits. You can omit the last 8 to get the size in bytes, but only for an 8-bit display.
The resulting number you get is exactly 8100 KiB or roughly 8MB to store a frame. There is no more to storing a frame than that. Your GPU renders the frame (might need some memory for that but not 1000x the amount of the frame itself, that's ridiculous), stores it into a memory area known as a framebuffer, for the display to eventually actually take it to put it on the screen.
Assuming that the refresh rate for the display is 60Hz, and that you didn't overbuild your graphics card to display a bazillion lost frames for that, you need to display 60 frames a second at 8MB each. Now that is significant. You need 8x60MB/s for that, which is 480MB/s. For higher framerate (that's hopefully coupled with a display capable of driving that) you need higher bandwidth, and for higher resolution and/or higher bit depth, you'd need more memory to fit your frame. But it's not a lot, certainly not 8GB of video memory.
Question time for gamers: suppose you run your fancy game from an iGPU in a laptop or whatever, with 8GB of memory in that system you're resorting to running off the filthy iGPU from. Are you actually using all that shared general-purpose RAM for frames and "there's more to it" juicy game data? Where does the rest of the operating system's memory fit in such a case? Ahhh.. yeah it doesn't. The iGPU magically doesn't use all that 8GB memory you've just told me that the dGPU totally needs.
I compared it to displaying regular frames, yes. After all that's what a game mostly is, a lot of potentially rapidly changing frames. I took the entire bandwidth and size of any unique frame into account, whereas the display of regular system tasks *could* potentially get away with less, since most of the frame is unchanging most of the time. I did not make that assumption. And rapidly changing frames is also why the bitrate on e.g. screen recordings matters so much. Lower bitrate means that you will be compromising quality in rapidly changing scenes. I've been bit by that before. For those cases it's better to have a huge source file recorded at a bitrate that allows for all these rapidly changing frames, then reduce the final size in post-processing.
I've even proven that driving a 2560x1080 display doesn't take oodles of memory because I actually set the timings for such a display in order for a Raspberry Pi to be able to drive it at that resolution. Conveniently the memory split for the overall system and the GPU respectively is also tunable, and the total shared memory is a relatively meager 1GB. I used to set it at 256MB because just like the aforementioned gamers, I thought that a display would require that much memory. After running into issues that were driver-related (seems like the VideoCore driver in Raspbian buster is kinda fuckulated atm, while it works fine in stretch) I ended up tweaking that a bit, to see what ended up working. 64MB memory to drive a 2560x1080 display? You got it! Because a single frame is only 8MB in size, and 64MB of video memory can easily fit that and a few spares just in case.
I must've sucked all that data out of my ass though, I've only seen people build GPU's out of discrete components and went down to the realms of manually setting display timings.
Interesting build log / documentary style video on building a GPU on your own: https://youtube.com/watch/...
Have fun!20 -
I tried to solved a problem for two day. And I was about to give up. I went and watched a movie with all my frustration. As I was checking on devRant while watching . I decided to google again using my phone this time. Immediately I got an idea and back to my computer. Three minutes and I was done with a problem that took me 2day's. All was because I was using RC5 in angular 2 and the module I was using is RC1 angular 2 and they had not indicated the change in the documention 😢😢😢
-
Why do developer never accept we need a rest to be able to debug sometimes. We waste 2hrs on the screen before realizing we are just staring on our computer
-
I actually found a real website using a Spinner UI element for inputting phone numbers!
It accepts typing the number too, though. So not completely bad. Also it only appears in the desktop version.
I guess this was just some short cut to force numerical input. Still was pretty shocked. I've only seen them in jokes/memes.
site: http://www.sparrowinn.in/
1 -
How many people do unit testing?. Am always caught my deadline. I just fix errors in production. The client timeline are not feasible2
-
My Data Communication & Computer Networks (DCCN) teacher was the best teacher I've seen.
Teaching can be super hard. You're one against like sixty others who aren't interested in being there. To make that good learning environment, making the subject interesting etc, it not easy. Some justify that, "I can only bring the horse to the water" & proceed to just regurgitate whatever is on the book. Others cross question you & impose punishments - try to make you learn by fear.
But my DCCN teacher - she had the right balance between strictness & humour. So kids took her seriously (did homework, weren't late), yet never feared her - we felt comfortable asking doubts/questions.
She had some good tactics, like asking us to teach certian chapters - that made us learn better. She would revise them in the end also, incase we missed anything.
My best moment with her was when I scored the highest in my internals. She picked up my paper & showed the class - "see? Just two pages & he scored so much". There's was always those students who pump out a lot of stories/essays or whatever that comes to their mind about the topic in question. Lots of teachers just blindly give marks - "oh, s/he wrote this much, so it must be right".
But my DCCN teacher had zero tolerance for garbage. If you're wrong, you're wrong. Some even believe that the number of marks = number of lines you have to write!! Doesn't matter what you write. So, I was super glad when this teacher upped the standards. -
That one mistake you make in the initial stage and you have to live with it. build your code base around it. Since it will be too expensive to remove it. 😕😕😕😕😬😬😬3
-
We're finishing some projects for uni. I've done mine, and am just helping out with others.
There was a friend who is doing her write-up. My other buddy was just just troubling her for fun. He threatened to press the power button on the laptop, thus sending it to hibernate. Minor nuisance; she just need to turn it back on after all.
She pleaded to leave her & let her complete the write-up. So I asked her if I could quickly re-configure the power button. You know, go to the windows power settings, and tell it to do nothing upon pressing the button.
She said no. But the way she said it struck me odd. As in "No, why would anyone do that!?". Debatable. Just to make sure, I asked whether she understood what I requested. She made a quick hand gesture of plucking the power button off!! 😐
Me & my buddy just stare at each other. "Yeah you're right, you're right, what a stupid idea...". We just slowly scoot from there. 🏃
No idea how she reached this far...1 -
Stupid timeline, there is this company I was working for. It was sub-contracted by another company to do a government project. Government only pays after you deliver in my country. It was a complex system I must say. We were to work with my buddy on this project...now the timeline we were given were not feasible since another company had been given the same project and were not able to deliver. We had a meeting and discussed with our CEO about the project timelines. From the workload the feasible timelines were around 8months if we were to work as two devs. My CEO said that was not going to happen.. The only timelines that was allowed was not more than 3 months. So we suggest use an existing system to customize. .The meetings with the clients were to be weekly demos. So we choose to go with google docs api for the document management part. We were working around 20hrs a day to be able to achieve the target deadline..we management to complete the project within the given timeline..on the commissioning date of the project we faced a government panel and this was my worst disappointment. At the point of login we had to use Google email for business to obtain the API. Just as I was logging in the guy noticed and yelled. "Is that google account ?" and I replied yes..and he said "no need of proceeding since it will be of no use and they won't approve the system". That was my lowest moment in programming. I thought I had done the best project in my life as a programmer only for stupid man to declare my project as null. I felt like calling him son of a bitch but I knew that would have made me more angry...i just walked out. I went to the toilet and all I did was cry for the first time as I can recall.. My question was I was doing weekly demos. Why didn't they raise any questions by then so as to change the entire system??? Later after that demo we went and discussed about the issue and there was time extension. I redid the project using 'open office' but just before deploying the system I got a better job. I wasn't feeling like working on that project anymore. I want to release that project as open source. Recently after one year they haven't yet deployed the system. They are calling for my help. And I don't feel like helping after the humiliation...
-
I often read CSS and HTML are turing complete, but I can‘t figure out why. How can you loop with them?4
-
How do explain to a student taking computer science in their second year what programming is. She wants to do what I do.. But she doesn't know what a variable is practically. She doesn't know what program entry is... 😡😡😕😕. They expected to be taught all this is class2
-
So I am looking at top on our embedded system. I notice the memory amounts are in KiB. Then I thought to myself: "We are not far from this being in MiB units."
I am excited for Terahertz optical cpus and Petabyte storage drives.5 -
I love this Pm who saw the way I was stressed up due to deadline. He told me don't worry nobody is going to die
-
That moment a user inspects element and see the html code and calls you that there are Errors on the app. Fuck fuck
Top Tags
Weekly Rant
View