Sooo, in my 5 years of high school, I had 5 different IT teachers...
Now, in Italy Highschool goes from 14 to 19 years old, I started programming some days after becoming 13, and "programming" classes begin on the third year, so I had quite a headstart on my classmates...

Now, for the third year, I had an awesome teacher, he noticed I was ahead and... Bored, so he gave me some extra stuff to study, he's the only teacher I've learnt anything from, it was awesome, very stingy with grades, but getting a perfect score with him was so satisfying.

Fourth year, the new guy was old, very old, at least 70, his lessons were just him talking about how programming was when he was young.

But then... During the second half of the fourth year I changed class due to bullying under a teacher's advice, and HE happened...

My new IT teacher, one of the most ignorant, awful people I ever met...
He's literally the reason I only went back to that school once, because another teacher needed help with a course...
One day I made the HUGE mistake to say that his "while(i <10000000000000);" wasn't very efficient for making a delay, because it didn't free the CPU, and since then:
- I never got more than 7 out of 10 at his tests
- He insulted me in front of the whole class
- He sabotaged the oral part of my final exam, shouting that he hated D'Annunzio when he saw he was in the literature part of my thesis (needed him to connect to WW2, and the Memex, that then allowed me to start talking about PCs and programming, my thesis was about the influence of lisp on modern programming languages), loudly chatting with other teachers when I was trying to keep calm (a teacher who knows me quite well, and was there to see my "performance" thought I was going to snap at some point), distracting the english teacher when I was exposing the english part of my thesis and pressuring the commission to give me 99 instead of 100 out of 100

So yeah, he almost made me hate the only thing I'm good at, undervaluing my work and my skills, undervaluing and humiliating me as a person, and I think that if I meet him again I might spit on his face...

So yeah, my biggest "programmer enemy" was a person that then did everything in his power to make my last year and a half of highschool hell

Now I can gladly say that with the help of my tutoring, some of my university colleagues are starting to appreciate programming, and my engineer friends ask for my help when they need advices about their code, and it's giving me motivation to keep doing it and becoming a better programmer to keep up with their expectations

The company i work for has a jenkins server (for people that don't know jenkins, it's an automated build service that gets the latest git updates, pulls them and then builds, tests and deploys it)

Because it builds the software, people were scared to update it so we were running version 1.x for a long time, even when an exploit was found... Ooh boy did they learn from that...

The jenkins server had a hidden crypto miner running for about 5 days...

I don't know why we don't have detectors for that stuff... (like cpu load being high for 15 minutes)

I even tried to strengthen our security... You know basic stuff LIKE NOT SAVING PASSWORDS TO A GOOGLE SPREADSHEET! 😠

But they shoved it asside because they didn't have time... I tried multiple times but in the end i just gave up...

Most satisfying bug I've fixed?

Fixed a n+1 issue with a web service retrieving price information. I initially wrote the service, but it was taken over by a couple of 'world class' monday-morning-quarterbacks.
The "Worst code I've ever seen" ... "I can't believe this crap compiles" types that never met anyone else's code that was any good.

After a few months (yes months) and heavy refactoring, the service still returned price information for a product. Pass the service a list of product numbers, service returns the price, availability, etc, that was it.

After a very proud and boisterous deployment, over the next couple of days the service seemed to get slower and slower. DBAs started to complain that the service was causing unusually high wait times, locks, and CPU spikes causing problems for other applications. The usual finger pointing began which ended up with "If PaperTrail had written the service 'correctly' the first time, we wouldn't be in this mess."

Only mattered that I initially wrote the service and no one seemed to care about the two geniuses that took months changing the code.

The dev manager was able to justify a complete re-write of the service using 'proper development methodologies' including budgeting devs, DBAs, server resources, etc..etc. with a projected year+ completion date.

My 'BS Meter' goes off, so I open up the code, maybe 5 minutes...tada...found it. The corresponding stored procedure accepts a list of product numbers and a price type (1=Retail, 2=Dealer, and so on). If you pass 0, the stored procedure returns all the prices.
Code basically looked like this..

public List<Prices> GetPrices(List<Product> products, int priceTypeId)
{
foreach (var item in products)
{
List<int> productIdsParameter = new List<int>();
productIdsParameter.Add(item.ProductID);
List<Price> prices = dataProvider.GetPrices(productIdsParameter, 0);
foreach (var price in prices)
{
if (price.PriceTypeID == priceTypeId)
{
prices = dataProvider.GetPrices(productIdsParameter, price.PriceTypeID);
return prices;
}
* Omitting the other 'WTF?' code to handle the zero price type
}
}
}

I removed the double stored procedure call, updated the method signature to only accept the list of product numbers (which it was before the 'major refactor'), deployed the service to dev (the issue was reproducible in our dev environment) and had the DBA monitor.

The two devs and the manager are grumbling and mocking the changes (they never looked, they assumed I wrote some threading monstrosity) then the DBA walks up..

DBA: "We're good. You hit the database pretty hard and the CPU never moved. Execution plans, locks, all good to go."
<dba starts to walk away>
DevMgr: "No fucking way! Putting that code in a thread wouldn't have fix it"
Me: "Um, I didn't use threads"
Dev1: "You had to. There was no way you made that code run faster without threads"
Dev2: "It runs fine in dev, but there is no way that level of threading will work in production with thousands of requests. I've got unit tests that prove our design is perfect."
Me: "I looked at what the code was doing and removed what it shouldn't be doing. That's it."
DBA: "If the database is happy with the changes, I'm happy. Good job. Get that service deployed tomorrow and lets move on"
Me: "You'll remove the recommendation for a complete re-write of the service?"
DevMgr: "Hell no! The re-write moves forward. This, whatever you did, changes nothing."
DBA: "Hell yes it does!! I've got too much on my plate already to play babysitter with you assholes. I'm done and no one on my team will waste any more time on this. Am I clear?"

Seeing the dev manager face turn red and the other two devs look completely dumbfounded was the most satisfying bug I've fixed.

**A thief never says that he has stealed**
~You can relate norton AV's warning and this~

Have been trying to setup Netdata as a monitoring system for a while now and finally got it working!

Instead of the built-in webhooks I just did a curl to a url containing a php page/file which error logs the status and description (just for testing).

It took me way too long to get it to work but BAM.
Immediately made a new cpu load rule (one minute high load):
The satisfaction of getting an error message in the php logs containing my custom rule as warning and a minute later as critical 😍

Netdata ❤

I'm 4 days into my new job, and so far I am absolutely loving it. Here's my setup. Yes, they gave me 3 monitors plus a laptop, so my setup has 5 screens! Now I can die happy :D

Definitely worth noting as well, since it caught me by surprise - the company-supplied laptop is a powerhouse. High-end i7 CPU, mid-to-high-end NVIDIA GPU, tons of ports, 1TB HD, 4K display, and 48 GB RAM. Yes, 48 GB. I am truly blessed, starting off my career with this. ^_^

Oh dear, a scaling problem I solved was replacing some Regex matching with simpler string functions. While I'm a huge fan of Regex, it's unreal how much performance they can suck out of some high-n loops...
I got about 120x out of some critical code thus making a CPU upgrade unnecessary.

Forgot to post a book yesterday, so maybe I’ll post two books today...

Anyway, this book, I found it recently never seen it before. But boy is it great.

It’s similar to the programming pearls book as far as what it’s about. Think of the refactoring book, clean code, programming pearls, and the mythical man month books, thrown in a blender, added some new spice and some new things, and filtered down into 100 or so page book, simple quick and enjoyable actually.

This book the references staple books by Sedgwick, knuth, Brooks, Myers, and so many others. It’s funny how things come full circle.

My favorite quote from the book. I’ve been essentially saying this for years, but to see it on a book, it’s lovely... more people need to realize it too.

“Understanding how things work at a low level becomes a base for making good decisions at the high level”

Followed up with if you’ve never built a computer from scratch your missing out... get yourself a breadboard and some TTL logic.. and build a 4 bit CPU, once you know how to program in assembly the next step is building your own computer ... if your university didn’t teach a class that did this they ripped you off....

Don’t bitch at me.. the book said that.. and I agree! 100% because it’s true, you can’t debate that.

Oh and btw this is another book written by a female developer.. kudos to her for nailing so many topics in such a short book!

This isn't as much of a rant as the story of my worst abuse of computer knowledge.

This happened a couple years ago. When I was in high school, I had this friend/enemy relationship with this guy, lets call him Thomas. He loved to pull pranks on people. He had a similar firend/enemy relationship with my brother, and after one prank, my brother decided to get revenge. And by revenge, he meant asking me to make a virus.

I knew the guy, and I agreed. We thought about what type of virus we could make that would be funny, and not too damaging. We decided on a program that would play annoying sound effects every few minutes. Short enough to be noticable, long enough that Thomas would give up and not try to investigate.

I won't bore you with the details of the program. It was a very simple C app, very small, named "Counter-Strike-Global-Offence-Free-Download-Totally-Legit.exe". It was clearly visible in task manager, but since it was so small and barely used CPU or RAM it would stay near the bottom. I tried loading a custom sound effect, but it turned out the windows default "invalid sound effect" was much more annoying than any custom sound I could find.

The "Infecting" portion consisted of moving the .exe to the start menu startup folder while Thomas left his laptop unattended. My brother handled this part.

I unfortunaly left the country soon after and never actually saw the effect the program had on Thomas. I assumed my brothers laughing would give it away rather fast and he could simply remove it from his startup folder. However, my brother told me he still complained about it for months, before finally bringing the laptop to a repair center that found the totally legit CS:GO exe. My brother ended up telling him soon after, but this was still the best prank I ever pulled.

Why am I such an average ?

It's just a sad realisation. Nobody cares but I wanna send this out there, just to write thoughts.. I am 18 in 3rd year of high school (grammar school so nothing IT related, basically waste of time) and in IT I'm all self taught but I feel like I could be better if I just didn't [something]..

I feel like I wanna learn so many things but when I look at you, it seems like a common problem in the IT sphere so hey, average guy joining the club.

I also feel dumb when programming. I didn't manage to learn C++ in it's entirety because to really accomplish something, you've got so many ways to do it and finding the best one requires deep understanding of the tools you've got at your disposal with the language and I feel like I'm not capable of this(self learn, in school/Uni that's different story).. But many (most) of you are. I've tried many coding challenges and when I got it working, I just saw how someone did it in one line just by layering functions that I've never heard of..

Also, we've got kinda specific national competition here in many fields including IT for high schools.. And the winners always do sometimes like "AI driven Life simulation" or "Self flying drone made from ATMega from scratch with 3D simulation in C# to it" or "Game engine" or whatever shit and it's always from grammar schools and never IT related schools.. They are like me. Maybe someone helped them, I don't know, but they are just so far away from me while I'm here struggling to get the basic level of math for any kind of machine learning..

Yeah I've written Neural Network from scratch in C but meh, honestly it's pretty basic stuff .. I'd rather understand derivatives which we're going to learn next year and I'm too lazy to learn it from khan academy because I always learn something else.. Like processing (actually codetrain started teaching tensorflow so that might be the light for me...) Or VHDL (guys you can create your own chip / CPU from scratch and it's not even hard and OMFG it's so fucking cool , full adder done yay) or RPi or commodore 64 assembly or game development with Godot and just meh..

I mean, this sounds exactly like not knowing what to do and doing nothing in the end. That was me like 6-12 months ago. Now I'm managing to pick 2-3 things and focus them and actually feel the progress.

But I lost track of the original point.. I didn't do anything special, every time I'm programming something, everyone does it better and I feel dumb. I will probably never do anything special, everyone around says "He's still learning he's genius" but they have no idea.

I mean, have you seen one of the newest videos on Google's YouTube channel (I openly hate them, but I will keep that away for now), something like "Sarah story" ? It's about girl that apparently didn't care about IT but self learned tensorflow on high school. I think it may be bullshit (like ALL of their videos ) but it's probably just fancied, not complete lie.

And again, here I am. I now C but I'm incapable of learning to program good which most of you did and are now doing for living. I'm incapable to do anything cool, just understanding what everybody else did and replicating it. I'm incapable of being clever.

Sorry, just misusing devrant to vent a bit

"Some settings are managed by your organisation"

I understand the necessity for companies to be able to remotely manage their devices, but my god, I hate working on company laptops sooo much!!

Fun fact, even Chrome can be managed! The can manage everyting. It's called Microsoft Intune. It sucks!! And fucking 45 day PW change policy! And fuck you, Windows Defender Real-time protection which I can't turn off and It's high CPU consumption. Also fuck you Microsoft Teams for scanning. Every. Single. Link. I. Click. On. From. A. Chat. Before. Redirecting. Me. To. The. Actual. Website. Always takes a couple of seconds. Waste of time. Those accumulate over time you know! AND to Windows Update! You already know what is coming next: stop force-updating while I'm in the middle of fucking meeting! I have shit to do! Another fun fact: you can postpone Windows Update by turning the clock back. LIKE PLAYING AN OLD TIME-BASED STRATEGY GAME ON PC IN 1999. (12h work best.) And this fucking weak ass VPN. WHY I PAY FOR 1Gbps WHEN COMPANY VPN ONLY 10Mbps?!! What Am I? A fucking snail! Go faster!! pls!

But, thank god, we can email shit and open attachments in Outlook.

Worst hypothetical Dev job... hmm 🤔 well I think I have the right scenario for you. A medical company stores patient charts and critical life saving information in a database. This database makes medical decisions for lifesaving incubators and if there’s a bug it means 10,000 newborn sick babies will die because of your fuck up (oh and you’re criminally liable too so good luck!). But beyond the high pressure job that sounds at least somewhat normal, the database is written in a special form of assembly for a custom undocumented CPU where only one copy in the world exists so all tests and development are on production. Google and StackOverflow is banned so your only resource is your brain. Good luck🍀

I had spent the last year working on a online store power by woocommerce with over 100k products from various suppliers. This online store utilized a custom API that would take the various formats that suppliers offer their inventory in and made them consistent. Now everything was going swimmingly initially, but then I began adding more and more products using a plug-in called WP all import. I reached around 100k products and the site would take up to an entire minute to load sometimes timing out. I got desperate so I installed several caching plugins, but to no avail this did not help me. The site was originally only supposed to take three to four months but ended up taking an entire year. Then, just yesterday I found out what went wrong and why this woocommerce website with all of these optimizations was still taking anywhere from 60 to 90 seconds to load, or just timing out entirely. I had initially thought that I needed a beefier server so I moved it to a high CPU digitalocean VM. While this did help a little bit, the site was still very slow and now I had very high CPU usage RAM usage and high disk IO. I was seriously stumped the Apache process was using a high amount of CPU and IO along with MYSQL as well. It wasn't until I started digging deeper into the database that I actually found out what the issue was. As I was loading the site I would run 'show process list' in the SQL terminal, I began to notice a very significant load time for one of the tables, so I went to go and check it out. What I did was I ran a select all query on that particular table just to see how full it was and SQL returned a error saying that I had exceeded the maximum packet size. So I was like okay what the fuck...
So I exited my SQL and re-entered it this time with a higher packet size. I ran a query that would count how many rows were in this particular table and the number came out to being in the millions. I was surprised, and what's worse is that this table belong to a plugin that I had attempted to use early in the development process to cache the site. The plugin was deactivated but apparently it had left PHP files within the wp content directory outside of the actual plugin directory, so it's still executing scripts even though the plugin itself was disabled. Basically every time I would change anything on the site, it would recache the whole thing, and it didn't delete any old records. So 100k+ products caching on saves with no garbage collection... You do the math, it's gonna be a heavy ass database. Not only that but it was serialized data, so when it did pull this metric shit ton of spaghetti from the database, PHP then had to deserialize it. Hence the high ass CPU load. I had caching enabled on the MySQL end of things so that ate the ram. I was really desperate to get this thing running.
Honest to God the main reason why this website took so long was because the load times made it miserable to work on. I just thought that the hardware that I had the site on was inadequate. I had initially started the development on a small Linux VM which apparently wasn't enough, which is why I moved it to digitalocean which also seemed to not be enough, so from there I moved to a dedicated server which still didn't seem to be enough. I was probably a few more 60-second wait times or timeouts from recommending a server cluster to my client who I know would not be willing to purchase it. The client who I promised this site to have completed in 3 months and has waited a year. Seriously, I would tell people the struggles that I would go through with this particular site and they would just tell me to just drop the site; just take the money, just take the loss. I refused to, this was really the only thing that was kicking my ass. I present myself as this high-and-mighty developer like I'm just really good at what I do but then I have this WordPress site that's just beating the shit out of me for a year. It was a very big learning experience and it was also very humbling as well, it made me realize that I really don't know as much as I think I might. It was evidence that there is still so much more to learn out there, I did learn a lot from that experience especially about optimizing websites the different types of methods to do that particular lonely on the server side and I'll be able to utilize this knowledge in the future.
I guess the moral of the story is, never really give up. Ultimately things might get so bad that you're running on hopes and dreams. Those experiences are generally the most humbling. Now I can finally present the site that I am basically a year late on to the client who will be so happy that I did not give up on the project entirely. I'll have experienced this feeling of pure euphoria, and help the small business significantly grow their revenue. Helping others is very fulfilling for me, even at my own expense.

Anyways, gonna stop ranting. Running out of characters. If you're still here... Ty for reading :')

Me working in High Performance Computing :
CPU/GPU in full throttle ... go brrrr...

Me working on an app:
Should put sleep() in the while loop so as not to overwork the CPU

😑😑

Ok seriously is Microsoft mining Bitcoin on my computer? If I leave it idle for >5 minutes it starts using intense amounts of CPU and I have no clue why (doesn't show up in task manager, all the processes added up in taskmgr are like 15% max). It's super annoying since I have a razer and high cpu turns on BOTH VERY LOUD FANS.

I checked for malware and stopped any update or useless background tasks (cortana, indexing, etc) and it has not helped one bit. If I click the screen or move the mouse it subsides immediately.

(No, I won't get a mac--I have two and they lacks compatibility with the software I need as well as the specs for what I usually work with)

Can someone help me understand?

I subscribed to a nifty IT-releated magazine, and on its back, there's an ad for "Dedicated root server hosting", nothing unusual at a first glance, but after I read the issue, I decided to humor them and see what it is that they offered, and... It just... Doesn't make sense to me!

An ad for "Dedicated Root Server" - What is a dedicated root server first of all? Root servers of any infrastructure sound pretty important.

But, the ad also boasts "High speed performance with the new Intel Core i9-9900K octa-core processor", that's the first weird thing.

Why would anyone responsible enough want to put an i9 into a highly-reliable root server, when the thing doesn't even support ECC? Also, come on, octa-core isn't much, I deal with servers that have anywhere between 2 and 24 cores. 8 isn't exactly a win, even if it has a higher per-core clock.

Oh, also, further down the ad has a list of, seeming, advantages/specs of the servers, they proclaim that the CPU "incl. Hyper-Threading-Technology"... Isn't that... Standard when it comes to servers? I have never seen a server without hyperthreading so far at my job.

"64 GBs of DDR4 RAM" - Fair enough, 64 gigs is a good amount, but... Again, its not ECC, something I would never put into a server.

"2 x 8 TB SATA Enterprise Hard Drive 7200 rpm" - Heh, "enterprise hard drive", another cheap marketing word, would impress me more if they mentioned an actual brand/model, but I'll bite, and say that at least the 7200 rpm is better than I expected.

"100 GBs of Backup Space" - That's... Really, really little. I've dealt with clients who's single database backup is larger than that. Especially with 2x8 TB HDD (Even accounting for software raids on top)

This one cracks me up - "Traffic unlimited"
Whaaaat?! You are not gonna give me a limit to the total transferred traffic to the internet for my server in your data center? Oh, how generous of you, only, the other case would make the server just an expensive paperweight! I thought this ad was for semi-professionals at least, so why mention traffic, and not bandwidth, the thing that matters much more when it comes to servers? How big of a bandwidth do I get? Don't tell me you use dialup for your "Dedicated Root Server"s!

"Location Germany or Finland" - Fair enough, geolocation can matter when it comes to latency.

"No minimum contract" - Oooh, how kiiiind of you, again, you are not gonna charge me extra for using the server only as long as I pay? How nice!

"Setup Fee £60" - I guess, fair enough, the server is not gonna set itself up, only...

The whole ad is for "monthly from £55.50", that's quite the large fee for setup.

Oh, and a cherry on top, the tiny print on the bottom mentions: "All prices exclude VAT and are a subject to..." blah blah blah.
Really? I thought that this sort of almost customer deceipt is present only in the common people's sphere!

I must say, there's being unimpressed, and then... There's this. Why, just... Why? Anyone understands this? Because I don't...

When fixing high CPU load and unresponsive servers is a simple restart. Ugh...

Is your code green?

I've been thinking a lot about this for the past year. There was recently an article on this on slashdot.

I like optimising things to a reasonable degree and avoid bloat. What are some signs of code that isn't green?

* Use of technology that says its fast without real expert review and measurement. Lots of tech out their claims to be fast but actually isn't or is doing so by saturation resources while being inefficient.
* It uses caching. Many might find that counter intuitive. In technology it is surprisingly common to see people scale or cache rather than directly fixing the thing that's watt expensive which is compounded when the cache has weak coverage.
* It uses scaling. Originally scaling was a last resort. The reason is simple, it introduces excessive complexity. Today it's common to see people scale things rather than make them efficient. You end up needing ten instances when a bit of skill could bring you down to one which could scale as well but likely wont need to.
* It uses a non-trivial framework. Frameworks are rarely fast. Most will fall in the range of ten to a thousand times slower in terms of CPU usage. Memory bloat may also force the need for more instances. Frameworks written on already slow high level languages may be especially bad.
* Lacks optimisations for obvious bottlenecks.
* It runs slowly.
* It lacks even basic resource usage measurement.

Unfortunately smells are not enough on their own but are a start. Real measurement and expert review is always the only way to get an idea of if your code is reasonably green.

I find it not uncommon to see things require tens to hundreds to thousands of resources than needed if not more.

In terms of cycles that can be the difference between needing a single core and a thousand cores.

This is common in the industry but it's not because people didn't write everything in assembly. It's usually leaning toward the extreme opposite.

Optimisations are often easy and don't require writing code in binary. In fact the resulting code is often simpler. Excess complexity and inefficient code tend to go hand in hand. Sometimes a code cleaning service is all you need to enhance your green.

I once rewrote a data parsing library that had to parse a hundred MB and was a performance hotspot into C from an interpreted language. I measured it and the results were good. It had been optimised as much as possible in the interpreted version but way still 50 times faster minimum in C.

I recently stumbled upon someone's attempt to do the same and I was able to optimise the interpreted version in five minutes to be twice as fast as the C++ version.

I see opportunity to optimise everywhere in software. A billion KG CO2 could be saved easy if a few green code shops popped up. It's also often a net win. Faster software, lower costs, lower management burden... I'm thinking of starting a consultancy.

The problem is after witnessing the likes of Greta Thunberg then if that's what the next generation has in store then as far as I'm concerned the world can fucking burn and her generation along with it.

I just realized one of today's emails is asking to review again that spaghetti program and this time figure out how to optimize performance because it is getting flagged for high cpu and database usage. A Niagra of If-statements and nobody-cares-for-comments-and-technical-documentation.

*bleep* *bleep* *bleep* previous programmer.

I'll deal with this torture on Monday.

FUUCCKKKK!! I need to hit smth. Or rant..

So that flaky ec2 issue.. These ec2s act as a shared environment for multiple apps. Our app is one of them. I have no access to those ec2s at all.

What I have access to is my app and some monitoring. Now the app randomly starts lagging while nearly idling. At the same random times monitoring stops completely and doesn't come back up. This happens to random app instances at random times.

Reached out to infra support, managed to get attention from the big boys [mgmt]. Today we got the fix deployed. I test it out -- problem persists.

I find this behaviour somewhat familiar. Managed to get some server stats from infra folks. Apparently cpu% is high as well as load avg [cpu queue]. Bingo! I know how to fix it!

So I write a long comment w/ all the commands and all the 'if that, do this'. Send it to one of the infra technitians

and I get a reply: 'we will apply cpu usage limitations to fix the issue'

wait... Cpu% limitations will do nothing but highlight the underlying problem...

'no, instances have high cpu utilisation which is causing those lags. We will limit cpu resources and it will be fixed'

oh ffs... Cpu utilization and cpu queue are VERY different things.. I tried explaining that to them like 7-9 times. And all I get is:

'yes, cpu utilization is the problem. We will limit it and solve the problem'

I would surely escalate all of this through higher channels if only I could get my hands on those ec2s and have a proof. But that is not happening and I'm forced to sit back and watch them break things even worse until they are out of options and mark my query as 'wont fix'....

Fuck that's frustrating....

*thinking to myself* so I've read about that new vulnerability 2 days ago that allows one to escape from docker container to the host... What if <...>

This is a guide for technology noobies who wants to buy a laptop but have no idea what the SPECS are meaning.

1. Brand
If you like Apple, and love their !sleek design, go to the nearest Apple store and tell them "I want to buy one. Recommendations?"
If you don't like Apple, well, buy anything that fits you. Read more below.

2. Size
There are 11~15 inches, weight is 850g ~ 2+kg. Very many options. Buy whatever you like.

//Fun part coming

3. CPU
This is the power of the brain.
For example,
Pentium is Elementary Schoolers
i3 is Middle Schoolers
i5 is High Schoolers
i7 is University People

Dual-core is 2 people
Quad-core is 4 people

Quiz! What is i5 Dual-core?
A) 2 High Schoolers.

Easy peasy, right?

Now if you have a smartphone and ONLY use Messaging, Phone, and Whatsapp (lol), you can buy Pentium laptops.
If not, I recommend at least i3

Also, there are numbers behind those CPU, like i3-6100
6 means 6th generaton.
If the numbers are bigger, it is the most recent generation.

Think of 6xxx as Stone age people
7xxx as Bronze age people
8xxx as Iron age people
and so one.

4. RAM
This is the size of the desk.
There are 4GB, 8GB, 16GB, 32GB, and so one.
Think of 4GB as small desk to only put one book on it.
8GB as a desk to put a laptop with a keyboard and a mouse.
16GB as a normal sized desk to put some books, laptop, and food.
32GB as a boss sized desk.
And so one.

When you do multitasking, and the desk is too small...
You don't feel comfortable right?
It is good when there are spacious space.
Same with RAM.

But when the desk becomes larger, it gets expensive, so buy the one with the affordable price.

If you watch some YouTube videos in Chrome and do some document words with Office, buy at least 8GB. 16GB is recommended.

5. HDD/SSD
You take out the stuffs such as books and laptop from the basket (HDD/SSD), and put in your desk (RAM).

There are two kinds of baskets.
The super big ones, but because it is so big, it is bulky and hard to get stuffs out of the basket. But it is cheap. (HDD)
There are a bit smaller ones but expensive compared to the HDD, it is called SSD. This basket is right next to you, and it is super easy to get stuffs out of this basket. The opening time is faster as well.

SSDs were expensive, but as times go, it gets bigger as well, and cheaper. So most laptops are SSD these days.
There are 128GB, 256GB, 512GB, and 1024GB(=1TB), and so one. You can buy what you want. Recommend 256GB for normal use.
Game guy? At least 512GB.

6. Graphics
It is the eyesight.
Most computers doesn't have dedicated graphics card, it comes with the CPU. Intel CPUs has CPU + graphics, but the graphics powered by Intel isn't that good.
But NVIDIA graphics cards are great. Recommended for gamers. But it is a bit more expensive.

So TL;DR

Buying a laptop is
- Pick the person and the person's clothes (brand and design)
- Pick the space for the person to stay (RAM, SSD/HDD)
- Pick how smart they are (CPU)
- Pick how many (Core)
- Pick the generation (6xxx, 7xxx ....)
- Pick their eyesight (graphics)

And that's pretty much it.
Super easy to buy a laptop right?

If you have suggestions or questions, make sure to leave a comment, upvote this rant, and share to your friends!

python machine learning tutorials:
- import preprocessed dataset in perfect format specially crafted to match the model instead of reading from file like an actual real life would work
- use images data for recurrent neural network and see no problem
- use Conv1D for 2d input data like images
- use two letter variable names that only tutorial creator knows what they mean.
- do 10 data transformation in 1 line with no explanation of what is going on
- just enter these magic words
- okey guys thanks for watching make sure to hit that subscribe button

ehh, the machine learning ecosystem is burning pile of shit let me give you some examples:

- thanks to years of object oriented programming research and most wonderful abstractions we have "loss.backward()" which have no apparent connection to model but it affects the model, good to know
- cannot install the python packages because python must be >= 3.9 and at the same time < 3.9
- runtime error with bullshit cryptic message
- python having no data types but pytorch forces you to specify float32
- lets throw away the module name of a function with these simple tricks:
"import torch.nn.functional as F"
"import torch_geometric.transforms as T"
- tensor.detach().cpu().numpy() ???
- class NeuralNetwork(torch.nn.Module):
def __init__(self):
super(NeuralNetwork, self).__init__() ????
- lets call a function that switches on the tracking of math operations on tensors "model.train()" instead of something more indicative of the function actual effect like "model.set_mode_to_train()"
- what the fuck is ".iloc" ?
- solving environment -/- brings back memories when you could make a breakfast while the computer was turning on
- hey lets choose the slowest, most sloppy and inconsistent language ever created for high performance computing task called "data sCieNcE". but.. but. you can use numpy! I DONT GIVE A SHIT about numpy why don't you motherfuckers create a language that is inherently performant instead of calling some convoluted c++ library that requires 10s of dependencies? Why don't you create a package management system that works without me having to try random bullshit for 3 hours???
- lets set as industry standard a jupyter notebook which is not git compatible and have either 2 second latency of tab completion, no tab completion, no documentation on hover or useless documentation on hover, no way to easily redo the changes, no autosave, no error highlighting and possibility to use variable defined in a cell below in the cell above it
- lets use inconsistent variable names like "read_csv" and "isfile"
- lets pass a boolean variable as a string "true"
- lets contribute to tech enabled authoritarianism and create a face recognition and object detection models that china uses to destroy uyghur minority
- lets create a license plate computer vision system that will help government surveillance everyone, guys what a great idea

I don't want to deal with this bullshit language, bullshit ecosystem and bullshit unethical tech anymore.

Somebody ranted about his teacher showing windows presentation and teaching nothing. I wanted to comment that post but i have enough material to make the whole rant out of it.

Well at least you have those presentations! In my school we have 2 IT classrooms one with win xp, 1ghz cpu, 0,5gb ram computers and one with win vista, 2 core 2ghz cpu and 2gb of ram PCs.

Guess what room our teacher is using... of course the worse one! The second one is fine, few years ago another theacher had been using it!

I tried to convince him to change rooms but he is coming up with silly exciuses! (like "server is not working here!", well i fixed it with my friend but why are you even talking about it when you are not using yours in old class!)

PS. That server is useless anyway, every pc is connected to router that is connected to internet so supervisor pc is not mandatory, only acces restriction is enforced by win accounts.

I heard from students from my class (that picked that optional IT course) (i'm in high school) that gimp is not working because pc's are so bad!
Sometimes even notepad frezzes.🤔

Not only class is shite but teacher clearly has no idea what is he doing. (in order to pass the final from IT you need to learn simple C++, up to simple foo objects) and of course he isn not even talking about that! On one lesson about sorting algorithms he gave everybody 10 small pieces of paper with numbers on them and told everybody to sort them manualy, because he didnt know how to do it himself! So there is no doubt they wont be able code it.

I need to mention that i volontered to "clean, fix" that classroom (in order to convince teacher to move). And in that class i saw programms written in c++ on every computer! That means somebody was teaching propely before! 😣

I feel sorry for those guys, they are just waisting time. I would fall for it as well but i decided i can learn coding in home ;).
Well, results are shocking, after 1 month of coding i learned C# and i can basicly make any algorithm i ever wish. I learned about computer operation so well that i can nearly teach computer science. (i helped my friend in usa that is a electronic student with that and i'm very proud of it 😁) and it class still can't even use all 3 loops correctly... 😥 Ok i must admit i have been coding for a looooong while so i had time to learn basic c,c++ and pc operations before, but point still stands.

Why the hell are you wasting life of those studends? Why are you giving them a choice to learn coding WHEN YOU CANT EVEN USE PC YOURSELF?! (that it course is optional so you can apply if you want so)

I dont regret not bothering about it.

So just sitting here watching my windows VM's cpu usage to monitor was seems to be causing some stuttering and then out of fucking nowhere the default photo's app pops and and claims 96% of the CPU...

I understand computers are weird but how the hell does an app randomly start and jump to such a high CPU usage?

It was the last year of high school.

We had to submit our final CS homework, so it gets reviewed by someone from the ministry of education and grade it. (think of it as GPA or whatever that is in your country).

Now being me, I really didn’t do much during the whole year, All I did was learning more about C#, more about SQL, and learn from the OGs like thenewboston, derek banas, and of course kudvenkat. (Plus more)

The homework was a C# webform website of whatever theme you like (mostly a web store) that uses MS Access as DB and a C# web service in SOAP. (Don’t ask.)

Part 1/2:

Months have passed, and only had 2 days left to deadline, with nothing on my hand but website sketches, sample projects for ideas, and table schematics.

I went ahead and started to work on it, for 48 hours STRAIGHT.

No breaks, barely ate, family visited and I barely noticed, I was just disconnected from reality.

48 hours passed and finished the project, I was quite satisfied with my it, I followed the right standards from encrypting passwords to verifying emails to implementing SQL queries without the risk of SQL injection, while everyone else followed foot as the teacher taught with plain text passwords and… do I need to continue? You know what I mean here.

Anyway, I went ahead and was like, Ok, lets do one last test run, And proceeded into deleting an Item from my webstore (it was something similar to shopify).

I refreshed. Nothing. Blank page. Just nothing. Nothing is working, at all.

Went ahead to debug almost everywhere, nothing, I’ve gone mad, like REALLY mad and almost lose it, then an hour later of failed debugging attempts I decided to rewrite the whole project from scratch from rebuilding the db, to rewriting the client/backend code and ui, and whatever works just go with it.

Then I noticed a loop block that was going infinite.

NEVER WAIT FOR A DATABASE TO HAVE MINIMUM NUMBER OF ROWS, ALWAYS ASSUME THAT IT HAS NO VALUES. (and if your CPU is 100%, its an infinite loop, a hard lesson learned)

The issue was that I requested 4 or more items from a table, and if it was less it would just loop.

So I went ahead, fixed that and went to sleep.

Part 2/2:

The day has come, the guy from the ministry came in and started reviewing each one of the students homeworks, and of course, some of the projects crashed last minute and straight up stopped working, it's like watching people burning alive.

My turn was up, he came and sat next to me and was like:

Him: Alright make me an account with an email of asd@123.com with a password 123456

Me: … that won't work, got a real email?

Him: What do you mean?

Me: I implemented an email verification system.

Him: … ok … just show me the website.

Me: Alright as you can see here first of all I used mailgun service on a .tk domain in order to send verification emails you know like every single website does, encrypted passwords etc… As you can see this website allows you to sign up as a customer or as a merc…

Him: Good job.

He stood up and moved on.

YOU MOTHERFUCKER.

I WENT THROUGH HELL IN THE PAST 48 HOURS.

AND YOU JUST SAT THERE FOR A MINUTE AND GAVE UP ON REVIEWING MY ENTIRE MASTERPIECE? GO SWIM IN A POOL FULL OF BURNING OIL YOU COUNTLESS PIECE OF SHIT

I got 100/100 in the end, and I kinda feel like shit for going thought all that trouble for just one minute of project review, but hey at least it helped me practice common standards.

Question / Suggestions.
CPU : AMD or Intel ?
GPU : AMD or Nvidia ?

I want to build a High-end PC (Desktop).

Hey fellow devRanters,

I'm sure some of you have read about the newest vulnerabilities in Intels Management Engine (ME). I feel like ME and similar "features" are unacceptable backdoors into our systems. Unfortunately Intel and AMD do not offer their customers the option to acquire CPUs that lack these backdoors and make disabling them rather impossible 😒

Thus my question: Do you guys know of any 64-bit "open-source" CPU on the market that is production-ready and suitable for high-traffic web applications? Please note that I don't consider FPGAs to be viable options, since I don't trust Xilinx and Altera either.

Fuck Antimalware Service Executable.
All my homies hate Antimalware Service Executable.

I hope I can hop into Linux before this happens to my personal computer.

Here is a weird fact I have been thinking about this evening:

Helio X20 was the only mainstream ARM processor that had 10 CPU cores. It was first introduced in 2015, however no more ARM processors with high core count were used since then..

Nowadays smartphone processors have `8` cores max 🤔🧐

I guess 8 cores the reasonable limit for smartphones. Must have something to do with cost-to-performance factor

I need a powerhouse laptop: top CPU, loads of RAM and a decent GPU to run games occasionally (doesn't have to be ultra high graphics). Any brand recommendations? I love building computers, but buying laptops is really overwhelming.

some call
- yo bro do you have some time ?
- quick cause I'm taking a dump
- I think I have been hacked, got black screen kernel panick, linux freeze seldomly I have to reboot, no internet connexion
- save your stuff and reinstall linux
- I don't have enough stockage to backup
- Then buy one and save, probably either OS is fcked up or you have some hdd problems

Time that it will take: ~30min to reinstall whole shit
Peace duration: ~2years

Later on the same day
aunt
- I can't log into windows
- Did you change the password ?
- Yes but it does not work anymore
* looking at shit
* logs successfully. Reason: interface changed after automatic update.
* wait.
* wait some more so fucking windows fucking starts
* Desktop is ugly as fck.
* Some stupid settings messed up (like high contrast set, black theme or so)

aunt (the same)
- I can't log into my (other) laptop either
* logs
* wait more more more

Guess what: automatic updaaaates. Freezes 100%cpu

* Being a very experienced user: wait before reboot because this suckass os will probably fail to boot otherwise
* Blackscreen with a percentage: Installing updates...
* reboots
* Blackscreen with a percentage: Installing updates continuing...
* finally boot (feels like a miracle windows succeeds lol)
* still slow
aunt now sleeps
* look at running process and install programs
* sees shits like camera recognition (vendor installed), candycrush
* occasionnaly get adds

time lost: 2h
peace duration: ~3month

FFS I am a dev, not a fucking trash lover
It is already pain to fix someone os, but windows is the cream of cream

It brings no ease of use for novice user
It is so insanely slow
It has stupid settings set up by default!!!!!!!! Who FFS wants candycrush and ads
The maj are so fcking hazardous. It is 2022 pretty much the same as 15y back then. Updates take fucking eternity. And needs reboot. and are not even finished!!!

I swear I am gonna stretch my ass and install linux and any fckin other toolsuite needed so they can use Micro$$ word, which is the only fucking usecase they need windows for in the first case anyway
I SO wish this OS would die

I mean, even more than safari

!rant/story:

Aaayoo issya boi the OG rapper straight outta Compton, wassup?!

Nah, for real, though.: How are y'all doing? It has been a long time. I hope y'all are having a great time (can sense some peoples' incoming negative comments due to corona).

I built my completely new first gaming rig like a few weeks ago after my school laptop stopped showing any signals.

The specifications are the following.:
- Mobo: MSI B450 TOMAHAWK MAX
- CPU: AMD Ryzen 5 3600 (no iGPU)
- dGPU: KFA2 RTX 2070 SUPER OC
- 2nd dGPU: GTX 550 TI (this one gets a new rant/post)
- RAM: 2x G.SKILL Ripjaws V 8 GB 3600 MHz
- PSU: Be quiet 650 W (It was the platinum edition afaik. I originally bought the 600 Watt Gold edition, but somehow they sent me the 650 Watt for no additional charge... which is great for me haha)
- HDD: 2x 4TB NAS HDD in RAID1 configuration (to load all of my games around 2 TB right now. Got the two HDDs for 110 Euro including the SATA Data cables)
- SSD: One Intenso 240 GB SSD and a reused Samsung 256 GB SSD from my old broken Lenovo laptop
- Case: Be quiet Pure Base 500 black with a glass panel on the side

While building my first PC, it was one hell of a challenge. I knew how it all was working in theory, but to put it all together, practically, was a bit of a challenge, but it was a nice challenge. I learned a lot and have a performance gain I could only ever dream of.

I used to play my games first on a Toshiba satellite l750d laptop (around 40 fps in cs:go with the lowest gfx settings) and then on a Lenovo e51-80 laptop (around 30 fps max minecraft with no shaders and texture packs).

Now I play cs:go on Kubuntu with 400 fps at peak with ultra high graphics. It is unbelievable.

I couldn't trust the system when I turned on the fps display the first time I saw it.

Submitting app to the App Store, time to sit back and take a break. :nothingtodohere:

I hate Intellij Idea but it's best option available to develop in Scala. Improvements in VSCode/Metals is my last hope.

The (few) things I NEED from Intellij:
* Very good autocompletion
* Refactoring tools (renaming, auto imports)
* Search tools (find usages, sub/super-types)

The (many) things I hate of Intellij:

* Layout with panel sizes doesn't behave properly and it scales instead of remaining fixed.

* Tedious 2-hands shortcuts makes the right hand to move a lot from the mouse

* Delays and lag in the UI, freezes on garbage collection

* High memory consumption, high CPU usage and generally slow and cumbersome

* The delay in the UI between commands is so that it's accidentally possible to introduce typos

* Can't move tabs around and organize them as I like

* Ugly font rendering and missing typography settings

* Multi-caret implementation as a different editing mode is annoying because requires frequent switching

* Unnatural code folding regions, why method arguments are not folded with the method?

* Unhelpful support forum, sometimes dismissive answers

* Highlighting of current word under the caret doesn't work

* Very slow editor, can't keep spacebar pressed to move text or it hangs!

* Several settings reset at every update. Like the auto fetch of git

* New features are added and enabled by default which is very invasive

* Some of the features mentioned above are really annoying and it's not possible/not trivial to disable them

* It uses its own compile and several times it highlights false positives

Whoops, my head will be squashed tomorrow. Asked to put monitoring in other week by boss, sysadmin been complaining about high CPU, apparently 10 requests (different domains) to the one VM on our servers every 10 seconds is killing it. However this server is being used for MySQL and serving web requests by Apache and PHP. Then also running a few jobs like consuming queues etc.

Wtf do I do? Every time I tell him about more resources (we have decent 2 rack servers just running 20 vms and only 1 VM is for web sites) he says software should be made to work with what we have.

So, i have that assignment about docker stuff. nifty piece of software i must say.

anyways im installing docker software on windows bc im thinking if i have something that gives me at least the correct structure and some skeletal syntax i will have a faster grasp of the thing. expecting some sort of high level ide but end up instead with what looks like a blank window, with the only obvious choice being sign into some bullshit i dont need. but thats another story

my point is:
when installing the thing it prompted me to install WSL2. which i supposedly am not supposed to have because my cpu doesnt support intel virtualisation. but being impatient (thats why i came to look for an assisted solution), i pursued the installation.

lo and behold: i end up with a shell prompt at the root of a linux filesystem!
i ran 2 or 3 muscle-memory commands and closed the prompt, i was in docker stuff up to the neck.
later on, when i go back to my project, in a virtual machine its sluggish af and screams at me that amd-v is not supported because of something something nested pages (will look up later how that one works).

dont have time to explore it some more yet, and especially experiment or even barely look at this glorious mess because i have something barely working and no time to have it fail.
but this story definitely left me perplexed.

and also : you can run WSL2 on an fx8350

A beginner in learning java. I was beating around the bushes on internet from past a decade . As per my understanding upto now. Let us suppose a bottle of water. Here the bottle may be considered as CLASS and water in it be objects(atoms), obejcts may be of same kind and other may differ in some properties. Other way of understanding would be human being is CLASS and MALE Female be objects of Class Human Being. Here again in this Scenario objects may differ in properties such as gender, age, body parts. Zoo might be a class and animals(object), elephants(objects), tigers(objects) and others too, Above human contents too can be added for properties such as in in Zoo class male, female, body parts, age, eating habits, crawlers, four legged, two legged, flying, water animals, mammals, herbivores, Carnivores.. Whatever.. This is upto my understanding. If any corrections always welcome. Will be happy if my answer modified, comment below.

And for basic level.

Learn from input, output devices

Then memory wise cache(quick access), RAM(runtime access temporary memory), Hard disk (permanent memory) all will be in CPU machine. Suppose to express above memory clearly as per my knowledge now am writing this answer with mobile net on. If a suddenly switch off my phone during this time and switch on.Cache runs for instant access of navigation,network etc.RAM-temporary My quora answer will be lost as it was storing in RAM before switch off . But my quora app, my gallery and others will be on permanent internal storage(in PC hard disks generally) won't be affected. This all happens in CPU right. Okay now one question, who manages all these commands, input, outputs. That's Software may be Windows, Mac ios, Android for mobiles. These are all the managers for computer componential setup for different OS's.

Java is high level language, where as computers understand only binary or low level language or binary code such as 0’s and 1’s. It understand only 00101,1110000101,0010,1100(let these be ABCD in binary). For numbers code in 0 and 1’s, small case will be in 0 and 1s and other symbols too. These will be coverted in byte code by JVM java virtual machine. The program we write will be given to JVM it acts as interpreter. But not in C'.

Let us C…

Do comment. Thank you

!rant #tip

Windows 10 - service host high cpu usage

Stop the superfetch service and it would be down to normal.

You should checkout the description of the superfetch service... Lol ):D

They dont mention it in any reviews but dell has cooling problems. Yesterday I bought a brand new g5 from a shop and fans were not spinning until 80c from which it started spinning at 4900rpm like a vacuum. Note that I have latest bios so its not temperature table problem in bios.

I found out that there is a driver for thermal power which you can install and for most people it does the work (runs 2200 rpm silent cooling for most of time and 4900 rpm when cpu gpu temp goes above around 60c which is annoying)

So I had to spend entire day on figuring out how to control cooling fans myself. And even then dell limited available speeds in bios at 0, 2200 and 4900 rpm.

Anyways now my cooling fans run at 2200 rpm until 70c and 4900 after. So i get some nice silent performance for 90% of what I do and as for gaming, full fans after 75c is fine. I ran DOOM from steam and max temps Ive got were around 85-90c which is pretty high, so Im thinking of doing a repaste event though im afraid of voiding the warranty.

Somebody please explain to Microsoft Win 10 team that normal usage of a computer should just work, home users don't have hours on end to spend on dealing with:

- BS sound drivers
- high CPU usage & diagnosing, log tracing from system processes
- many other crap you need to invest time constantly fixing or you don't have a useful machine

Windows 10 is a piece of shit

When you have high performance set, yet your lame CPU won't get above 0.75Ghz, so you have to constantly reboot to hit the 3.50Ghz jackpot

Please tell me there's an alternative to speedfan than lets me set up a custom curve for fan speeds. At the minute it's either constant server level noise. Or adjusting speeds manually every time i want to do something that requires high CPU load and putting them back to acceptable idle noise levels afterwards

Ok so that's my plan, find a kernel with HUGE amout of drivers and , high version.

I built a small os based on linux
-- kernel version 5.0.2 from Plop Linux,
many libraries added 'by hand' -- packages from apts of Debian&Ubuntu, and unpacked packages into system with ArchiveManager,
has GUI but it's called xfree86 ( looks strange when a very old app running on Kernel5 )
So, without compiling, i can make a os.

But i found that Plop didn't compile rtl8188eu module which makes linux support some specific network cards.

I have no professional compiler but a tiny C/Cpp compiler called TinyCC (aka. tcc), but for my pc ( CPU freq = 800MHz ), it seems not possible to compile the module by myself.

And then i downloaded a 5.2 kernel with modules from kernel.ubuntu.com, but when i tried to mount my disk ( part. vfat ), i got some errors like IO charset not found, and then i replaced it with Xanmod kernel but also reported an error said Invalid Arguments, but i checked /proc/filesystems, it supports.

So what can i do? Are there any pre-compiled kernel & modules with 'full common supports'?

I tried kernel 4.4 ( from Ubuntu 16.04 LTS ) just now but the driver crashed when wpa_supplicant tried to initialize the device.

spent a few days trying to track down the cause of a thermal shutdown in my workstation. intel 4790k with no overclock would spike to 95C on one core (core1) whenever maxing out all 8 threads, be it real work, mprime, anything with 100% cpu being used. I quadrupled my RAM from 8gb to 32, because its cheap and id like to have all data in memory sometimes, not because I thought that was the problem. I reseated my watercooling block. I checked out the PSU. I unplugged all unnecessary peripherals, drives, etc. It turned out to be a bug in Gigabyte MOBO BIOS (causing temps to be read incorrectly i think, still not exactly sure...) updated from version 5 to 10 and poof now temps are back in the high 50's at full load. it only took 2 days to figure out and i think i learned something

Display quality is a realm where Apple's options are straight up bargains, the cheapest thing to exist.
All I want is a display that ticks all the boxes: it has true blacks (probably OLED), high PPI (more than 200), high refresh rate (more than 120 hz), and good enough colors for graphic design. At $2,499, MacBook Pro 16 is an offering no one can touch.

I'm yet to find an external display that can match it. Gaming displays that have the refresh rate lack in color fidelity and PPI. Designer displays with good colors are almost all IPS and are all 60 hz.

Even if this godforsaken external display exists, it sure as hell costs more than 2.5k, and it doesn't even come with one of the best laptop CPU/GPU there is.