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This rant is a confession I had to make, for all of you out there having a bad time (or year), this story is for you.
Last year, I joined devRant and after a month, I was hired at a local company as an IT god (just joking but not far from what they expected from me), developer, web admin, printer configurator (of course) and all that in my country it's just called "the tech guy", as some of you may know.
I wasn't in immediate need for a full-time job, I had already started to work as a freelancer then and I was doing pretty good. But, you know how it goes, you can always aim for more and that's what I did.
The workspace was the usual, two rooms, one for us employees and one for the bosses (there were two bosses).
Let me tell you right now. I don't hate people, even if I get mad or irritated, I never feel hatred inside me or the need to think bad of someone. But, one of the two bosses made me discover that feeling of hate.
He had a snake-shaped face (I don't think that was random), and he always laughed at his jokes. He was always shouting at me because he was a nervous person, more than normal. He had a tone in his voice like he knew everything. Early on, after being yelled for no reason a dozen of times, I decided that this was not a place for me.
After just two months of doing everything, from tech support to Photoshop and to building websites with WordPress, I gave my one month's notice, or so I thought. I was confronted by the bosses, one of which was a cousin of mine and he was really ok with me leaving and said that I just had to find a person to replace me which was an easy task. Now, the other boss, the evil one, looked me on the eye and said "you're not going anywhere".
I was frozen like, "I can't stay here". He smiled like a snake he was and said "come on, you got this we are counting on you and we are really satisfied with how you are performing till now". I couldn't shake him, I was already sweating. He was rolling his eyes constantly like saying "ok, you are wasting my time now" and left to go to some basketball practice or something.
So, I was stuck there, I could have caused a scene but as I told you, one of the bosses was a cousin of mine, I couldn't do anything crazy. So, I went along with it. Until the next downfall.
I decided to focus on the job and not mind for the bad boss situation but things went really wrong. After a month, I realised that the previous "tech guy" had left me with around 20 ancient Joomla - version 1.0 websites, bursting with security holes and infested with malware like a swamp. I had never seen anything like it. Everyday the websites would become defaced or the server (VPN) would start sending tons of spam cause of the malware, and going offline at the end. I was feeling hopeless.
And then the personal destruction began. I couldn't sleep, I couldn't eat. I was having panick attacks at the office's bathroom. My girlfriend almost broke up with me because I was acting like an asshole due to my anxiety issues (but in the end she was the one to "bring me back"(man, she is a keeper)) and I hadn't put a smile on my face for months. I was on the brink of depression, if not already there. Everyday I would anxiously check if the server is running because I would be the one to blame, even though I was trying to talk to the boss (the bad one was in charge of the IT department) and tell him about the problem.
And then I snapped. I finally realised that I had hit rock bottom. I said "I can't let this happen to me" and I took a deep breath. I still remember that morning, it was a life-changing moment for me. I decided to bite the bullet and stay for one more month, dealing with the stupid old server and the low intelligence business environment. So, I woke up, kissed my girlfriend (now wife), took the bus and went straight to work, and I went into the boss's office. I lied that I had found another job on another city and I had one month in order to be there on time. He was like, "so you are leaving? Is it that good a job the one you found? And when are you going? And are you sure?", and with no hesitation I just said "yup". He didn't expect it and just said "ok then", just find your replacement and you're good to go. I found the guy that would replace me, informing him of every little detail of what's going on (and I recently found out, that he is currently working for some big company nowadays, I'm really glad for him!).
I was surprised that it went so smoothly, one month later I felt the taste of freedom again, away from all the bullshit. Totally one of the best feelings out there.
I don't want to be cliche, but do believe in yourself people! Things are not what the seem.
With all that said, I want to give my special thanks to devRant for making this platform. I was inactive for some time but I was reading rants and jokes. It helped me to get through all that. I'm back now! Bless you devRant!
I'm glad that I shared this story with all of you, have an awesome day!17
"4096 bit ~ 96 hours is what he said.
IDK why, but when he took the challenge, he posted that it'd take 36 hours"
As @cbsa wrote, and nitwhiz wrote "but the statement was that op's i3 did it in 11 hours. So there must be a result already, which can be verified?"
I added time because I was in the middle of a port involving ArbFloat so I could get arbitrary precision. I had a crude desmos graph doing projections on what I'd already factored in order to get an idea of how long it'd take to do larger
@p100sch speculated on the walked back time, and overstating the rig capabilities. Instead I spent a lot of time trying to get it 'just-so'.
Worse, because I had to resort to "Decimal" in python (and am currently experimenting with the same in Julia), both of which are immutable types, the GC was taking > 25% of the cpu time.
Performancewise, the numbers I cited in the actual thread, as of this time:
largest product factored was 32bit, 1855526741 * 2163967087, took 1116.111s in python.
Julia build used a slightly different method, & managed to factor a 27 bit number, 103147223 * 88789957 in 20.9s,
but this wasn't typical.
What surprised me was the variability. One bit length could take 100s or a couple thousand seconds even, and a product that was 1-2 bits longer could return a result in under a minute, sometimes in seconds.
This started cropping up, ironically, right after I posted the thread, whats a man to do?
So I started trying a bunch of things, some of which worked. Shameless as I am, I accepted the challenge. Things weren't perfect but it was going well enough. At that point I hadn't slept in 30~ hours so when I thought I had it I let it run and went to bed. 5 AM comes, I check the program. Still calculating, and way overshot. Fuuuuuuccc...
So here we are now and it's say to safe the worlds not gonna burn if I explain it seeing as it doesn't work, or at least only some of the time.
Others people, much smarter than me, mentioned it may be a means of finding more secure pairs, and maybe so, I'm not familiar enough to know.
For everyone that followed, commented, those who contributed, even the doubters who kept a sanity check on this without whom this would have been an even bigger embarassement, and the people with their pins and tactical dots, thanks.
So here it is.
A few assumptions first.
Assuming p = the product,
a = some prime,
b = another prime,
and r = a/b (where a is smaller than b)
w = 1/sqrt(p)
(also experimented with w = 1/sqrt(p)*2 but I kept overshooting my a very small margin)
x = a/p
y = b/p
1. for every two numbers, there is a ratio (r) that you can search for among the decimals, starting at 1.0, counting down. You can use this to find the original factors e.x. p*r=n, p/n=m (assuming the product has only two factors), instead of having to do a sieve.
2. You don't need the first number you find to be the precise value of a factor (we're doing floating point math), a large subset of decimal values for the value of a or b will naturally 'fall' into the value of a (or b) + some fractional number, which is lost. Some of you will object, "But if thats wrong, your result will be wrong!" but hear me out.
3. You round for the first factor 'found', and from there, you take the result and do p/a to get b. If 'a' is actually a factor of p, then mod(b, 1) == 0, and then naturally, a*b SHOULD equal p.
If not, you throw out both numbers, rinse and repeat.
Now I knew this this could be faster. Realized the finer the representation, the less important the fractional digits further right in the number were, it was just a matter of how much precision I could AFFORD to lose and still get an accurate result for r*p=a.
Fast forward, lot of experimentation, was hitting a lot of worst case time complexities, where the most significant digits had a bunch of zeroes in front of them so starting at 1.0 was a no go in many situations. Started looking and realized
I didn't NEED the ratio of a/b, I just needed the ratio of a to p.
Intuitively it made sense, but starting at 1.0 was blowing up the calculation time, and this made it so much worse.
I realized if I could start at r=1/sqrt(p) instead, and that because of certain properties, the fractional result of this, r, would ALWAYS be 1. close to one of the factors fractional value of n/p, and 2. it looked like it was guaranteed that r=1/sqrt(p) would ALWAYS be less than at least one of the primes, putting a bound on worst case.
The final result in executable pseudo code (python lol) looks something like the above variables plus
while w >= 0.0:
if (p / round(w*p)) % 1 == 0:
x = round(w*p)
y = p / round(w*p)
if x*y == p:
w = w + i
Still working but if anyone sees obvious problems I'd LOVE to hear about it.39
When a Coursera course is way better than the one offered by your university…
A university student's rant...
I study Electrical and Computer Engineering and during the first semester of the second year I selected an optional course: Web Programming. It was believed among students that the course would be really easy, and it was. All the student had to do was build a very simple website using HTML, CSS and a few line of JS. A website containing three or four pages all of which had to be validated using a markup validation service.
Yeah, sure, I passed the course just like everyone else who bothered enough to spend an hour or two working on the project. Oh, I almost forgot! We had an one-hour workshop on Dreamweaver!
So, by that point, everybody was a front-end developer, right?!
That happened over three years ago, and because of that course web-development didn’t impress me…
Thankfully, the last few months I’ve became interested in Web Development, and I’ve been reading some articles, spending time on smashing magazine, making some progress on FreeCodeCamp and taking relevant courses on Coursera!
Oh boy, the things I didn’t know that I didn’t know…
<sarcasm>Did you know there was a term called “responsive design” and that there are frameworks like bootstrap?</sarcasm>
Well, I d i d n ’ t k n o w ! ! ! (even though I had taken the university’s course).
I understand that bootstrap was introduced in 2011 and I took the university course in late 2012, but by that time, bootstrap was quite popular and also there were other frameworks available before bootstrap that could have been included in the course! (even today, there is no reference in responsive design in the university’s course).
In just five weeks the coursera course managed to teach me more, in a more organized and meaningful way than my university’s course in a whole semester!
When I started the coursera course I shared it with a friend of mine. His response: “yeah, sure, but web development is pretty easy… I didn’t spend much time to complete that project three years ago!”
That course three years ago gave birth to misconceptions in students' minds that web development is easy! Yeah, sure, it can be easy to built a simple, non responsive, non interactive website! But that's not how the world works nowadays , right?!
A few months ago, in the early days of August, I attended Flock, the Fedora community conference. During a break I spent some time speaking with a Red Hat employee about student internships. He told me, and I paraphrase: “We know that students don’t have a solid background and that they haven’t learned in the university what we need them to!”
Currently I’m planning to apply for a front-end developer internship position here in Greece.
Yesterday I wrote my CV, added university courses relevant to that position and listed coursera courses under independent coursework… While writing those I made these thoughts…
What if that course 3 years ago was as good as the coursera course… all the things I’d know by now…6
It is time... to rant about macs!
No, seriously - I had such a different experience about which not many talk in real life or pretend that it never happens....
Model: 2015 mid MBP 15" with second to highest specs (don't have dedicated gpu).
Rattling fucking toy.... Yea, it rattles! If you shake/move ir sit in trait/bus - it non-stop rattles as a fucking toy. Worst part? It's confirmed issue by apple and it manifacturing issue that they are not keen on fixing!!!! WTF? We have 4 macs in our office - all of them fucking rattles... God help me how annoying that is. (Lose LCD control panel that unsticks from glue. Replacing it solves the issue for 1 month if you carry it anywhere).
Constant fucking crashing/updates.... Every morning I wake up and don't have an app that requires confirmation for restart - it's restarted. YAY, turning on all apps once again.... Why you may ask? Well, because if you tinker with software in any way - it fails to update it and hell breaks lose. It's been a long time since High-Sierra came around and the issue is still there (not running Mojave as it conflicts with soft I have... Woo!). Tried few times - updates fail. Resolution? Reinstall OS!
OS conflicts with applications - damn... People told me it works out of the box.... Yeah, as long as you don't upgrade the OS - then it breaks. Why? Well, because.
Piece of shit power supply. With 4 of our office power supplies - 2 of them failed twice withing warranty and once afterwards... Really? Not to mention that all 4 are starting to shear the sleeve or already did (mine is just wrapped with white electrical tape to give it a support... lol).
Bluetooth - who the hell needs that in mac, right? Well, people do. To start with - it conflicts with 2.4GHz wireless network - you might have one of those and not both at the same time. Next thing is using a device that needs constant connection (mouse, headphones, keyboard - non apple branded) - shit... They can't stay connected for more than an hour without any issues... Constant battle to re-connect it, to re-pair the device and all due to smart apple bluetooth settings. Hell, my mouse (logitech MX master) was even printing random symbols in some applications if moved. All of the issues went away after using a bluetooth dongle... WOO!!!!
Xcode... Ahh, you may never prepare your mac if you don't download 17GB of fucking xCode libraries that enables some tools to be installed/runned as you can NOT get them in any other way and you have to install full xCode software in order to get them... YAY! 17GB wasted on my 256GB SSD that I can't upgrade. GREAT!
OsX applications - ah, don't get offended but if you are using them and you are fine with them - you are probably a monkey that loves being told what to do. You can't customise any actions, you can't configure it the way you like - either you accept their default workflow or go kill yourself. Yep... Had issues with calendar, mail, iMessages, safari... None of them fit my needs :)
Resolution scaling... Fucking hell, the display is 2880 x 1800 but all you let me to use is 1440x900 without scaling? Am I blind to you? Scaling the resolution means that you are fucked if some applications don't support scaling very well. Looking at you Jetbrains - your IDES suck at scaling and slows down the pc to a potato....
Now the pros - keyboard is way better than the new ones, trackpad is GREAT - no need for mouse (using it on external 4k displays only), the battery life is great - getting around 6h of continues development time, 8 if using sublime instead of phpStorm and well, that's about it...
I've bought this device due to the fact that at that time mac and windows pc's with similiar specs costed the same while windows pc sucked with their quality of the device and trackpad... Now the situation is better and when time comes for a next upgrade - it's going to be one of these:
Razer Blade 15, Dell XPS 15, Lenovo Carbon X1 series.
And of course - LINUX. I've had enough issues with windows, and had enough of retardness of apple ecosystem, so switching it is a must for me.
Disclaimer: I might be an unhappy customer, a bit picky but I'd like my device to be setted up as I like and continue to have that until I don't like, not until the company decides to break it. Not to mention that paying almost a yearly salary in my country for one device - I'd expect it to be at least reliable and work without issues....
ps. You can disagree with me, this is my personal experience with MBP over the last 3 years :)10
Cannot understand those who are frustrated with it.
Sure, one can feel frustration when some project is not going as they were supposed to go, but that is life for ya, boi.
Without wanting to offend anyone it feels like devs who complain so much either do not actively search for a solution and learn shit properly and cry their soul out afterwards or they do search, but cannot find anything.
Patience is the solution. Do not let yourself fall down and stay strong.
Even if it takes a lot of willpower, retries, inner pain, patience and non-sleepy nights, you will and can do it. I believe in you.
My whole life was basically a psychological disaster.
I have had and still have depression and a lot of short frustrations from time to time, too, but I do not cry it out loud.
My high school is fucked up. In every single aspect. I am doing all-nighters almost every day. With maybe half an hour of sleep to get school projects done on time.
I cannot just say "fuck you. I am not gonna do this shit" to school, because that would affect my grades in a negative way. Same thing applies to you, as an employee, too. But at least you do not need to be afraid of getting bad grades.
Bad grades->not getting the desired degree->bad chance of finding a job
In your case:
Bad communication with boss->bad connection->bad chance of finding a job
But is that really so?
I do not think so. Nonetheless, you still can have a good chance of finding a job, if you have proven yourself to others in a great way. Everyone has bad times. Even with their bosses. That's normal. Being bad with someone does not make yourself bad in general.
The job world will still accept you, but school won't accept you again. Whenever I feel like the burnout is about to catch me, I take an immediate break and go outside. Take a walk in the sunset. Go to the forest. Run with music playing loudly. Swim. And other things like watching the stars in the silence of the night.
To finally come to an end here...
Do not make yourself feel bad that quickly and try to endure the pain. This is going to make you a better and stronger person.
If you cannot do it anymore (hitting the borders of burnout), take your time and do whatever makes you happy and treat yourself.
Life is not all about work. Were you born to be a worker? No. Were you born to be a slave of others? No.
What is holding you then? Let go of all the stress (for a minute). You are free.
You are a great person.
Do not forget that.8
Meetings.. Was I not listening? Blame it on the ADHD (Attention Deficit Hyperactivity Disorder).
Maybe society has AEHD (Attention Expected Hyper-Delusion).
Seriously, who can pay attention to someone speaking AT you.
We have amazing magical devices one can enchant to do their bidding; Contemplating the details of such, often, is more enjoyable than what your rambling on about, talking head.
Not sorry, ;).
Also THANK YOU, you amazing MIT's (Manager of Information Technologies). A lot of you understand and even may use your underling employee's as a vented heat sync for your frustrations. I love what you do and thank the universe I don't have to engage myself in those activities. I have sympathy for the decision to give up your jeans and t-shirts for business attire; keep strong, your role is vital. <3
The insomnia is going to have to give me a break. Work in 3 hrs, time for a nap; and no, I don't take ADD medication (Amphetamine). I don't need a prescription; I can procure my own drugs, thank you.
Nor would I do them to get through work, that's drug abuse.5
I thought it worth repeating the wisdom I spotted there:
"That's what the Test Track at Velim is for"....methinks that modern managers, project managers and beancounters need reminding of this.
My experience lately is that when folk of their ilk hear 'apply all the edge cases', what they hear is 'blahhhhh blahhhhh blahhhhhh un-necessary time and cost' and promptly chop those 'edge-ish' bits out of the test and/or approvals plan.
I'm lucky enough to have had a diverse and very enjoyable career testing things for a living, in an organisation where you were *expected* to try and break the thing you were working on (within sensible limits).... the rational being that if it went wrong in-service, it would be seriously inconvenient for users, if not downright Goddamn dangerous (Think national-scale 'phone infrastructure - no 112/911 service=big problems!).
We were well paid to have a negative attitude towards 'Product Whatwever' in those days - actually a realistic attitude from a Systems point of view - which was endorsed by the C-Suite as necessary for product quality. The attitude was that if Joe Public doesn't have an issue then we've done the job right.
Most of the time, we would end up fixing an issue, even the 'Very Low Probability, Medium Impact' ones on the (proven!) assumption that if Mr. Sod can stuff it up, he will.
With this modern 'continuous delivery' way of working, I find the 'edge' cases get ignored as a fix is seen as 'only a software update away' - no matter that the poor sap trying to use the thing has to wait weeks/months/forever for a fix.
Nobody wants to take the time and trouble to create a robust product any more, and it's hard to take pride in your work (About 50% of my output at the moment is crap, because 'timescales' and workload).
The world is increasingly run/managed by people who have absolutely no idea of the technicalities and complexity of modern systems.
Here endeth this rant.