I absolutely HATE "web developers" who call you in to fix their FooBar'd mess, yet can't stop themselves from dictating what you should and shouldn't do, especially when they have no idea what they're doing.

So I get called in to a job improving the performance of a Magento site (and let's just say I have no love for Magento for a number of reasons) because this "developer" enabled Redis and expected everything to be lightning fast. Maybe he thought "Redis" was the name of a magical sorcerer living in the server. A master conjurer capable of weaving mystical time-altering spells to inexplicably improve the performance. Who knows?

This guy claims he spent "months" trying to figure out why the website couldn't load faster than 7 seconds at best, and his employer is demanding a resolution so he stops losing conversions. I usually try to avoid Magento because of all the headaches that come with it, but I figured "sure, why not?" I mean, he built the website less than a year ago, so how bad can it really be? Well...let's see how fast you all can facepalm:

1.) The website was built brand new on Magento 1.9.2.4...what? I mean, if this were built a few years back, that would be a different story, but building a fresh Magento website in 2017 in 1.x? I asked him why he did that...his answer absolutely floored me: "because PHP 5.5 was the best choice at the time for speed and performance..." What?!

2.) The ONLY optimization done on the website was Redis cache being enabled. No merged CSS/JS, no use of a CDN, no image optimization, no gzip, no expires rules. Just Redis...

3.) Now to say the website was poorly coded was an understatement. This wasn't the worst coding I've seen, but it was far from acceptable. There was no organization whatsoever. Templates and skin assets are being called from across 12 different locations on the server, making tracking down and finding a snippet to fix downright annoying.

But not only that, the home page itself had 83 custom database queries to load the products on the page. He said this was so he could load products from several different categories and custom tables to show on the page. I asked him why he didn't just call a few join queries, and he had no idea what I was talking about.

4.) Almost every image on the website was a .PNG file, 2000x2000 px and lossless. The home page alone was 22MB just from images.

There were several other issues, but those 4 should be enough to paint a good picture. The client wanted this all done in a week for less than $500. We laughed. But we agreed on the price only because of a long relationship and because they have some referrals they got us in the door with. But we told them it would get done on our time, not theirs. So I copied the website to our server as a test bed and got to work.

After numerous hours of bug fixes, recoding queries, disabling Redis and opting for higher innodb cache (more on that later), image optimization, js/css/html combining, render-unblocking and minification, lazyloading images tweaking Magento to work with PHP7, installing OpCache and setting up basic htaccess optimizations, we smash the loading time down to 1.2 seconds total, and most of that time was for external JavaScript plugins deemed "necessary". Time to First Byte went from a staggering 2.2 seconds to about 45ms. Needless to say, we kicked its ass.

So I show their developer the changes and he's stunned. He says he'll tell the hosting provider create a new server set up to migrate the optimized site over and cut over to, because taking the live website down for maintenance for even an hour or two in the middle of the night is "unacceptable".

So trying to be cool about it, I tell him I'd be happy to configure the server to the exact specifications needed. He says "we can't do that". I look at him confused. "What do you mean we 'can't'?" He tells me that even though this is a dedicated server, the provider doesn't allow any access other than a jailed shell account and cPanel access. What?! This is a company averaging 3 million+ per year in revenue. Why don't they have an IT manager overseeing everything? Apparently for them, they're too cheap for that, so they went with a "managed dedicated server", "managed" apparently meaning "you only get to use it like a shared host".

So after countless phone calls arguing with the hosting provider, they agree to make our changes. Then the client's developer starts getting nasty out of nowhere. He says my optimizations are not acceptable because I'm not using Redis cache, and now the client is threatening to walk away without paying us.

So I guess the overall message from this rant is not so much about the situation, but the developer and countless others like him that are clueless, but try to speak from a position of authority.

If we as developers don't stop challenging each other in a measuring contest and learn to let go when we need help, we can get a lot more done and prevent losing clients. </rant>

Me: ooh my eyes hearts, I have to sleep now, I fix this tomorrow morning.

(go to sleep)

Inner Me: hey
Me: ...
Inner Me: pisst! wake up
Me: what?? leave me alone I'm tired
Inner Me: remember that issue you had?
Me: yes?
Inner Me: this is how you can solve it
Me: great thanks, I'll fix it later
Inner Me: no no you have to fix it now
Me: I'm tired, I'll fix it first thing in the morning
Inner Me: no no you'll forgot it
Me: no I won't, let me sleep
Inner Me: no no you'll forget and I won't tell you again
Me: look I write it down in my phone now leave me alone
Inner Me: no no you have to fix it now.
Me: *crying* for God sake...

(gets out of bed and try to turn on PC and it's not starting, realizing that the power is out)

Me: you happy now, I fix it tomorrow.
Inner Me: no no stay awake till power is back on.
Me: SHUT THE FICN ON PICK OF CRAPE. Did SHDUHDBD DBDJDB

POSTMORTEM

"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
bit lengths

@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:
print("factors found!")
print(x)
print(y)
break
w = w + i

Still working but if anyone sees obvious problems I'd LOVE to hear about it.

For fucking once in my life I decide to go very early to bed so I can be 100% clear in my head for today's meetings. What happens is the following:
1. going to bed at 10pm.
2. Falls asleep relatively fast (yay)
3. Wakes up at 1am
4. Has a major headache and gets dizzy when I get up to go take a leak
5. Grabs a huge glass of water
6. Goes to sleep again
7. Wakes up at 3am with major headache and gets dizzy when I get up again.
8. Grabs another huge glass of water and goes back to sleep.

It's now 4:36am and I'm wide awake, with no headache, and no ability to sleep apparently. F... M... L!!!

Not been a good day so far:
1. Woke up to my Synology in a 'Volume crashed' state. Tried to contact support via web page; support web page not loading.
2. Ancient software at work stops working. As the last remaining C++ dev, I gotta troubleshoot. Original developer wrote test program...in VB6.
3. Server config file changed, but all the admins swear up and down nobody's made any changes.
4. Client calls account rep and wants to know about our security policies, so he schedules a meeting with me and client and forgets to mention until he's emailing me asking where the hell I am. From the tone of the conversation between the rep and the client, it's clear that somehow I'm to blame for being late.

Sigh.

Well, hey, at least it's Friday, right? Right?

I'm here in my bed. I can't sleep and in less than 5 hours I will have an important exam. I was thinking that a few months ago I went to a IT company as a school program. I would have to stay there for 2 weeks and "work" for them.

Upon arrival, the guy who had to monitor me gave me a sheet of paper with 5 alghoritmic problems to solve. He tells me to use java and hands me a laptop. naturally with windows. I try to look for some ideas but I can not find anything. I go to the control panel and search for something. Obviously there is a lot of bloatware and nothing catches my attention. then strangely I find something called oracle ... something ... but when trying to open it it gives me an error.

Fuck me. I decided to open notebook(normal one not ++ or something) and start solving the problems trying to remember the names of the methods and the classes based on what I had learned in school. then the guy comes back and looks at me puzzled. I tell him I did not find any IDE for java and the only one I found seem to give me an error. The guy double clicks and the program opens...fucking shit... He tells me to finish the problems and goes away perplexed. I copy the code from notepad to the IDE, I check the errors, I run it and the add some comments and I call the guy. he looks at the code, says that everything seems fine and then assigns me other things to do.

Now. HOW FUCKING STUPID MUST SOMEONE BE TO THINK THAT WRITING JAVA IN NOTEPAD IS A VIABLE CHOICE, AMONG ALL THE POSSIBLE SANE CHOICES I COULD HAVE MADE LIKE TRY TO UNDERSTAND THE ERROR OF THE IDE OR CALL THE GUY... NO. MY LITTLE SHOTTY FUCKING BRAIN DECIDED THAT NOTEPAD WAS A GOOD CHOICE. IF I COULD GO BACK IN TIME IN THE SAME MOMENT THAT I OPENED NOTEPAD I WOULD BITCH SLAP MYSELF SO HARD THAT I WOULD LOSE MY SOULD AND THE LAST 2 NEURON THAT MADE THAT SHITTY CHOICE. I WOULD BITCH SLAP MYSELF SO HARD THAT THE KINETIC ENERGY PRODUCED WOULD COLLAPSE THE UNIVERSE ITSELF. AND FROM THE DARKNESS A NEW UNIVERSE WILL BE BORN. A UNIVERSE WHERE THERE IS NO JAVA OR WINDOWS. A UNIVERSE WHERE MY 2 NEURONS WOULD HAVE MADE THE SHITTIEST DUMBEST CHOICE EVER IN A I LAST MISERABLE SELF DESTRUCTIVE ATTEMPT.

but then I come on devrant and I read about people who did thing worse than writing java on notepad and then everything is fine

PS my English is so bad I had to use Google translate, write an original version, translate it and do a side by side comparison with my translated version to check If I could improve something. Don't now If It improved the quality or not...

I would like to rant one more time about my internship.

I began in July, the first. That's my sister who helped me to find this internship and I was a little scared about how bad it could be.
I came at the office, my boss told me that I would work in an "Innovation lab", an apartment where people works on projects that are less corporate than the enterprise's ones.

To me, it was amazing. So I came in this apartment, it was like a dream. I didn't know that I would have such luck to be in this environment : kitchen, sofas, beds, many decorations for all political ideologies, ideas. There was some decorations that were about weed and many cool things for the young guy I am.

The lab's leader told me that it was a very free environment and all the awesome stuff I could use.
Then they showed me where I would work.

We were two interns employed as web developers. We had a complete room for us.
Then we began to work there, and I was presented to my internship tutor.
He gave me some instructions but told me that I had a week before the project begin.

Here began the troubles.

We waited a complete week without having any instructions. Then we began to build something in PHP with our knowledge and the informations someone from the lab gave us.
When finally we had news from the project, two weeks later, we learned that the project would be built with ASP. NET.
Here we go, I learn ASP. NET alone. I have many problems and nobody helps (even if the problem comes from enterprise's API/Framework). I finally make something usable with no help, after I discovered that my mate wasn't developer at all and just took an option for her classes which forced her to get an internship.

She had 3 month left, I had 6.
Then when the project really began, nobody came to verify what I was doing and on a meeting, they said that I was doing nothing.

The boss even became mad on us because he couldn't see what we were doing (we're back end developers).
I asked for help to the developers of the enterprise and someone came, sad to have to help an internship, and learned some tricks but nothing else.

To have a concrete explanation of what DDD was, I had to ask 4 times for help.

Finally I had something that could receive data from the connected hives we are working on and store them into a database in the architecture of the enterprise.

Then, they wanted me to try an API for them. I tried, and it wasn't working at all. So they make me still wait to change my whole architecture when the API will be released.

Recently, I was told that I would never do the front-end of the project (which was an horror because of the fantasm of the lab leader). Then they realized that my late wasn't a programmer. So they asked me to make a prototype for the front-end. I did for a presentation.

Then they didn't tell me the device they would use for the presentation and it was an iPhone 7. Idk why, safari couldn't display what IE can.

They blamed me for having done a bad work. It wasn't my job. I did it to help because they can't find a fucking front-end developer with a little more experience than me.

Actually, I am an alone developer since my mate is gone and the lab leader don't want me to show up because she considers me as a shame.
I asked to be moved back in the office of the enterprise, they agreed and said it was a 2-weeks delay. It's the Thursday of the second week and I have no news. I send mails to my tutor, even SMS, he doesn't answer me. They didn't call me to give me my pay with a week late. And the person who is responsible doesn't answer me neither. I came to see her, but she wasn't available. I'm now alone in a desk, waiting the time to pass.

Fucking this shit.

I'm in France.

EDIT : I forgot to say that I can't use the sofas or bed because I'm allergic to cats and there were 3 cats. Now there is still one and this beast vomits and poos everywhere in the house...

I will be there at the same time I don't have a car so I can get a ride to the airport on Friday and I will be there at the same time I don't have a car so I can get a ride to the airport on Friday and I will be there at the same time I don't have a car so I can get my car out the time to do it again and I look forward to hearing from you in awhile I have a few questions about the other I have a few questions about the same as the other day I will have a talk at you and I hope to see everyone again and again I apologise I didn't get a response to your advertisement for a while but it is a little chilly here is a copy to the store to buy the car is in a good way to start a little more time with the family for a while but it is a little chilly here is a copy to the time of the year for the first time in a long time and I don't want it for a couple days so I'm just trying for you guys I just want a ride with us to get a few things done and I will be there at the end if this works out well for you and your family a very happy and excited about this weekend so I'm just going to go to the store and get back with me and my family is going to be a little late today but I'm still in my car and I will be there at like midnight so much and have to be at work at the moment but I'll try again later in life I have been trying to get a hold of the guy that I have a meeting with you to discuss the details of the job and I have been working in my room so I can get a ride to the airport on Sunday so we are all on my own and I will be there at noon so I'll just be me my money back and I will get it done this weekend but I will be there at the same time and where would we have been in the hospital for a week or two to see you soon and have a great day today love it and it will not work for me to come in and get a new phone or in person and I am not sure how long it would have taken it off and on again and again I apologise I didn't know you were going to be a little late to the game and it will not work on it this morning I was wondering if you had a choice but I don't know if you have any questions please feel free to contact me at any rate is higher up for it and the other is a good time to come in for an appointment with the surgeon on my phone and I don't want to be a good friend to come in at all and the other is a good time to call and talk about what we can do to help you feel better I can come by to pick up the kids from school today so I'm not going anywhere for the next few days and I have a few more days before we get into my car to go out for lunch at home and I will be there at the same time as you can imagine how hard is it to late to get a new car is a lot more done with the interview and the kids will have a good day at school today so I'm not going anywhere for the next two days so we are all on my way home from the gym and then I will be able to make it today because I'm a very nice person who can do it for you if you want to come by and see you soon and have to go back in the office tomorrow morning at work today but I'm going back and I will be there at the same time and where would we have been trying all of us and the rest are you still interested I can send you a picture of the front and back of the house and the kids are going well with the family for a while but it is a little chilly here is a picture of the front and back of the house is in my prayers as a friend but it will have a great weekend and I will be there at the end if this works out well and that your mom and dad are going to be a bit of an emergency at least you have a good day at school today so I'm going to be in the office tomorrow and will be back to the hotel now I'm in bed with a friend and then I will be able to make it to the meeting tonight but I will be there at the same time I was in a hurry and come to the office and I will send the other side and a little about me and you will see that you sent it out and get a good deal and you have the address of where I can get a ride to work on it this week but will have a good day at school today so I'm not going anywhere for the next two days so we are going to be in the office tomorrow and I have been working in the morning and I will get it done this weekend but will be back in the office on Monday and Tuesday and Wednesday are going well for you and your wife is not the case then you have the address of your day goes on and I have been working in the morning and I will be there at the same time I am in need and I'll see what the status is on the way to the airport and then we will have a great day at school today so I'm trying to get a hold of the guy who was the guy who was the guy who is going well and I am going to be out by then but if I can find a way to get the car out the door to go to the store and I have to be in a relationship with a friend and then I will be able to make it to the meeting and will get the info for the guy who was the guys are doing the meeting at the church

I need to rant about life decisions, and choosing a dev career probably too early. Not extremely development related, but it's the life of a developer.

TL;DR: I tried a new thing and that thing is now my thing. The new thing is way more work than my old thing but way more rewarding & exciting. Try new things.

I taught myself to program when I was a kid (11 or 12 years old), and since then I have always been absolutely sure that I wanted to be a games programmer. I took classes in high school and college with that aim, and chose a games programming degree. Everything was so simple, nail the degree, get a job programming something, and take the first games job that I could and go from there.

I have always had random side hobbies that I liked to teach myself, just like programming. And in uni I decided that I wanted to learn another language (natural, not programming) because growing up in England meant that I only learned English and was rarely exposed to anything else. The idea of knowing another fascinated me.

So I dabbled in a few different languages, tried to find a culture that seemed to fit my style and attitude to life and others, and eventually found myself learning Korean. That quickly became something I was doing every single day, and I decided I needed to go to Korea and see what life there could be like.

I found out that my university offered a free summer school program for a couple of weeks, all I had to pay for was the flights. So a few months later I was there and it was literally the best thing I'd done in my life to that point. I'd found two things that made me feel even better than the idea of becoming the games programmer I'd always wanted to be. Travelling and using my other language to communicate with people that I couldn't in English. At that point I was still just a beginner, but even the simple conversations with people who couldn't speak English felt awesome.

So when I returned home, I found that that trip had completely thrown a spanner into my life plan. All I could think about after that was improving my language skills and going back there for as long as possible. Who knows what to do.

I did exactly that. I studied harder than I'd ever studied for anything and left the next year to go and study in Korea, now with intermediate language skills, everyday conversations no longer being a problem at all.

Now I live here, I will be here for the next year and I have to return to England for one year to finish my degree. Then instead of having my simple plan of becoming a developer, I can think of nothing I want to do less than just stay in England doing the same job every day, nothing to do with language. I need to be at least travelling to Korea, and using my language skills in at least some way.

The current WIP plan is to take intensive language classes here (from next week, every single weekday), build awesome dev side projects and contribute to open source stuff. Then try to build a life of freelance translation/interpreting/language teaching and software development (maybe here, maybe Korea).

So the point of this rant is that before, I had a solid plan. Now I am sat in my bed in Korea writing this, thinking about how I have almost no idea how I'm going to build the life that I want. And yet somehow, the uncertainty makes this so much more exciting and fulfilling. There's a lot more worrying, planning and deciding to do. But I think the fact that I completely changed my life goals just through a small decision one day to satisfy a curiosity is a huge life lesson for me. And maybe reading this will help other people decide to just try doing something different for once, and see if your life plan holds up.

If it does, never stop trying new things. If it doesn't (like mine), then you now know that you've found something that you love as much as or even more that your plan before. Something that you might have lived your whole life never finding.

I don't expect many people to read this all, but writing it here has been very cathartic for me, and it's still a rant because now I have so much more work and planning to do. But it's the good kind of work.

Things aren't so simple now, but they're way more worth it.

Trying to sleep. Looking at devRant. See a f ew rants about bugs which reminds me of my bug. Get out of bed and now behind my computer trying to fix the bug. Hope it's a quick one so I can go back to sleep

Today has been a weird day. AWS us-east-1 region has been having huge issues for hours now, with the console and multiple services down or erroring out. My day has been an odd mix of twiddling my thumbs with nothing to do and trying to calm down angry people who are also twiddling their thumbs with nothing to do.

I'm tempted to just log off Slack and leave an auto-reply of "Can't fix it, no workaround, leave me alone" so I can go back to bed.

I’ve had knee pain for as long as I can remember, it’s just a part of having flat feet. Last night the pain flared up around 10:30pm. Went to bed at midnight hoping it would get better. I had no sleep, the pain is everywhere. My knees, my back, shoulders, head. My bones ache constantly and I don’t know what to do. I gave in and took a painkiller about an hour ago, just took an anti-inflammatory. I don’t know what’s going on, all I know is pain. My bones feel like they’re about to shatter and it’s really difficult to not go to the worst case scenario right now

Okay, so not eating has become a major problem now. This morning when i got out of bed and stood up, i fell backwards in to my bed again. I couldn't see anything, all black. A few minutes went past and i got back on my feet, got dressed and headed to school.

The thing is, a day can go past and i won't feel hungry at all. But i have to eat, but i don't.

Am i the only one with this problem?

Another thing that is happening is that when i get home from school i sit down in front of my computer and start to write some code, hours fly by and there goes that day, no homework done either.

No food, no homework. Only coding. I think i have a serious problem 😂.

On a side note, a few days ago i tasted coffee for the first time, and now i can't resist buying a cappuccino/latte when i walk past espresso house in the morning.

Here's a interesting question, why the fuck did you waste your time reading this? 😂