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Search - "we have bigger problems"
Senior frontend Dev at my company: "microservices best thing ever"
Also him: "Relational databases gonna die"
Also him (talking to the DB team): "You're gonna dissapear, Mongo is the future"
Me: "Eh... Dude, Mongo is still a database.."
Senior manager calls me at 3pm today. I’ve known about this issue since last Friday, one of her pions told me to hold off until Thursday when he’s back in the office and that I could prioritise other tasks.
I have another task with a deadline of the 21st with the potential for fines if it’s not done.
Snr manager: “I’m calling to see how this is going”
Me: “cool, it’s not, bigger problems in the world”
Snr manager: “waah, this has to be done Monday or we face the potential of a court case, fines, this is the biggest problem in the world”
Me: “I’ve known about this issue for a week, have been told not to worry too much and nobody has mentioned the impact or timeline you’ve just given me.”
Snr manager: “so can it be done for monday”
Me: “no chance”
Snr manager: “why not?”
Me: “because it’s 3pm Friday and I have 1 hour of Work left, good luck”
My manager was in the room, he got an arsey call soon after. I don’t really care how that one went but he’s a good guy so I’m sure it was fine.
I also had the joy of asking: so give me an idea of the potential fine... to which they wouldn’t give me an answer.
I need this to weigh up which of the potentially finable tasks takes priority.
The other team that had trouble told me all the dates, gave me over a months notice and the scale of the problem.
If you want someone to help: be polite, give them as much warning as you have and be absolutely honest.
The job’s done cause I’m a fucking legend. But they’re not gonna find out until 5pm Monday. That’s the dickhead tax, they get the dickhead tax for being dickheads.
I’m gonna spend Monday working from home, incommunicado. Fuck incompetent arseholes.
Enjoy your weekend everyone, I know I will mine.13
Client:"So we would like to found a new company and offer IT and network consulting. Would you be able to build our website?"
Me:"Absolutely. What will be the name of your company?"
Client:"The name is going to be 'Generic-IT'. The website is going to be 'generic-IT.com' . We checked that with google."
Me:"I am sorry to tell you that generic.com is already taken by another company. Incidentally that company offers the same services, that you intend to offer. They also seem to be quite big an have businesses in 5 different countries.
Because of this I advise you to pick a different name that does not get you into trouble and makes positioning your own brand easier."
Client:"We want to neglect that problem for now."
Me:"0.0 ..... -_-""""
"Well, listen. Apart from the possible branding and copyright problems imagine how people will find you on the web. ...What will happen if you google 'generic IT'?"
Client:"Yeah well, we want to neglect that. And with SEO you can do something about that."
Me:"..........Welllll, you that SEO is not a cure all, right? The older an bigger company will come up first. Why not avoid that missunderstanding and come up with a unique name?"
Me:"Please tell me. Doesn't any part of my argument make sense to you?"
Me:"Well, ok. I will send you the estimate on monday."
Then over a back channel I hear that the client is ...bewildered, why I would not stick to my area of expertise.
There I was now. Left bewildered myself, being the one with the webagency that does frontend design and branding.7
"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
Taking IT classes in college. The school bought us all lynda and office365 accounts but we can't use them because the classroom's network has been severed from the Active Directory server that holds our credentials. Because "hackers." (The non-IT classrooms don't have this problem, but they also don't need lynda accounts. What gives?)
So, I got bored, and irritated, so I decided to see just how secure the classroom really was.
So I created a text file with the following rant and put it on the desktop of the "locked" admin account. Cheers. :)
1. don't make a show of "beefing up security" because that only makes people curious.
I'm referring of course to isolating the network. This wouldn't be a problem except:
2. don't restrict the good guys. only the bad guys.
I can't access resources for THIS CLASS that I use in THIS CLASS. That's a hassle.
It also gives me legitimate motivation to try to break your security.
3. don't secure it if you don't care. that is ALSO a hassle.
I know you don't care because you left secure boot off, no BIOS password, and nothing
stopping someone from using a different OS with fewer restrictions, or USB tethering,
or some sort malware, probably, in addition to security practices that are
wildly inconsistent, which leads me to the final and largest grievance:
4. don't give admin priveledges to an account without a password.
seriously. why would you do this? I don't understand.
you at least bothered to secure the accounts that don't even matter,
albeit with weak and publicly known passwords (that are the same on all machines),
but then you went and left the LEAST secure account with the MOST priveledges?
I could understand if it were just a single-user machine. Auto login as admin.
Lots of people do that and have a reason for it. But... no. I just... why?
anyway, don't worry, all I did was install python so I could play with scripting
during class. if that bothers you, trust me, you have much bigger problems.
I mean you no malice. just trying to help.
For real. Don't kick me out of school for being helpful. That would be unproductive.
Plus, maybe I'd be a good candidate for your cybersec track. haven't decided yet.
-- a guy who isn't very good at this and didn't have to be
have a nice day <3
oh, and I fixed the clock. you're welcome.2
Email from Client:
Hi, we'd like this and that done to our website. I know you aren't finished building it yet but I believe we can change what we agreed upon.
Let me see what I can do, I'll try squeeze in some of those changes but the bigger ones I'll have to check with the boss.
Yes, we can do those changes at an additional cost, quote them $1000 (example)
Me to client:
Hi there, yes we can do that but we have to charge $1000 for those additional changes that weren't initially agreed upon, and we'll need an extra week on the deadline.
Oh no no no... I know how this works. If I wanted to do this myself I would. You will do the work and get it finished in time, and I will only pay you $200 for it. I don't like being scolded for money.
Me and Boss: Yeah.... this isn't working out. Please find a new company to deal with.
Conclusion, this client was always giving us problems and telling us how we should be charging and how we should be doing our jobs. It was so satisfying to just them let go.4
Guys, we need talk raw performance for a second.
Fair disclaimer - if you are for some reason intel worker, you may feel offended.
I have one fucking question.
What's the point of fucking ultra-low-power-extreme-potato CPUs like intel atoms?
Okay, okay. Power usage. Sure. So that's one.
Now tell me, why in the fucking world anyone would prefer to wait 5-10 times more for same action to happen while indeed consuming also 5-10 times less power?
Can't you just tune down "big" core and call it a day? It would be around.. a fuckton faster. I have my i7-7820HK cpu and if I dial it back to 1.2Ghz my WINDOWS with around lot of background tasks machine works fucking faster than atom-powered freaking LUBUNTU that has only firefox open.
tested i7-7820hk vs atom-x5-z8350.
opening new tab and navigating to google took on my i7 machine a under 1 second, and atom took almost 1.5 second. While having higher clock (turbo boost)
Guys, 7820hk dialled down to 1.2 ghz; 0.81v
I felt everything was lagging. but OS was much more responsive than atom machine...
What the fuck, Intel. It's pointless. I think I'm not only one who would gladly pay a little bit more for such difference.
i7 had clear disadvantages here, linux vs windows, clear background vs quite a few processes in background, and it had higher f***ng clock speed.
Intel atom processors use less power but waste a lot of time, while a little bit more power used on bigger cpu would complete task faster, thus atoms are just plain pointless garbage.
Tested in frustration at work, apparently they bought 3 craptops for presentations or some shit like that and they have mental problems becouse cheapest shit on market is more shitty than they anticipated ;-;
fucking seriously ;-;16
Recently installed SonarQube and its been amazing to see the level of code quality (or lack thereof)
Some projects have 30 to 60 days of technical debt and I found a few files with a cyclomatic complexity over 100. I’m still learning what the “good” numbers should be.
Yesterday, couple of devs were very proud they were going to start reducing the numbers, they started with one of my solutions that had 5 minutes of technical debt. Yes, 5 minutes.
DevA: “OMG…look at this…it has a cyclomatic complexity of 11…that’s terrible. I thought we were supposed to be professional developers.”
DevB: “And take a look at this, he used the double-slash instead of a triple slash for comments. How does any of code even compile?!”
Me: “Maybe we should tweak some of those SonarQube rules so they make more sense to our code base. We’re never going to use unicode, so all those string culture warnings should go away and code comment formatting? Who cares? Be happy we have comments. I think we should also focus on the bigger fish in that pond. The CRM project is one of the biggest and has a lot of improvement opportunities.”
DevB: “There you go again, don’t bring me problems, bring me solutions..ha ha”
DevA: “Yea, no kidding …hey…did you see the logger? OMG…the whole class is over 25 lines…we gotta split that up into smaller projects so it’s more manageable.”
It’s a good thing our revenue stream isn’t dependent on people getting work done.2
I know I’ll get mixed views for this one...
So I’ll state my claim. I agree with the philosophy of uncle bob, I also feel like he is the high level language - older version of myself personality wise.. (when I learned about uncle bob I was like this guy is just like me but not low level haha).
Anyway.. I don’t agree with everything because I think he thinks or atleast I get the vibe he thinks everything can be solved by OOP, and high level languages. This is probably where Bob and I disagree. Personally I don’t touch ruby, python and java and “those” with a 10 foot pole.
Does he make valid arguments, yes, is agile the solve all solution no.. but agile ideas do come natural and respond faster the feedback loop of product development is much smaller and the managers and clients and customers can “see things” sooner than purly waterfall.. I mean agile is the natural approach of disciplined engineers....waterfall is and was developed because the market was flooded with undisciplined engineers and continues to flood, agile is great for them but only if they are skilled in what they are doing and see the bigger picture of the forest thru the trees.. which is the entire point of waterfall, to see the forest.. the end goal... now I’m not saying agile you only see a branch of a single tree of the forest.. but too often young engineers, and beginners jump on agile because it’s “trendy” or “everyone’s doing it” or whatever the fuck reason. The point is they do it but only focus on the immediate use case, needs and deliverables due next week.
What’s wrong with that?? Well an undisciplined engineer doing agile (no I’m not talking damn scrum shit and all that marketing bullshit).. pure true agile.
They will write code for the need due next week, but they won’t realize that hmm I will have the need 3 months from now for some feature that needs to connect to this, so I better design this code with that future feature in mind...
The disciplined engineer would do that. That is why waterfall exists so ideally the big picture is painted before hand.
The undisciplined engineer will then be frustrated in the future when he has to act like the cool aid man thru the hard pre mature architectural boundaries he created and now needs links or connections that are now needed.
Does moving to agile fix that hell no.. because the undisciplined engineer is still undisciplined.
One could argue the project manager or scrum secretary... (yes scrum secretary I said that right).. is suppose to organize and create and order the features with the future in mind etc...
Bullshit ..soo basically your saying the scrum kid is suppose to be the disciplined engineer to have foresight into realizing future features and making requirements and task now that cover those things? No!
1 scrum bitch focuses too much on pleasing “stake holders” especially taken literally in start ups where the non technical idiots are too involved with the engineering team and the scrum bastard tries to ass kiss and get everything organized and tasks working so the non technical person can see pretty things work.
Scrum master is a gate keeper and is not needed and actually hinders the whole process of making a undisciplined engineer into a disciplined engineer, makes the undisciplined engineer into a “forever” code grunt... filling weekly orders of story points unable to see the forest until it’s over because the forest isn’t show to the grunt only the scrum keeper knows the big picture..... this is bad this is why waterfall is needed.
Waterfall has its own problems, But that’s another story for another day..
ANYWAY... soooo where were we ....
Is it a good book, yes.. does uncle bobs personality show thru the book .. yes lol.
If you know uncle bob you will understand what I just did with this post lol. I had to tangent ( at least mine was related to the topic) ...
I agree with the principles of the book, I don’t agree with the extreme view point. It’s like religion there’s the modest folks and then there are the extremists. Well he’s the preacher of the cult and he’s on the extreme side.. but that doesn’t mean he’s wrong.. many things he nails... he just hits the nail thru the wall just a bit.
OOP languages are not the solution... high level languages do not solve everything.. pininciples and concepts can be used across the board and prove valuable.. just don’t hold everything up like the 10 commandments of which you cannot deviate from.. that’s the difference here I think..
Good book, just don’t take it as the Bible as a beginner, actually infact DONT read this book as a beginner. Wait a bit learn then reflect by reading this.15