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Search - "you read them differently"
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Okay, story time.
Back during 2016, I decided to do a little experiment to test the viability of multithreading in a JavaScript server stack, and I'm not talking about the Node.js way of queuing I/O on background threads, or about WebWorkers that box and convert your arguments to JSON and back during a simple call across two JS contexts.
I'm talking about JavaScript code running concurrently on all cores. I'm talking about replacing the god-awful single-threaded event loop of ECMAScript – the biggest bottleneck in software history – with an honest-to-god, lock-free thread-pool scheduler that executes JS code in parallel, on all cores.
I'm talking about concurrent access to shared mutable state – a big, rightfully-hated mess when done badly – in JavaScript.
This rant is about the many mistakes I made at the time, specifically the biggest – but not the first – of which: publishing some preliminary results very early on.
Every time I showed my work to a JavaScript developer, I'd get negative feedback. Like, unjustified hatred and immediate denial, or outright rejection of the entire concept. Some were even adamantly trying to discourage me from this project.
So I posted a sarcastic question to the Software Engineering Stack Exchange, which was originally worded differently to reflect my frustration, but was later edited by mods to be more serious.
You can see the responses for yourself here: https://goo.gl/poHKpK
Most of the serious answers were along the lines of "multithreading is hard". The top voted response started with this statement: "1) Multithreading is extremely hard, and unfortunately the way you've presented this idea so far implies you're severely underestimating how hard it is."
While I'll admit that my presentation was initially lacking, I later made an entire page to explain the synchronisation mechanism in place, and you can read more about it here, if you're interested:
http://nexusjs.com/architecture/
But what really shocked me was that I had never understood the mindset that all the naysayers adopted until I read that response.
Because the bottom-line of that entire response is an argument: an argument against change.
The average JavaScript developer doesn't want a multithreaded server platform for JavaScript because it means a change of the status quo.
And this is exactly why I started this project. I wanted a highly performant JavaScript platform for servers that's more suitable for real-time applications like transcoding, video streaming, and machine learning.
Nexus does not and will not hold your hand. It will not repeat Node's mistakes and give you nice ways to shoot yourself in the foot later, like `process.on('uncaughtException', ...)` for a catch-all global error handling solution.
No, an uncaught exception will be dealt with like any other self-respecting language: by not ignoring the problem and pretending it doesn't exist. If you write bad code, your program will crash, and you can't rectify a bug in your code by ignoring its presence entirely and using duct tape to scrape something together.
Back on the topic of multithreading, though. Multithreading is known to be hard, that's true. But how do you deal with a difficult solution? You simplify it and break it down, not just disregard it completely; because multithreading has its great advantages, too.
Like, how about we talk performance?
How about distributed algorithms that don't waste 40% of their computing power on agent communication and pointless overhead (like the serialisation/deserialisation of messages across the execution boundary for every single call)?
How about vertical scaling without forking the entire address space (and thus multiplying your application's memory consumption by the number of cores you wish to use)?
How about utilising logical CPUs to the fullest extent, and allowing them to execute JavaScript? Something that isn't even possible with the current model implemented by Node?
Some will say that the performance gains aren't worth the risk. That the possibility of race conditions and deadlocks aren't worth it.
That's the point of cooperative multithreading. It is a way to smartly work around these issues.
If you use promises, they will execute in parallel, to the best of the scheduler's abilities, and if you chain them then they will run consecutively as planned according to their dependency graph.
If your code doesn't access global variables or shared closure variables, or your promises only deal with their provided inputs without side-effects, then no contention will *ever* occur.
If you only read and never modify globals, no contention will ever occur.
Are you seeing the same trend I'm seeing?
Good JavaScript programming practices miraculously coincide with the best practices of thread-safety.
When someone says we shouldn't use multithreading because it's hard, do you know what I like to say to that?
"To multithread, you need a pair."18 -
So I can see everything thinks CS should be taught differently this week.
Based on all of the ways we could change it, something no one seems to be mentioning much is security.
Everyone has many ways of learning logical processors and understanding how they work with programming, but for every line of code taught, read or otherwise learnt you should also learn, be taught how to make it less vulnerable (as nothing is invulnerable on the internet)
Every language has its exploits and pitfalls and ways of overflowing but how you handle these issues or prevent them occurring should be more important than syntaxually correct code. The tools today are 100000x better then when I started with notepad.exe, CMD and Netscape.
Also CS shouldn’t be focused on tools and languages as such, seeing as new versions and ideals come out quicker then CS courses change, but should be more focused on the means of coming to logical decisions and always questioning why or how something is the way it is, and how to improve it.
Tl;dr
Just my two cents. -
First rant from my new job.
I got a position as backend-dev in a startup and for now i'm learning angular. Yes, you read that correctly, because the frontend-team is short-staffed i decided to switch teams. We are 3 people and neither one has sufficient angular-experience (the framework was a management decision).
First of all i got confused because we use slack and trello but the frontend-lead decided to do some stuff via google-spreadsheet too. Then we didn't have any code in our repository until yesterday. I tried to check out the repository after that, did an npm-install but when running ng serve i got an error "css-file not found". It turns out you had to download some files from the official website and put them in the unversioned node_modules directory. It was the teamlead's decision to do so and me and my coworker got really annoyed when we tried to set up everything on our end. But that's not all, yesterday the other dev's merged their first versions of the project. But not via git, that is way to mainstream. The coworker had to upload his code into the cloud and the teamlead copied the files into the project folder.
Aside from that the code already isn't the best, some things should be done differently imo and we have credentials in the code (not in some separate files, but in an if-else-clause that checks node.env.production).
We'll have a discussion about this tomorrow, let's hope things can be straightened out.3 -
So just babbling my shit down here.
(Tldr : i am a crazy guy who followed my half slept brain, went onto a stage , gave some kind of motivating , stammering talk to a large group of professional strangers, enjoyed that day with a red embarrassed face and just got my first pic of me speaking on stage and that is so awesome !)
Last Saturday i went to a gdg meetup and i embarrassed the hell out of me.
I went there with just 2 hours of sleep from the previous night.
After a few talks there comes a guy who is taking some time to install is setup and the host calls for lightning round session ( ie he asks if anyone from the audience would like to share something about their product or something).
I am a fucking nutt guy. I can explain something to you nicely in a hacky way as long as i have done enough work on that and you speak my native language.
But giving a talk on English stage, hell no! I stammer, mix hindi with English and start speaking werd shit.. And that's what happened.
I don't know what went into me but as some guy went to the stage and talked for 2 mins, i was like yeah i want to do that too. So in next turn when he asked for a show of hands, i raised mine and fucking went to stage!
I forgot that if you go on stage you should have something to talk to . But the moment i was on stage, i was like... "Nope, we will do this differently".
I had been working on a video ads module from the last week which could be easily explained in 2 mins. But i felt like giving a non techy talk instead.
It went something like this: i introduced myself with my experience details ( who gives experience details on stage !?!) Then host said to speak loudly and i went like "Bharat mata ki jai!"( Victory to mother india (wtf!?😆) .
Then started talking about how the developers feel disheartened when searching on internet where the resources are scattered . And the solution i told them was :"don't be disheartened. You will eventually find it (like wow dude wtf, as if they didn't knew that) . Look on the youtube and other resources " and then went full on explaining/marketing about some online tutor who gives advice/consultancy via a subscription based payment ( tbf that guy really helped solve a lot of my doubts, he has written books on Android dev and is the top so answerer for Android).
Then i went on sharing my thoughts live on that fuckin stage ! ( Live because i usually post my thoughts here on devrant before discussing them out with real people, you guys are my safe space) but there i discussed my thoughts on libraries!
I have this believe that Android devs these days are having lesser knowledge of the system because we have all the libraries and templates available to us. But when we have to customize stuff, we need to go deep into docs and source classes and find ourselves in trouble there. So i kind of said this out loud and that we should try to read more the code and implement stuff ourselves instead of using the library 😅🙈)
I was feeling so fucking embarrassing after that all stuff! It was so full of stammering , broken English and worst attempt at motivation. At that time i was regretting this and about to burst cry and run away, but somehow i gathered my self, got my mood back to the event games and talks, later went to the organizers and apologized(and they were very nice and didn't cared about it), and overall enjoyed my weirdest day!
When i came home, my mom gave me a little more confidence about it. Now i think i shouldn't be that much instinctive. Next day i went hack to work and everything got normal.
But Yesterday i found a link to the public repository of the photos. Ohh fuck, someone had took my image! and that was too in full hd!!! 🙈🙈🙈😅😆😆 Oh mann I can't stop looking at that cool stage speaker image, i love it ! I, the shy-est and the most uncool awkward person , present on the stage with a mike, oof , i think i lived my dream !
I hope i could get enough confidence and speaking skills to take a real stage talk next time ( and maybe enough interesting talks and confidence to talk with girls of our office, ¯\_(ツ)_/¯ )5 -
Over the summer I was recruited to be a supplement instructor for a data structures course. As a result of that I was asked (separately by the professor) to be a grader for the course. Because of pay limitations I've mostly been grading homework project assignments. In any case, it's a great job to get my foot into the department and get recognized.
Over the course of the semester I've had this one person, OSX, named after their operating system of choice, who has been giving me awkward submissions. On the first assignment they asked the professor for extra time for some reason or the other, and that's perfectly fine.
So I finally receive OSX's submission, and it's a .py file as per course of the course. So I pop up a terminal in the working directory and type "python OSX_hw1.py". Get some error spit out about the file not being the right encoding. I know that I can tell python to read it in a different encoding, so I open it up in a text editor. To my surprise it's totally not a text file, but rather a .zip file!
I've seen weirder things done before, so no big deal. I rename the file extension, and open it up to extract the files when I see that there's no python files. "Okay, what's goin on here OSX..." I think to myself.
Poking around in the files it appears to be some sort of meta-data. To what, I had no clue, but what I did find was picture files containing what appeared to be some auto-generated screenshots of incomplete code. Since I'm one to give people the benefit of doubt even when they've long exhausted other peoples', I thought that it must be some fluke, and emailed OSX along with the professor detailing my issue.
I got back a rather standard reply, one of which was so un-notable I could not remember it if my life depended on it. However, that also meant I didn't have to worry about that anymore. Which when you're juggling 50 bazillion things is quite a relief. Tragically, this relief was short lived with the introduction of assignment 2.
Assignment 2 comes around, and I get the same type of submission from OSX. At this time I also notice that all their submissions are *very* close to the due time of 11:59pm (which I don't care about as long as it's in before people start waking up the next morning). I email OSX and the professor again, and receive a similar response. I also get an email from OSX worried about points being deducted. I reply, "No issue. You know what's wrong. Go and submit the right file on $CentralGradingCenter. Just submit over your old assignment".
To my frustration OSX claimed to not know how to do this. I write up a quick response explaining the process, and email it. In response OSX then asks if I can show them if they comes to my supplemental lesson. I tell OSX that if they are the only person, sure, otherwise no because it would not be a fair use of time to the other students.
OSX ends up showing up before anyone else, so I guide them through the process. It's pretty easy, so I'm surprised that they were having issues. Another person then shows up, so I go through relevant material and ask them if they have any questions about recent material in class. That said, afterwards OSX was being somewhat awkward and pushy trying to shake my hand a lot to the point of making me uncomfortable and telling them that there's no reason to be so formal.
Despite that chat, I still did not see a resubmission of either of those two assignments, and assignment 3 began to show it's head. Obviously, this time, as one might expect after all those conversations, I get another broken submission in the same format. Finally pissed off, I document exactly how everything looks on my end, how the file fails to run, how it's actually a zip file, etc, all with screenshots. That then gets emailed to the professor and OSX.
In response, I get an email from OSX panicking asking me how to submit it right, etc, etc. However, they also removed the professor from the CC field. In response I state that I do not know how to use whatever editor they are using, and that they should refer to the documentation in order to get a proper runnable file. I also re-CC the professor, making sure OSX's email to me is included in my reply.
OSX then shows up for one of my lessons, and since no one had shown up yet, I reiterate through what I had sent in the email. OSX's response was astonished that they could ever screw up that bad, but also admits that they had yet to install python(!!!). Obviously, the next thing that comes from my mouth is asking OSX how they write their code. Their response was that they use a website that lets them run python code.
At this point I'm honestly baffled and explain that a lot of websites like those can have limitations which might make code run differently then it should (maybe it's a simple interpreter written on JavaScript, or maybe it is real python, but how are you supposed to do file I/O?) .
After that I finally get a submission for assignment 1! -
TLDR; WINE+me=system binaries gone. (HOWTHEFUCKDIDIDOTHAT) Kernel panic. Core program files gone. I'll never have it fixed right. Will backup, then install fedora tomorrow.
I really like games and I'm sure there are many of you who can relate. Imagine my perpetual pain, being on the job hunt, no money, and only my Linux laptop for games. (It's only Linux because of a stupid accident and a missing windows installation disk, partly explained in a previous rant). My stack of games my dad and I have played over the years, going back to populous and before, looked light enough for my laptop to run them smoothly. I wanted to see if I could get one to work. My eyes settled on simcity 4 and Sid Meier's railroad tycoon, 13 and 10 years old, respectively. Simcity didn't work as many times as I tried following online instructions. Disk 1 went fine. Disk 2 showed up as Disk 1. Didn't think much of it, so long as the computer could read the contents. I downloaded playonlinux as that could apparently do the complex stuff for me. Didn't work. I gave up with it after an hour and a half.
Next was railroads. Put the disk in aaaand it says SimCity disk 1 is in the tray. Fuck right off, thank you very much. Eject, put back, reject, eject, fiddle in wineconfig, eject, more of this, and voilà it read as railroads :) Ran autoplay.exe with wine, followed instructions, installed it, and it worked! Chose single player, then the map and setting, pressed play, and all the models of the buildings and track were floating in the air over a green plane, the UI is weird and the map doesn't represent anything but trains. All the fkin land is gone, laying track is gonna be a ballache.
I quit it and decided bedtime.
Ctrl+alt+t
sudo shutdown -h now
shutdown not found.
sudo reboot
reboot not found
Que?
Nope, I don't like this.
Force choked my laptop by the power button. Turned it on again.
Lines of text appear.
Saw a phrase I've only ever seen on Mr Robot.
Kernel panic.
Nooooo thanks, not today, this is fiction.
I turned it off and on. Same thing. I read the logs and some init files couldn't be found. I got the memory stick I used to install mint in the first place and booted from that. I checked the difference between my stick's bin and sbin and the laptop's, and it was indeed missing binaries. Fuck knows what else has happened, I only wanted to play games but now I don't know what is or isn't in my computer. How can I trust what's on it now?
I go downstairs and tell my dad. He says something about rpm, but this is Linux so it won't work. I learn that binaries can be copied over, so maybe I can fix it.
Go upstairs again, decide not to fix it. Fedora is light, has a good rep for security, and is even more difficult to get games on, which is my vice. There are more reasons, but the overriding one is that I'm spooked by the fact that something I did went into and removed system binaries, maybe even altered others, so I want something I'm less likely to do that with. Also my fellow cs students used to hate on it but my dad uses and recommended it so I want to try it.
Also, seriously, fuck wine/PlayOnLinux/my inability to follow instructions(?)/whatever demons haunt me. Take your pick, at least one if not more is to blame and I can't tell which, but it's prooooobably the third one.
It's going to be 16 hours before I touch my laptop again, comments before I backup then install fedora are welcome, especially if they persuade me to do differently.
P.S thanks for reading this mind dump of a post, I'm writing while it's fresh but I'm tired AF.6 -
I'm shitting there hammering out some code butchering some real problems when I suddenly realise I'm surrounded. I look around and yes it's the bloody committee.
The committee is what I call the rest of the department and it is dominated by the old guard which comprises of the programmers that have been around for longer.
None of the old guard can program particularly well but because they had been around the longest they'd all grown senior. The committee had free reign but anyone else doing anything differently has to get approval from the committee.
The only way to code otherwise was to copy and paste existing code then to primarily rename things. If anyone did anything that hadn't been seen before then it would have to be approved by the committee. Individual action was not permitted unless you were old guard.
I swept my headphones away expecting it to be something unimportant. It was.
First things first they announce. We're going to add extraneous commas to the last element of all possible lists separated by comma including parameters or so they say. Ask but why so I do.
Because the language now supports it. They added support for it so it must be the right way someone proclaimed. Does it? I didn't realise we were waiting for it. Why do we want it though?
Didn't you hear? It's all over the blogosphere. It massively improves merge requests. But how I ask?
Five minutes later I grow tired of the chin stroking, elbow harnessing, slanted gazes into the yonder and occasionally hearing maybe its because and ask if they mean when you for example add an element the last element registers as changed from adding a comma. Turns out that's all it is.
How often do we see that tiny distraction and isn't it pointless to make the code ugly just for a tiny transient reduction in diff noise I ask. Everyone's stumped. This went on and on and got worse and worse. But it makes moving things around easy half of them say in unison like the bunch of slobs that they are. I mean really. It doesn't make expanding and contracting statements from multiline to single line easy and it's such a stupid thing. Is that all they do all day? Move multi-line method parameters up and down all day? If their coding conventions weren't totally whack they wouldn't have so many multiline method prototypes with stupid amounts of parameters with stupidly long types and names. They all use the same smart IDE which can also surely handle fixing the last comma and why is that even a concern given all the other outrageously verbose and excessive conventions for readability?
But you know what, who cares, fine, whatever. Lets put commas all over the shop and then we can all go to the pub and woo the ladies with how cool and trendy we are up to date with all the latest trends and fashions then we go home with ten babes hanging off each arm and get so laid we have to take a sick day the following to go to the STD clinic. Make way for we are conformists.
But then someone had to do it. They had to bring up PSR. Yes, another braindead committee that produces stupid decisions. Should brackets be same line or next line, I know, lets do both they decided. Now we have to do PSR and aren't allowed to use sensible conventions.
But why, I ask after explaining it's actually quite useful as a set of documents we can plagiarise as a starting point but then modify but no, we have to do exactly what PSR says. We're all too stupid apparently you see. Apparently we're not on their level. We're mere mortals. The reason or so I'm told, is so that anyone can come in and is they know PSR coding styles be able to read and write the code. That's not how it works. If you can't adjust to a different style, a more consistent style, that's not massively bizarre or atypical but rather with only minor differences from standard styles, you're useless. That's not even an argument, it's a confession that you've got a lump of coal where your brain's supposed to be.
Through all of this I don't really care because I long ago just made my own code generators or transpilers that work two ways and switch things between my shit and their shit but share my wisdom anyway because I'm a greedy scumbag like that.
Where the shit really hit the fan is that I pointed out that PSR style guide doesn't answer all questions nor covers all cases so what do we do then. If it's not in PSR? Then we're fucked.4 -
I’m at my last hair with this job; I report to 3 (two mid-level; one senior) project managers. The senior PM decided not to fix up the company’s jira and has encouraged “I’ll tell you what to do by mail, text, call. Even outside office productivity apps,” and I didn’t mind it but it’s become unbearable. Each of these PMs manage at least one client that I have to work with — in essence, any given day I’m reporting to these PMs, for multiple tasks for at least 2 clients, especially for MVPs. One of the mid-level PM (let’s call her T) has taken it upon herself to make me look bad. I’m the only developer at the company; when I joined the only two developers had already left a week prior, so I was their replacement (no one mentioned this to me during any of the 3 interviews).
T reports to the senior PM and senior PM, who is friends with T from outside the job, would also give T instructions to provide me in regard to Senior PM’s clients. To made this clearer, Senior PM’s client would request for a feature or whatever, Senior PM would prepare a lousy document and send to T to send to me, just so, T can have things to say in standup daily like “I reached out to the Dev to fix xyz’s something something,” so this means I have had to tolerate T twice as much as the other PMs. (She’s new to the job, a week after me — Senior PM brought her in — they both do not have technical experience relating to work tools for programming but I can say Senior PM knows how to manage clients; talk shop).
Anyhow, T gets off by making me look bad and occasionally would “pity” me for my workload but almost in a patronizing way. T would say I don’t try to reply messages in 5 minutes time after I receive them (T sends these messages on WhatsApp and not slack, which is open during work hours). T would say, “I can’t quite get a read of this Engineer — you(me) are wired differently,” whenever one of T’s requests is yet to be completed because I’m handling other requests including T’s, even though T had marked the completed ones as Done on her excel sheet (no jira).
In all of this, I still have to help her create slides for our clients on all completed tasks for the week/month, as senior PM would tell me because “T is new to this.” We’ve been at the job for roughly 4 months now.
I have helped recruit a new developer, someone the company recommended — I was only told to go through their résumé and respond if they are a good fit and I helped with the interview task (a take-home project — I requested that the applicant be compensated as it’s somewhat a dense project and would take their time — HR refused). The company agreed with the developer’s choice of full WFH but would have me come in twice a week, because “we have plenty live clients so we need to have you here to ensure every requests are handled,” as if I don’t handle requests on my WFH days.
Yesterday, T tried making me look bad, and I asked, “why is it that you like making me look bad?” in front of HR and T smiled. HR didn’t say anything (T is friends with HR and T would occasionally spill nonsense about me to HR, in fact they sit together to gossip and their noise would always crawl to my corner; they both don’t do much. T would sleep off during work hours and not get a word for it — the first time I took a 10 minutes break to relax, T said, “you look too comfortable. I don’t like that,” and HR laughed at T’s comment. While it was somewhat a joke, there was seriousness attached to it). As soon as HR left, I asked T again, “why is it that most of the things you say are stupid?”, T took offense and went to her gossip crew of 4, telling them what I had just said, then T informed senior PM (which I’m fine with as it’s ideal to report me to her superior in any circumstance). Then I told those who cared to listen, T’s fellow gossipers, that I only said that in response to T’s remark to me in front of them, a while back, that I talked like I’m high on drugs.
I’ve lost my mind compiling this and it feels like I’m going off track, I’m just pissed.
I loved the work challenges as I’ve had to take on new responsibilities and projects, even outside my programming language, but I’m looking for a job elsewhere. My salary doesn’t not reflect my contributions and my mental health is not looking good to maintain this work style. I recall taking a day off as I was feeling down and had anxiety towards work, only to find out HR showed T my request mail and they were laughing at me the next day I showed up, “everybody’s mental health is bad too but we still show up,” and I responded to T, “maybe you ought to take a break too”.3