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Search - "garbage collection"
"If Java had true garbage collection, most programs would delete themselves upon execution." - Robert Sewell31
Relatives: You're a computer guy, right, what are you working on these days?
Me: *should I bother explaining, should I not* Oh, just some stuff.
R: Oh come on, tell us, how difficult can it be?
M: *sigh* I'm working on a custom garbage collector for-
They're now under the impression that I'm involved in collecting rubbish from bins. Sigh. My hair doesn't help here, either, lol (I have one of those tangled, unruly mops of hair)
This will take time to explain.21
Things I wish I could tell my 18 year old self.
1) Accept you will make mistakes.
2) Truly learn the language you are using.
3) Write idiomatic code for the language you are using.
4) Be upfront about not knowing something.
5) Don't let not knowing something stop you from learning it.
6) None of us knew X until we learned it.
7) Understand your strengths and weaknesses as a developer, play to them.
8) Be willing to try new things.
9) X language isn't ALWAYS the best choice, X paradigm isn't ALWAYS the best choice. Choose wisely.
10) You won't know everything, but you might know more than others.
11) Your ideas and ego don't matter more than ensuring the product works.
12) "Perfection is the enemy of the good [enough]" - Voltaire
13) "Perfection is not achieved when there's nothing more to add, but when there's nothing more to remove." - Einstein.
14) Conflicts happen, deal with it.
15) Develop a toolset and really learn them.
16) Try new tools, they may prove better than what you were using.
17) Don't manage your own memory unless you absolutely have to, you are probably not smarter than the collective intelligence of the team that built the various garbage collection methods.
18) People can be dicks, especially online.
19) If you are new and people are being dicks to you, did you skip past the irc message about etiquette? If you did, you're the dick in this situation.
20) It can be tough, but it is fun, so have fun!6
Dev: I’m taking a vacation next week
Manager: Good you need a break! I’ve put together a list of tickets for you to action during vacation since you’ll mostly be free during that time
Dev: Do you know what vacation means?
Manager: Well I work during *my* vacation
Dev: You write non-answers to emails and interrupt devs with status questions that are easily answered by a single glance at the kanban board. Also, you’ve just assigned a month’s worth of storyboard points to me on my week long vacation. We’d get more work done if you didn’t “work” during your vacation.
Manager: Well it all needs to get done! It’s the only way we can catch up and get ahead of schedule.
Dev: Why do you exist again?16
Let's take bets on the root cause of the S3 outage!
I'm guessing a bad deploy of a sever-side Java application with a garbage collection problem.6
Me and my girlfriend's pillow talk about memory leaks
Me: **... So garbage collection is a means to stopping a memory leak from occuring
Gf: what 's a memory leak ?
Me: a memory leak is like when you want a pizza, and the guy gives you pizza. But you don't eat the pizza and you ask for another pizza. You keep doing this repeatedly. Until the pizza guy realizes what you're doing and decides to kill you. He then takes back all his pizzas
Gf: why would you do that though?
Me: Lazy ass programmers who don't clean up after themselves.6
Chuck Norris can write Java without wearing glasses. He can C#.
Chuck Norris can compile C++ with just a word editor and K&R.
Chuck Norris can read the comment you almost put in on line 63 (it would have been very helpful.)
Chuck Norris can optimize programs in binary.
Chuck Norris does garbage collection with his mind.6
Put this in your build script for compile-time garbage collection:
find / -name "*.java" -type f -delete5
If java had real garbage collection then most programs would delete themself immediately upon running.2
Gunnery Sgt. Hartman:
What do you code, anyway?
SIR, JAVA, SIR!
Gunnery Sgt. Hartman:
JAVA? Holy dogshit! Only steers and queers code in Java!! And you don't much look like a steer to me so that kind of narrows it down. Do you suck dick?
SIR, NO, SIR!
Gunnery Sgt. Hartman:
I BET YOU'RE THE KIND OF GUY WHO'D WRITE LEGACY CODE AND NOT HAVE THE COMMON COURTESY TO WRITE ANY COMMENTS.8
Just got pitched another one of those “billion dollar” app ideas at work....
An app that stores app ideas
You don’t need an app for that, you can write your app ideas on a napkin and store them in the trash where they belong.3
Don't talk to me I'm a programmer!
First, I'll kill you
make you leave all your children
Then I'll chop off your HEAD
now you're a zombie
I'll thread all your limbs back together
you can never REST
because I'm a master of all slaves
this is a test
And if I'm finally done with you
I'll leave you for garbage collection
Don't talk to me2
devRant is awesome, but Disney also manages to light-up my day.
This is how Wall-E became a beloved member of our team, and helped me put a smile on my face throughout a very frustrating project.
It all started in a company, not so far far away from here, where management decided to open up development to a wider audience in the organization. Instead of continuing the good-old ping-pong between Business and IT...
'not meeting my expectations' - 'not stated in project requirements'
'stuff's not working - 'business is constantly misusing'
'why are they so difficult' - 'why don't they know what they really want'
'Ping, pong, plok... (business loses point) ping, pong'
... the company aimed to increase collaboration between the 2 worlds, and make development more agile.
The close collaboration on development projects is a journey of falling and getting back up again. Which can be energy draining, but to be honest there is also a lot of positive exposure to our team now.
The relevant part for this story is that de incentive of business teams throughout these projects was mainly to deliver 'something' that 'worked'. Where our team was also very keen on delivering functionality that is stable, scalable, properly documented etc. etc.
We managed to get the fundamentals in place, but because the whole idea was to be more agile or less strict throughout the process, we could not safeguard all best-practices were adhered to during each phase of a project. The ratio Business/IT was simply out of balance to control everything, and the whole idea was to go for a shorter development lifecycle.
One thing for sure, we went a lot faster from design through development to deployment, high-fives followed and everybody was happy (for some time).
Well almost everybody, because we knew our responsibility would not end after the collection of credits at deployment, but that an ongoing cycle of maintenance would follow. As expected, after the celebrations also complaints, new requirements and support requests on bug fixes were incoming.
Not too enthusiastic about constantly patching these projects, I proposed to halt new development and to initiate a proper cleaning of all these projects. With the image in mind of a small enthusiastic fellow, dedicated to clean a garbage-strewn wasteland for humanity, I deemed "Wall-E" a very suited project name. With Wall-E on board, focus for the next period was on completely restructuring these projects to make sure all could be properly maintained for the future.
I knew I was in for some support, so I fetched some cool wall papers to kick-start each day with a fresh set of Wall-E's on my monitors. Subsequently I created a Project Wall-E status report, included Wall-E in team-meetings and before I knew it Wall-E was the most frequently mentioned member of the team. I could not stop to chuckle when mails started to fly on whether "Wall-E completed project A" or if we could discuss "Wall-E's status next report-out". I am really happy we put in the effort with the whole team to properly deploy all functionality. Not only the project became a success, also the idea of associating frustrating activities with a beloved digital buddy landed well in our company. A colleagues already kickstarted 'project Doraemon', which is triggering a lot of fun content. Hope it may give you some inspiration, or at least motivate you to watch Wall-E!
PS: I have been enjoying the posts, valuable learnings and fun experiences for some time now. Decided to also share a bit from my side, here goes my first rant!3
The worst (best) pun I've seen in a while.
I hope it was intentional. Probably not. But one can hope.
I had spent the last year working on a online store power by woocommerce with over 100k products from various suppliers. This online store utilized a custom API that would take the various formats that suppliers offer their inventory in and made them consistent. Now everything was going swimmingly initially, but then I began adding more and more products using a plug-in called WP all import. I reached around 100k products and the site would take up to an entire minute to load sometimes timing out. I got desperate so I installed several caching plugins, but to no avail this did not help me. The site was originally only supposed to take three to four months but ended up taking an entire year. Then, just yesterday I found out what went wrong and why this woocommerce website with all of these optimizations was still taking anywhere from 60 to 90 seconds to load, or just timing out entirely. I had initially thought that I needed a beefier server so I moved it to a high CPU digitalocean VM. While this did help a little bit, the site was still very slow and now I had very high CPU usage RAM usage and high disk IO. I was seriously stumped the Apache process was using a high amount of CPU and IO along with MYSQL as well. It wasn't until I started digging deeper into the database that I actually found out what the issue was. As I was loading the site I would run 'show process list' in the SQL terminal, I began to notice a very significant load time for one of the tables, so I went to go and check it out. What I did was I ran a select all query on that particular table just to see how full it was and SQL returned a error saying that I had exceeded the maximum packet size. So I was like okay what the fuck...
So I exited my SQL and re-entered it this time with a higher packet size. I ran a query that would count how many rows were in this particular table and the number came out to being in the millions. I was surprised, and what's worse is that this table belong to a plugin that I had attempted to use early in the development process to cache the site. The plugin was deactivated but apparently it had left PHP files within the wp content directory outside of the actual plugin directory, so it's still executing scripts even though the plugin itself was disabled. Basically every time I would change anything on the site, it would recache the whole thing, and it didn't delete any old records. So 100k+ products caching on saves with no garbage collection... You do the math, it's gonna be a heavy ass database. Not only that but it was serialized data, so when it did pull this metric shit ton of spaghetti from the database, PHP then had to deserialize it. Hence the high ass CPU load. I had caching enabled on the MySQL end of things so that ate the ram. I was really desperate to get this thing running.
Honest to God the main reason why this website took so long was because the load times made it miserable to work on. I just thought that the hardware that I had the site on was inadequate. I had initially started the development on a small Linux VM which apparently wasn't enough, which is why I moved it to digitalocean which also seemed to not be enough, so from there I moved to a dedicated server which still didn't seem to be enough. I was probably a few more 60-second wait times or timeouts from recommending a server cluster to my client who I know would not be willing to purchase it. The client who I promised this site to have completed in 3 months and has waited a year. Seriously, I would tell people the struggles that I would go through with this particular site and they would just tell me to just drop the site; just take the money, just take the loss. I refused to, this was really the only thing that was kicking my ass. I present myself as this high-and-mighty developer like I'm just really good at what I do but then I have this WordPress site that's just beating the shit out of me for a year. It was a very big learning experience and it was also very humbling as well, it made me realize that I really don't know as much as I think I might. It was evidence that there is still so much more to learn out there, I did learn a lot from that experience especially about optimizing websites the different types of methods to do that particular lonely on the server side and I'll be able to utilize this knowledge in the future.
I guess the moral of the story is, never really give up. Ultimately things might get so bad that you're running on hopes and dreams. Those experiences are generally the most humbling. Now I can finally present the site that I am basically a year late on to the client who will be so happy that I did not give up on the project entirely. I'll have experienced this feeling of pure euphoria, and help the small business significantly grow their revenue. Helping others is very fulfilling for me, even at my own expense.
Anyways, gonna stop ranting. Running out of characters. If you're still here... Ty for reading :')8
If anything taught me that garbage collectors aren't the one true answer for memory management then it's got to be modded minecraft
It takes around 10-20 seconds only to disconnect from a game and go back to the main menu.
You also get memory leaks, which result in several second long freezes when the GC kicks in, that happen every 15 seconds.1
I was looking at some info about how much ads pay, CPM and all that, came across a guy who answered a question related to this on quora (FUCK quora piece of shit content farm :/ but that's a story for another day) and put links to his apps on Google Play in it.
I always had low self esteem and think that I know nothing and I'm shit but seriously fact that people who make apps like this exist and are proud of their shit makes me feel better.
His entire collection of apps are garbage like this, like a "driving school" with images from Google Search and other games screenshots and "top 10 search engines" with just logos of search engines. 😂
I've had a Xiaomi Mi 8 for a few months now. Although I'm impressed by what I got for the amount I paid (a phone that cost about $250 for 6GB RAM, Snapdragon 845, Android 9 and premium build quality is quite a steal), it definitely comes with a consequence.
MIUI (specifically MIUI 11) is godawful. It is single-handedly the worst Android ROM I've ever used since my shitty Android 2.2 phone back around 2010. If you're gonna buy a Xiaomi phone, plan to install Lineage OS on it (but even that's a pain which I'll explain why later).
- Navigation buttons don't hide while watching a video.
Why? God only knows. The ONLY way to bypass without root this is to use its garbage fullscreen mode with gestures, which is annoying as all hell.
- 2 app info pages?
Yeah, the first one you can access just by going to its disaster of a settings app, apps, manage apps and tap on any one.
The 2nd one you can access through the app info button in any 3rd party launcher. Try this: Download Nova launcher, go to the app drawer, hold on any app and tap "app info", and you'll see the 2nd one.
Basically, instead of modifying Android's FOSS source code, they made a shitty overlay. These people are really ahead of their time.
- Can only set lock screen wallpapers using the stock Gallery app
It's not that big an issue, until it is, when whatever wallpaper app you're using only allows you to set the wallpaper and not download them. I think this is both a fuckup on Xiaomi and (insert wallpaper app name here), but why Xiaomi can't include this basic essential feature that every other Android ROM ever made has is beyond me.
- Theming on MIUI 11 is broken
Why do they even bother having a section to customize the boot animation and status bar when there's not one goddamn theme that supports it? At this point you're only changing the wallpaper and icon pack which you can do on any Android phone ever. Why even bother?
They really, REALLY want to be Apple.
Just look at their phones. They're well designed and got good specs, but they don't even care anymore about being original. The notch and lack of a headphone jack aren't features, they're tremendous fuckups by the dead rotting horse known as Apple that died when Steve Jobs did.
Xiaomi tries to build a walled garden around an inherently customizable OS, and the end result is a warzone of an Android ROM that begs for mercy from its creator. Launchers integrate horribly (Does any power user actually use anything that isn't Nova or Microsoft launcher?), 3rd party themes and customization apps need workarounds, some apps don't work at all. People buy from Xiaomi to get a high end budget Android phone at the price of some ads and data collection, not a shitter iOS wannabe.
They really, REALLY want you to have a sim card
If you don't have a sim card and you're using your phone for dev stuff, you're a 2nd class citizen to Xiaomi. Without one, you can't:
- Install adb through adb
- Write to secure settings
- Unlock your bootloader and get away from this trash Android ROM
What's the point? Are they gonna shadow ban you? Does anyone contact them to unlock their bootloader saying "yeah I wanna use a custom rom to pirate lizard porn and buy drugs"? They made this 1000000000x harder than it needs to be for no reason whatsoever. Oh yeah and you gotta wait like a week or something for them to unlock it. How they fucked up this bad is beyond me.
So yeah. Xiaomi. Great phones, atrocious OS.14
Stupid fucking communities normally all pieces of garbage. And no, there is no built in garbage collection, but then I find this, I POST 1 THING AND I GET GREAT RESPONES AND REALLY NICE ENGAGEMENT LIKE WTF3
The garbage recruiters are trying to sell is insane.
Don’t scrape the bottom of the ocean trying to pass barnacles off as salmon!
Just because someone can make computer go “beep boop” -- and you can’t — says more about you then it does about them.
Do they have a single thing in their portfolio that is even a little better than the output of the average “Learn x in y mins” video on youtube? Let that stock simmer for a little longer before you serve it!
Nothing in their portfolio at all you say? They’ve never once written code unless they were forced to? Top talent! Hired!
They scored 80% on your screening test? Wow! My dog scored 90%.
Modern day snake oil peddlers the lot of them.8
I've been a dedicated Golang programmer for a few years now.
But lately I learned rust, and now even the thought of garbage collection makes me davastated :(1
Oh my, never was i triggered more. Of course i can only speak for my experience. I study software development as focus.
First off, the starting languages and or concepts you learn.
Why the fuck do they start with java and don't even really explain how instances actually work? Of course they don't. Because it would be way too fucken much for a semester to go over garbage collection, Instanciation of stuff, allocation in such an advanced system, etc..
How about starting with something not 50% managed by a vm?
Good ol' C. And now don't tell me thats a rough start. We all know about these subjects or exams where it's all about sorting people out. Who will be able to manage a whole bunch of shit or who should consider something else.
Yo dawg sick idea: how about sorting it via the will to achieve the skill of coding?
Nah but we make the exams around coding (by the fucking way done on paper, what the hell) such a fucking breeze, asking you how to convert hex do dec.
Meanwhile maths will make you cut yourself in a dark corner, after you nearly shot yourself because of some lame-ass business-subject.1
If languages had slogans...
1) Java -- Buy one get two for free on your delicious NPEs.
2) C -- I burn way too much calories talking, let's do some sign language. Now see over there... 👉
3) Python -- Missing semi-colon? Old method. Just add an extra space and watch the world burn.
4) C++ -- My ancestors made a lot of mistakes, let's fix it with more mistakes.
5) Go -- Meh. I can't believe Google can be this lazy with names.
6) Dart -- I'm the new famous.
7) PHP -- To hide your secrets. Call us on 0700 error_reporting(0)
9) Lua -- Beginners love us because arrays start at 1
10) Kotlin -- You heard right. Java is stupid!
11) Swift -- Ahhh... I'm tasty, I'm gonna die, someone please give me some memory.
12) COBOL -- I give jobs to the unemployed.
13) Rust -- I'm good at garbage collection, hence my name.
14) C# -- I am cross-platform because I see sharp.
15) VB -- 🙄
16) F# -- 😴9
So another rant inspired me.
Tell me one fact or detail about your favorite programming language, other devs not using it, might not know about.
I go with: In Delphi you don't have garbage collection, unless you use interfaces the right way.7
In interviews, I tend to forget the basics while I can answer more advanced questions. For example, I can't for the life of me remember the four principles of OOP but I can talk about garbage collection in my main programming language.1
Having my first memory leak problem ever. This sucks. I've tried what seems like everything. Forcing garbage collection every time I press a key to try and debug the issue. Fuck. I have 'using' blocks everywhere, and I have no idea what I'm doing wrong.5
feeling like shit at work because I'm not productive at all.... I'm a fullstack web dev and was assigned to create a java data importer with multiple sources, multiple scenarios and using various data types... What makes this difficult is that I'm not used to strictly typed languages, because I'm used to swapping variable types and nulling them down/whatever I need to do with them whenever I want. In java I need to assign the correct variable types, there are no asociative arrays . I've been fixing one issue this whole day. Litteraly one fucking issue. Maneged to fuck javas garbage collection even though it's supposed to be automatic. Fuck. I feel like I need to stay late, and program on the weekends to achieve anything with this assigment because right now I feel like I make 0 progress. Boss leaves for vacation next week for a week, and he's the other dev that theoretically should be working with me...4
!Rant (sorry for that)
But does anyone know of a good 'raw' php book? (preferably an audio book) I want to learn a lot more about the core of php, how garbage collection works (for example) I have tried reading it from php.net but I only understood parts of it1
Meditation. Or Awareness Meditation to be precise. It enables me to regain control over my mind, because I get distracted really fast. It really helps sorting things out, taking a step back and getting an overview where I actually am and if what I'm doing right now is actually relevant/has priority. I mostly find that it's not, so I have to return to the important stuff.
For those interested: meditation sounds weird, even obvious at first or you just don't get what's it all about. You actually have to practice meditation for a long time and study the concepts until you start to understand what all these phrases and talking means. Behind them lies great wisdom/huge amount of concepts which is easily underestimated. So don't be frustrated too much if you don't feel it working right away. Be assured I've been there too. Also don't start with meditations like 'just stop thinking or think nothing' because in my opinion this is highly complex shit and frustrating at first. Start with awareness or breathing meditations or even get an app to support your daily habit.1
Our systems lead is trying to tell our software person how much adding unit tests would cost. It also sounds like he wants TDD to be added in after the fact. And he's bitching because the software guy won't move forward with it until we get it with the customer. He also wants all of them automated, but doesn't want to accept that that is going to cost a lot. Like a lot, a lot. This is a guy who doesn't know algorithms (had to explain dykstra to him), doesn't understand the tech stack we are using (I had to explain .net versions, the JIT compiler, and garbage collection to him), and seems not to understand hardware (I had to explain floating point math to him), yet he feels qualified to tell us how long it is going to take us to implement automated unit tests for major, complex features.
I hate Intellij Idea but it's best option available to develop in Scala. Improvements in VSCode/Metals is my last hope.
The (few) things I NEED from Intellij:
* Very good autocompletion
* Refactoring tools (renaming, auto imports)
* Search tools (find usages, sub/super-types)
The (many) things I hate of Intellij:
* Layout with panel sizes doesn't behave properly and it scales instead of remaining fixed.
* Tedious 2-hands shortcuts makes the right hand to move a lot from the mouse
* Delays and lag in the UI, freezes on garbage collection
* High memory consumption, high CPU usage and generally slow and cumbersome
* The delay in the UI between commands is so that it's accidentally possible to introduce typos
* Can't move tabs around and organize them as I like
* Ugly font rendering and missing typography settings
* Multi-caret implementation as a different editing mode is annoying because requires frequent switching
* Unnatural code folding regions, why method arguments are not folded with the method?
* Unhelpful support forum, sometimes dismissive answers
* Highlighting of current word under the caret doesn't work
* Very slow editor, can't keep spacebar pressed to move text or it hangs!
* Several settings reset at every update. Like the auto fetch of git
* New features are added and enabled by default which is very invasive
* Some of the features mentioned above are really annoying and it's not possible/not trivial to disable them
* It uses its own compile and several times it highlights false positives7
During my small tenure as the lead mobile developer for a logistics company I had to manage my stacks between native Android applications in Java and native apps in IOS.
Back then, swift was barely coming into version 3 and as such the transition was not trustworthy enough for me to discard Obj C. So I went with Obj C and kept my knowledge of Swift in the back. It was not difficult since I had always liked Obj C for some reason. The language was what made me click with pointers and understand them well enough to feel more comfortable with C as it was a strict superset from said language. It was enjoyable really and making apps for IOS made me appreciate the ecosystem that much better and realize the level of dedication that the engineering team at Apple used for their compilation protocols. It was my first exposure to ARC(Automatic Reference Counting) as a "form" of garbage collection per se. The tooling in particular was nice, normally with xcode you have a 50/50 chance of it being great or shit. For me it was a mixture of both really, but the number of crashes or unexpected behavior was FAR lesser than what I had in Android back when we still used eclipse and even when we started to use Android Studio.
Developing IOS apps was also what made me see why IOS apps have that distinctive shine and why their phones required less memory(RAM). It was a pleasant experience.
The whole ordeal also left me with a bad taste for Android development. Don't get me wrong, I love my Android phones. But I firmly believe that unless you pay top dollar for an android manufacturer such as Samsung, motorla or lg then you will have lag galore. And man.....everyone that would try to prove me wrong always had to make excuses later on(no, your $200_$300 dllr android device just didn't cut it my dude)
It really sucks sometimes for Android development. I want to know what Google got so wrong that they made the decisions they made in order to make people design other tools such as React Native, Cordova, Ionic, phonegapp, titanium, xamarin(which is shit imo) codename one and many others. With IOS i never considered going for something different than Native since the API just seemed so well designed and far superior to me from an architectural point of view.
Fast forward to 2018(almost 2019) adn Google had talks about flutter for a while and how they make it seem that they are fixing how they want people to design apps.
You see. I firmly believe that tech stacks work in 2 ways:
1 people love a stack so much they start to develop cool ADDITIONS to it(see the awesomeios repo) to expand on the standard libraries
2 people start to FIX a stack because the implementation is broken, lacking in functionality, hard to use by itself: see okhttp, legit all the Square libs, butterknife etc etc etc and etc
From this I can conclude 2 things: people love developing for IOS because the ecosystem is nice and dev friendly, and people like to develop for Android in spite of how Google manages their API. Seriously Android is a great OS and having apps that work awesomely in spite of how hard it is to create applications for said platform just shows a level of love and dedication that is unmatched.
This is why I find it hard, and even mean to call out on one product over the other. Despite the morals behind the 2 leading companies inferred from my post, the develpers are what makes the situation better or worse.
So just fuck it and develop and use for what you want.
Honorific mention to PHP and the php developer community which is a mixture of fixing and adding in spite of the ammount of hatred that such coolness gets from a lot of peeps :P
Oh and I got a couple of mobile contracts in the way, this is why I made this post.
And I still hate developing for Android even though I love Java.3
Completely fed up today, trying to investigate a memory leak using google chromes profiling tools, first of all all the "documentation" is well out of date so you have to pretty much guess your way through it.
Anyway i start to investigate and it looks like the JS Heap increases in size only after a garbage collection, surely this is the wrong way round or am i just being stupid2
Rust's type system is amazing. I love it so much, but every time I get a compiler error I look at garbage collection with envy. It's such a love/hate relationship.7