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If only more manager would think like this! Constant interruptions are poison to the performance of any dev team.
4 -
PROBLEM: A tickets' company came to us last autumn. They said they have severe performance problems and asked us to help.
SOLUTION: covid and quarantines. All events have been ceased, noone's buying any tickets any more. Performance problems are no more. FIXED.
PROBLEM: Another company came to us recently. They said they have severe performance problems with their huge databases and asked us to help.
SOLUTION: a few days of heavy rain and their datacenter was flooded. along with the backup servers. No more data, no more performance problems with large databases. FIXED
Solving problems genie style!
Who's next?9 -
based on true story
> delivered project on time
> giving good performance
> boss noticed
> gives appreciation
> raise in salary
> profit3 -
Pessimist: a O(2^n) algorithm's performance decreases exponentially as input increases.
Optimist: a O(2^n) algorithm's performance increases exponentially as input decreases.2 -
Someone at work trying to impress me: I recently got a really nice PC! It runs Microsoft 10 and has an i5 graphics card and a high performance case!
Me:
6 -
An ability to port all Windows games to Linux without performance loss due to bad ports and bad drivers so I won't have to dual boot anymore.5
-
So I upgraded my 8 year old Acer Aspire 7250 with Linux Solus and performance increased OVER 9000000000
FUCK YOU MICROSOFT I AM GOING LINUX!!!
18 -
I am someone that usually does stuff that is not required and afterwards regret it, but this is next level!
18 -
Devrant has a critical performance issue. It kills my performance. I believe more users can be affected7
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For my fellow javascript devs:
var floored = 12.68 | 0;
Is much faster than:
var floored = Math.floor(12.68);
And in both cases floored === 12
#JustJavascriptThings ¯\_(ツ)_/¯
Source: http://stackoverflow.com/questions/...
Performance test: https://measurethat.net/Benchmarks/...5 -
I just implemented parallelism in one of my major data collection tools for work, and cut the tool's run duration by 90%. That seems like as good a time as any to go to sleep.2
-
Annual performance peer review
Person who did review me wrote in the section “skills needed to improve”:
“He is introverted...”
Bloody hell!! What a big problem :) and how in earth you can “fix” it? And why everyone expected to be extraverted??11 -
I'm one of the biggest advocates for Chromebooks and Chrome OS ever.
But even I will call out the bullshit right here:
8 -
My friend got laid off today. He was told to not come to office from tomorrow. No explanation given even after a good performance review.
Why companies are so bad at treating employees like people.6 -
Absolutely :|
Build systems
Testing tools
Performance tools
Debugging tools
Automation tools
.
.
.
:|
5 -
1.5 hours of UI and performance enhancements for the UWP app on Windows Phone, and guess what greets me when I plug it in.
//kill me
//yes I restarted both
11 -
How NOT to make applications:
- single GET request called rather frequently
- 3304 SELECTs per request
- Some of them lasting ~50ms10 -
Why the hell is my performance & review partially based on the number of comments in my pull requests? piss off17
-
When you don't have new feature to add to the app but need to keep updates.
"General bug fixes and performance improvements."3 -
Just switched from Kali to Parrot OS. A very nice pentesting OS. Neat UI. ✌️
Great performance on a basic laptop.
7 -
I didn't download that fucking 56MB Skype Installation File just to get this message:
"Please install Skype from the Windows Store for better Performance."
NO I WANTED TO INSTALL THE OLD SKYPE NOT THIS BUGGY PIECE OF SHIT!2 -
I recently got mailed by our support department.
A customer using my program experienced performance issues after updating the whole system; attached is a video recorded by the customer clearly showing the difference.
I watched the video: the old version took 20 seconds to load. The new version 26. After querying the data, it's shown in a list.
The updated version showed 61 datasets instead of 6 in the old version.
I asked the supporter if he even watched the video and he answered: sure, and I'm able to see the performance issue!2 -
manager: we had great feedback last week, real users were testing our app! However, we have noticed a lot of issues regards database performance and data replication...
me: oh, that's great news!! How many users? Like hundreds?
manager: no, 6 users so far7 -
My first performance review as a graduate:
Boss: "we can't give you the rating you deserve because HR"
Me: "ok whatever, what can I do to get the rating I'm suppose to get?"
B: *lists job description of a senior developer* ... "Interview candidates, mentor juniors, start a project and make me profit"
Me: (if I can do that as a graduate, what am I doing here?)
My last performance review at the same company:
B: "we can't give you the rating you deserve because HR"
M: "ok what can I do to improve?"
B: *lists everything I did before the first performance review that wasn't expected of me*
M: (LoL funny, I just wanted to hear your response because I know you'd forget about the first review. Another reason to validate my resignation) -
I hate magento
I hate magento "devs"
I hate people who always cuts down HA vs short times performance
Fuck10 -
This is so true!
Too many companies in the past years have been focusing on moving rendering to the client, and not optimizing their webpages that we lost sight of making efficient and fast websites.
9 -
I overclocked my pc tonight... but it doesnt seem to have made a difference... :-S what am i doing wrong? :-S
2 -
Ok, I give up reverse engineering this. Full of netscape compatibility and iframes, and more shit.
Typical korean websites. ^v^
2 -
When I was a young boy and I was writing my first programs, I remember I was sad because they were fast, unlike other applications I used daily and admired, with their long splash screens and the hard drive constantly making noise whenever you performed an action. At that time for me, 'slow' meant 'serious'.
It's fun to see how things have changed today: ensuring performance is a critical part of my job, and DAMMIT WHY HASN'T THE WEB PAGE LOADED YET?!?2 -
Update log: performance improve, API rewritten, fixed all bugs reported, new features implemented, general cleanup of code, documentation and comments update
Feedback: love the new background colour!
😞3 -
When someone makes 1000+ API calls to populate a single view, something is seriously wrong 😮
But I like those waterfall design in network monitor.
6 -
Did you know that the modern way of boosting the performance of your computer is hitting the enter key as hard as you can when running a command?5
-
Boss: So what are your biggest achievements for this year?
Me: mmm, probably not killing myself
Boss: .....
Me: I meant I reduced the number of fraudulent transactions in our service by adding machine learning to flag suspicious transaction
Boss: Yeah, you should've start with that
Me: .....3 -
Z2: 3GB RAM
Z3: 3GB RAM
Z3+: 3GB RAM
Z4v: 3GB RAM
Z5: 3GB RAM
Z5 "Premium": 3GB RAM
X: 3GB RAM
X "Performance": 3GB RAM
ZX: 3GB RAM
Sony.. Alright...3 -
I'm soooo glad that the Google Drive team isn't one of those that always puts "But fixes and performance improvements." 😒
4 -
Our team was having a problem with very slow response times from a 3rd party web service they were contacting to get some device stats. No issues on the other end, but it had already been weeks. They ask me to take a look at it.
I take a few days, do a couple of benchmarks and tests and I isolate the section of code responsible. Turns out, the method they were calling would timeout if the device was offline. We ask the vendor, and they confirm this. They tell us to call methodX to check if it was up.
After having done that, lookup now only took seconds. They were annoyed that it wasn't documented but was just glad it was fixed.2 -
So someone wants me to sign a NDA so they can use my open source software (MIT licence) in there software.
They also NEED to minify there php to save on storage and to boost performance. 😂1 -
Guys who here is building ROMs and using linaro toolchain ? Is it good does it give some good performance ?
Want to include it in my room but dont know if it really got some performance boost4 -
I swear performance is the last thing on the minds of some developers. It’s going to be a long weekend for me.2
-
On negotiation and signing contract
================================
manager: yes you will work 8 hours a day from Tatta hours to Tat tat ta hours.
dev: okay great, i accept it. So no overtime and everythings right?
manager: that we will consider.
dev: hmm okay
=========================
Start working for about 1 month
=========================
manager: John, you not showing up at the office today? What happened?
dev: Sir, I have to stay up all night finished the last task as required and just sleep around 6am in the morning.
manager: John, i need to tell you. your performance is very great. Our clients are happy.
You deliver all the task. We love you, John.
dev: Yes thank you so much. I am happy too, but i need to sleep now i been over time for the last 3 weeks.
Manager: don't worry john, you will get reward later.
===================================
Weeks later:
dev: i need to request for leave, i am over work and now i am sick, my eye got red and cannot look at the screen.
manager: what is happening this month, you been late to work and you not deliver the task, you are sick and this and that, and depressed and whatever... tata taata,
dev: sir, when i first started you said i could only have to work 8 hours a day, now I work more than 12 hours day. What's change?
================================
life as devs in tough companies, high expectation and shit.
2 -
Consumers ruined software development and we the developers have little to no chance of changing it.
Recently I read a great blog post by someone called Nikita, the blog post talks mostly about the lack of efficiency and waste of resources modern software has and even tho I agree with the sentiment I don't agree with some things.
First of all the way the author compares software engineering to mechanical, civil and aeroespacial engineering is flawed, why? Because they all directly impact the average consumer more than laggy chrome.
Do you know why car engines have reached such high efficiency numbers? Gas prices keep increasing, why is building a skyscraper better, cheaper and safer than before? Consumers want cheaper and safer buildings, why are airplanes so carefully engineered? Consumers want safer and cheaper flights.
Wanna know what the average software consumer wants? Shiny "beautiful" software that is either dirt ship or free and does what it needs to. The difference between our end product is that average consumers DON'T see the end product, they just experience the light, intuitive experience we are demanded to provide! It's not for nothing that the stereotype of "wizard" still exists, for the average folk magic and electricity makes their devices function and we are to blame, we did our jobs TOO well!
Don't get me wrong, I am about to become a software engineer and efficient, elegant, quality code is the second best eye candy next to a 21yo LA model. BUT dirt cheap software doesn't mean quality software, software developed in a hurry is not quality software and that's what douchebag bosses and consumers demand! They want it cheap, they want it shiny and they wanted it yesterday!
Just look at where the actual effort is going, devs focus on delivering half baked solutions on time just to "harden" the software later and I don't blame them, complete, quality, efficient solutions take time and effort and that costs money, money companies and users don't want to invest most of the time. Who gets to worry about efficiency and ms speed gains? Big ass companies where every second counts because it directly affects their bottom line.
People don't give a shit and it sucks but they forfeit the right to complain the moment they start screaming about the buttons not glaring when hovered upon rather than the 60sec bootup, actual efforts to make quality software are made on people's own time or time critical projects.
You put up a nice example with the python tweet snippet, you have a python script that runs everyday and takes 1.6 seconds, what if I told you I'll pay you 50 cents for you to translate it to Rust and it takes you 6 hours or better what if you do it for free?
The answer to that sort of questions is given every day when "enganeers" across the lake claim to make you an Uber app for 100 bucks in 5 days, people just don't care, we do and that's why developers often end up with the fancy stuff and creating startups from the ground up, they put in the effort and they are compensated for it.
I agree things will get better, things are getting better and we are working to make programs and systems more efficient (specially in the Open Source community or high end Tech companies) but unless consumers and university teachers change their mindset not much can be done about the regular folk.
For now my mother doesn't care if her Android phone takes too much time to turn on as long as it runs Candy Crush just fine. On my part I'll keep programming the best I can, optimizing the best I can for my own projects and others because that's just how I roll, but if I'm hungry I won't hesitate to give you the performance you pay for.
Source:
http://tonsky.me/blog/...
13 -
Hours of refactoring just to get 0.5 seconds increase in performance per document generation.
Sounds small but makes a big difference when generating 100k documents.
Still not happy with it though...2 -
Teaching my homeschooled son about prime numbers, which of course means we need to also teach prime number determination in Python (his coding language of choice), when leads to a discussion of processing power, and a newly rented cloud server over at digital ocean, and a search of prime number search optimizations, questioning if python is the right language, more performance optimizations, crap, the metrics I added are slowing this down, so feature flags to toggle off the metrics, crap, I actually have a real job I need to get back to. Oooh, I'm up to prime numbers in two millions, and , oh, I really should run that ssh session in screen so it keeps running if I close my laptop. I could make this a service and let it run in the background. I bet there's a library for this. He's only 9. We've already talked about encryption and the need to find large prime numbers.3
-
Manager: let's use elasticsearch for performing relational queries. PostgreSQL performance is not great.
Me: Say what? 👿4 -
Rant!
Been working on 'MVP' features of a new product for the past 14 months. Customer has no f**king clue on how to design for performance. An uncomfortable amount of faith was placed on the ORM (ORMs are not bad as long as you know what you are doing) and the magic that the current framework provides. (Again, magic is good so long as you understand what happens behind the smoke and mirrors - but f**k all that... coz hey, productivity, right?). Customer was so focussed on features that no one ever thought of giving any attention to subtler things like 'hey, my transaction is doing a gazillion joins across trizillion tables while making a million calls to the db - maybe I should put more f**king thought into my design.' We foresaw performance and concurrency issues and raised them way ahead of the release. How did the customer respond? By hiring a performance tester. Fair enough - but what did that translate into? Nothing. Nada. Zilch. Hiring a perf tester doesn't automagically fix issues. The perf tester did not have a stable environment, a stable build or anything that is required to do a test with meaningful results. As the release date approached, the customer launched a pilot and things started failing spectacularly with the system not able to support more than 15 concurrent users. WTF! (My 'I told you so' moment) Emails started flying in all directions and the hunt for the scapegoat was on (I'm a sucker for CYA so I was covered). People started pointing in all directions but no one bothered to take a step back and understand what was causing the issues. Numero uno reason for transaction failure was deadlocks. We were using a proprietary DB with kickass tooling. No one bothered to use the tooling to understand what was the resource in contention let alone how to fix the contention. Absolute panic - its like they just froze. Debugging shit and doing the same thing again and again just so that management knew they were upto something. Most of the indexes had a fragmentation of 99.8% - I shit you not. Anywho, we now have a 'war room' where the perf tester needs to script the entire project by tonight and come up with some numbers that will amount to nothing while we stay up and keep profiling the shit out of the application under load.
Lessons learnt - When you foresee a problem make a LOT of noise to get people to act upon it and not wait till it comes back and bites you in the ass. Better yet, try not to get into a team where people can't understand the implications of shitty design choices. War room my ass!3 -
Hmmm, this feature that I added seems to make the whole process 50% longer. I need to optimize something. Let's see now...
Yeah, make that a shared resource and parallelize IO to leverage the multi-core architecture. Hash map for this, binary tree for that. This thing that gets called a million times can be written easily without a regexp. That thing can be rewritten in Rust as it's too demanding.
There! Works! And it's also a lot cleaner. Nice!
How's the performance doing? 70% longer.
11 -
Building my own router was a great idea. It solved almost all of my problems.
Almost.
Just recently have I started to build a GL CI pipeline for my project. >100 jobs for each commit - quite a bundle. Naturally, I have used up all my free runners' time after a few commits, so I had to build myself a runner. "My old i7 should do well" - I thought to myself and deployed the GL runner on my local k8s cluster.
And my router is my k8s master.
And this is the ping to my router (via wifi) every time after I push to GL :)
DAMN IT!
P.S. at least I have Noctua all over that PC - I can't hear a sound out of it while all the CPUs are at 100%
14 -
ffmpeg...
I FUCKING LOVE YOU!!
I CAN JUST STACK THOSE FILTERS WITH NO RESTRICTIONS OVER AND OVER WITH DIFFERENT INPUTS AND OUTPUTS!!
Also: it fucking works with still images, AND IT’S FUCKING FAST!!
It’s around FOUR (4, DO YOU REALISE THE IMPROVEMENT) times faster to GAUSSIAN blur an image and then composite an image over it with ffmpeg, than to composite the image with imagemagick (no blurring)!!3 -
For those interested in my ealier experiment of drinking and coding, it did work.
Of course, it's not a very viable method of increasing performance.9 -
DO NOT f**king run automation and performance on the same f**king environment! You'll f**k up both the tests. Today is gonna be a long day.1
-
Somehow my brain assumes that code is high performance code when its all written in lowercase... :D5
-
When the test database has better specifications & performance than the production one.. FML! 😭😭😭😭😭2
-
it always amaze me when client thinks that new layout for his site will solve all performance problems3
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When the change log says "fixed bugs and improved performance" only to find the entire application has been redesigned.1
-
When throwing more hardware at a problem is always the chosen answer rather than fixing the performance issues...4
-
The performance is based on how much code you wrote that day.
Not mine though, i heard/read it from somewhere else.
But that’s fucked up, right?22 -
I had a performance review with my boss and his boss today.
After they told me what they wanted to, they asked for my feedback. I was very honest with them and didn't only tell them the good stuff but the things I've been disappointed with as well.
Well, last year was mostly a big fat disappointment for me at the company, both on a professional and a personal level, which seemingly took them by surprise and hurt their feelings because they think it is the best place to work at. Even though I tried to make my feedback as constructive as possible, they didn't really seem to understand the problems and kept saying what a good company this is and what amazing opportunities will this year hold.
And they gave me a raise before I could even ask for it.6 -
Extensible event system design in c++ - but also includes built-in static types for uniformity and performance.
Happy with it!
14 -
Let's create mentally what should never be, something with so ridiculously bad performance, even the devil wouldn't let someone use it.
My idea: a JVM emulator written in JavaScript.
What can you come up with?7 -
I was assigned the research of an issue, after doing that I told in a meeting what we needed to solve, then someone asked which engineer would take care of that so I said me and they didn't listen. Then they asked again and someone else spoke before I could. I can't have good performance if they don't give me tasks. I'm bored of doing nothing, fuck quarantine making people forget I exist.5
-
C might be a pain to write, but holy cow does it run circles around python from a performance perspective. Easy to forget in fields like data science, where python is the default9
-
Project Manager: I want you to work faster and make the performance faster. No excuses
Specs: potato pc9 -
It's 2:49AM
my fucking brain starts working in high performance mode right now and sleeps not exist anymore :/1 -
"No my phone is faster then yours. I prove you"
Puts Android Device and iPhone next to each other and opens Facebook app at "the Same time" by clicking on the app icon after counting down from 3.
"See its way faster"
*Facepalm*6 -
Any nexus 6p users are out there? I'm thinking of flashing a new rom because the performance is taking a big hit and battery life is becoming abysmal. Any recommendations for this particular phone?20
-
Just read an article stating you shouldn't buy windows 10 home and should buy pro instead because of 'potential performance increase' due to some of its 'added performance technology'...
Do I need to say more?8 -
After a week of logs investigation, we finally found a solution for performance issue. Just scaled up the app vertically to the next tier plan in Azure.5
-
Tried pomedoro technique copule of time found that this doesn't work for mE. The only things worked is
1) do 4 hours straight
2) take 1 hour break
3) do another 4 hour straight
works much wetter3 -
The more I work with performance, the less I like generated queries (incl. ORM-driven generators).
Like this other team came to me complaining that some query takes >3minutes to execute (an OLTP qry) and the HTTP timeout is 60 seconds, so.... there's a problem.
Sure, a simple explain analyze suggests that some UIDPK index is queried repeatedly for ~1M times (the qry plan was generated for 300k expected invocations), each Index Scan lasts for 0.15ms. So there you go.. Ofc I'd really like to see more decimal zeroes, rather than just 0.15, but still..
Rewriting the query with a CTE cut down the execution time to pathetic 0.04sec (40ms) w/o any loops in the plan.
I suggest that change to the team and I am responded a big fat NO - they cannot make any query changes since they don't have any control on their queries
....
*sigh*
....
*sigh*
but down to 0.04sec from 3+ minutes....
*sigh*
alright, let's try to VACUUM ANALYZE, although I doubt this will be of any help. IDK what I'll do if that doesn't change the execution plan :/ Prolly suggest finding a DBA (which they won't, as the client has no € for a DBA).
All this because developers, the very people sho should have COMPLETE control over the product's code, have no control over the SQLs.
This sucks!27 -
!dev
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
Seriously.
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.
TL;DR
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.
PS.
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 -
For whatever ungodly reason my containers library, which has extensive testing, profiling, and benchmarks against other containers libraries receives regular emails directed towards me about it, always one of two things
1) "don't reinvent the wheel" I have to assume these people haven't looked at the performance characteristics or features at all. I didn't waste away weeks of my life. I needed something and couldn't find it anywhere. I'm outperforming many crap implementations by nearly an order of magnitude, and can offer queries upon the containers in both generalized and specialized forms. As an analogy, I made airless 3d printed wheels, and people are regularly telling me I should still be using ancient wooden spoke wheels; they probably would argue in favor of using a horse drawn carriage as well. How is it possible technically minded people can also be so anti-progress?
2) "Please rewrite this in X language." You know what? YOU rewrite it. I chose what I did because it made it easy to do what I needed to do. Hilariously, the languages I get asked to use most often, are the same who's containers libraries perform worst in the benchmarks.
Both sound like half baked developers trying to sound superior. Pull your head out of your ass and actually outperform me and others. I'm so fucking sick of this "all talk no action" bullshit.5 -
When I had to implement fibunacci recursively at university, wrote an iterative algorithm instead and impressed everyone with my insane performance.2
-
Greaaaaaat, Apple introduced a performance bug in iOS 12.1.2 that affects my app on iPhone X and higher. It just makes me work5
-
Messing about with inline functions in regards to performance. In general, when am I supposed to use them?
3 -
Is it me or the spectrum patches in 4.19 didnt make any impact on AMD ? The performance is actually better compared to 4.18. GNOME runs smooth as butter. This is fucking impressive. And in the meantime Intel users say that its fucking terrible since they get about 20% drop in performance because those patches.2
-
Recently I tried implementing a 2d grid you could drag (for performance I decided it would auto genetate new grid tiles)
Gotta say, I have a lot more respect for people who try to build this without a framework, I am building it using JavaScript and pixi.js
But man, drawing graphics is hard 😅
It's worth it though, performance is mad 💪3 -
I am defending my project today "Effect of international financial reporting standards on company performance (a case study of quoted manufacturing firms in Nigeria). Pray for me2
-
One of the largest companies on the continent. Uses Oracle on AWS RDS with the beefiest resources available. It comes to the point where lowering the number of CPUs boosts the DB performance up (concurrency). Point is - Oracle is sweating hard during our tests. You can almost feel the smell of those hot ICs on AWS servers.
And then someone at higher levels, while sitting on a pooper, has a great idea: "I know! Let's migrate to Aurora! They say it's so much faster than anything there is!"
*migration starts*
Tests after migration: the database on the largest instance possible shits itself at 10% of the previous load: the CPU% is maxed out (sy:60%,us:40%), IO is far, far from hitting the limits.
Is it really possible Aurora will cope with the load better than Oracle? Frankly, I haven't seen any database perform better than Oracle yet. Not sure if it's worth to invest time in this adventure..2 -
If you have anything that runs too slowly, you should profile it today! Don't wait for worst performance.2
-
I like when the changelog in PlayStore's apps says "Fixed errors and performance improvement" and the main errors are still there and the performance is worse.
:)2 -
- Install Overwatch via Lutris on Linux.
- Get absolutely terrible performance and rendering bugs.
- Disable DXVK.
- Get slightly better performance (wtf?).
- Still runs at like 20% of potential performance.
- Give up and try to install Windows.
- Windows install fails.
Aaand so I spent my weekend configuring shit instead of relaxing/gaming. Ugh.10 -
When the changelog (of an app) says "minor improvements in stability and performance" and you are greeted with a completely new UI that makes no sense at all 😡4
-
Overhears colleague say 'Ohh there's a plugin for that'. Few weeks later i find the dumb fuck added it to the codebase and not use the dependency manager. I'd happily shoot the senior Dev who peer reviewed it but looks like this pleb merged straight in!
With a codebase overflowing with duplicate frameworks and unused jquery plugins I'll be burning the god damn place down come next week!2 -
when you realize that performance issue you just could not figure out is the SYS admin taking a full back of your production machine during peek traffic hours
-
When a microservice you created does not perform on prod like it performed on the load stage. There goes my week and my self-esteem 😥2
-
I wrote a Rust script in 10 minutes or so that processes several GiB's big ISO files and it calculates its values so fast, that most time is spent waiting for the HDD! Look at the CPU usage and the disk read/write stats :D
(No, the picture is not fake, it's a real screenshot from my desktop edited with Gimp)
7 -
An application requiring lots of servers to handle the workload is not the problem.
The problem is an application that cannot handle workload no matter how many servers you throw at it.2 -
So, I've posted a question on StackOverflow. I was curious about better (in terms of performance and cleaner code) ways to solve a problem. And a fckn dickhead added a comment like this: Why worry about performance?
8 -
Ffs, HOW!?!? Fuck! I need to get this rotten bs out.
RDS at its max capabilities from the top shelf, works OK until you scale it down and back up again. Code is the same, data is the same, load is the same, even the kitchen sink is the same, ffs, EVERYTHING is the same! Except the aws-managed db is torn down and created anew. From the SAME snapshots! But the db decides to stop performing - io tpt is shit, concurrency goes through the roof.
Re-scale it a few more times and the performance gets back to normal.
And aws folks are no better. Girish comes - says we have to optimize our queries. Rajesh comes - we are hitting the iops limit. Ankur comes - you're out of cpu. Vinod thinks it's gotta be the application to blame.
Come on guys, you are a complete waste of time for a premium fucking support!
Not to mention that 2 enhanced monitoring graphs show anythung but the read throughput.
Ffs, Amazon, even my 12yo netbook is more predictable than your enterprise paas! And that support..... BS!
We're now down to troubleshooting aws perf issues rather than our client's.... -
Converting an SVN repository with 5313 revisions to GIT for a performance test. Might take a little while.
Kinda nostalgic watching all the old file changes fly past though :')1 -
I am sick in the past two weeks.
"A virus " according to the doctor.
This cause me to drop performance for about 10%
Feels awful4 -
## Scripting myself out of the company
who needs an expensive profiler, when you can make thread dumps and compile them into a flamegraph for free without any risk of outages!
Though what bothers me is that I'm yet to come across a person in this company who knows how to read them (besides me)...
Are flamegraphs really THAT unpopular?
I mean.. you can represent the whole profile in a single image!9 -
I think I may need a second graphics card. Not because of the performance but because I want to use more than 4 displays...
Damn first world problems!15 -
More high-level stuff, sweet libs, awesome frameworks and the next generation of devs complaining about bad performance and too much abstraction.
-
Oh how I miss straight forward programming. I've been working on performance enhancements for a month. Optimizing angular is no fun.
-
No performance bonus was mentioned in my contract but hey they gave me one anyway... Man I love working here2
-
I'm currently at a company where we have "performance reviews" every 2 weeks, and based on the outcome we get a percentage which then is used to calculate a performance bonus.
This is simply my manager (also a developer) who has his Excel spreadsheet, looking at tasks I did over the course of the past 2 weeks and almost nitpicking to find some fault. There is no code review or software demo to see what's been done either... I was there for the first 3 months and I don't think anyone had even open my code!
And when confronted, I get told that "You should also somehow be financially liable for the goings-on in the business", along with a 2 hour meeting to support that.
This is NOT how you motivate developers!
Apologies for the long rant...
</rant>7 -
Pull Request Message -
Day 1: "Updates to the UI and the load performance of the page."
Day 127: "shdheiahwjak"6 -
A colleague figured he would fix our performance issues by replacing .Count() > 0 statements with .Any()
Perfect idea, except he just did a replace all.
But hey,
var totalCount = items.Any();
Might have its uses. -
I set up my Raspberry Pi 3 B+ to be a git server and Web server!! It’s not a meant for performance just my own personal enjoyment :)1
-
I hope I'm not spending several days worth of work rewriting a code base for it not to have any performance benefits at all.7
-
Every time I see the N+1 query problem in people's implementation, I feel like crying. Especially when it's dealing with large data sets of something like 1000 records.2
-
Optimizing JS is such a pain. like, the total runtime of the rest of the code is not measurable compared to DOM operations, so the goal would be to optimize DOM access, but there are zero resources online on the relative cost of certain operations, and I get the feeling that they don't have much in common across browsers.2
-
Happend a few months ago...
We encountered a performance issue somewhere in our Code, written by a guy who already left.
It was kind of this:
foreach(var id in idList)
{
CallServiceWithDataBaseAccess(new List<string>()
{
id
}
}
Well. It was obvious as in this example... -
More of a statement but interpret it as a question and answered why it is.
"performance on Linux sucks, my (exe) repack ran much better on Windows also my remote desktop can't connect" -
Everything jetbrains. It has so much increased in performance and usability over the last couple of years and is the perfect tool for me.
-
!rant
Fucking amazon performance from Alestorm at Copenhell!!! 🤘
Anyone else enjoying the festival?
6 -
How the fuck do you do a performance review?
For me, we need to do self assessments.
Part of it is what I do well, part of it is what i need to improve.
No idea what to put, since I feel like I'm awful at everything lol.11 -
So I was searching how to speedup my page speed of site which is built on Codeigniter and despite minified css and js I read this:
" CI active records are garbage, use classic quries"
:'( I used active records all over my app -
hey everyone,
how do you know if your boss really cares about you on your performance review or if he just wants to follow the trend?7 -
Feeling like shit, tired, stressed and then going into a performance review where aparently im far exceeding what i need to do. Makes me wonder why i need to feel like this, i dont really feel excited although there was positive news.. I think i need sleep1
-
Tip: if you are doing a semi complex or complex query in Django and you have doubts print the SQL statement and analyze it. i.e print(queryset.query)
Just reduced a query to 1 join instead of two by just passing a list of int's instead of a list of objects. -
Love the craic of running a performance test that takes 30 minutes a time just to test one or two lines worth of changes 🙃4
-
Since the issue is within the legacy backend data, this brings us the great opportunity to solve and sanitize the data on the frontend and therefore killing the performance of the application! Sincerely, a manager that doesn't give a shit3
-
Does anyone do psychedelics? Do you find it hurts your programming performance, increases it, or just general thoughts on the subject?10
-
I am forced to work with a client's notoriously slow SOAP api. Slow in this case is 1.5-2s per request.
The api is structured rather... creatively... at the same time. So we have to bombard it with thousands of requests to build our data base with historical SOAP data. Also the data sometimes is a couple of hours late, giving a flat line (all values at 0) until retroactively fixing the output for the same requests.
So to fill one dev data base with a year's worth of historical data (nice to have when testing a dashboard application) we hammer the api with ~20k requests (~1 million if we want to be thorough).
Best thing about that: There is no staging/test api and the prod api seems not to handle lots of requests at the same time very well...
Latest thought: Maybe we could put a varnish cache in front of the SOAP for testing. Better have wrong data, than nothing at all and we don't kill the prod clients every time we ramp up a new instance.
Also that would dramatically decrease the 4.2 hours of data pumping to about 7 minutes after the first run. -
“Everyone is busy building stuff for right now, today, rarely for tomorrow. But it would be nice to also have stuff that lasts a little longer than that.... You don’t have to be a genius to write fast programs. There’s no magic trick. The only thing required is not building on top of a huge pile of crap that modern toolchain is.”
—Nikita Prokopov, “Software disenchantment”, retrieved from http://tonsky.me/blog/...5 -
Kodi is shit.
And all the other things (which seem to be just kodi with a different ui. All of them) claiming to be "tv box ready" with sentences like "let your smart tv look old": bro if I can't even install fucking netflix alongside youtube with a nice navigation (product native at best), need to use some kind of keyboard because you won't work with my paired aftv remote and get like 4 fps on a fucken raspberry pi.. my smart tv looks like it's from 2075.8 -
Why on Earth would a Performance Testing application such as JMeter have such a low Java heap space by default.. i mean wouldnt it make sence to set this as high as possible for a Performance Testing tool ? 😞3
-
I am using Ubuntu for two years now, for me it is faster than windows. To have more speed what’s next!?7
-
Does anyone else's manager measure their performance based on jira ticket count or merges to master? It feels like a new lines-of-code measure to me...5
-
I got my new(to me) MacBook Pro last week, provided by work. I've got all my setup and config done, for the most part, and I've noticed something.
Performance is shit. Has anyone else noticed this about the 2017 and later models? The 2015 model I had before was much, much smoother. Just zooming windows, a previously butter-smooth experience, is noticeably choppy. I/O performance is garbage too. I have a small iotest script that just writes a string a couple hundred times to disk, deletes it, and repeats this activity 100,000 times. On my Linux machine at home with six year old hardware, this takes about three seconds. On my new system76 laptop it takes just over a second. On the 2017 MacBook Pro, it takes about forty seconds.
The 2017 and 2018 models are a direct downgrade in performance. Why isn't anyone talking about this?11 -
Is it me or most developers just write code so it compiles and passes tests?
No documentation, no standards, no "good practices", no"good design", no software principles, no performance analysis, nothing.1 -
load balanced three micro nodejs instances with Apache in my local system. load performance improved by 50% straight.6
-
So is everyone prepared for the up to 30% performance hit on DB servers due to Spectre and Meltdown? Going to be a very interesting year....
-
!rant
Guys, will a 150kb minified js package for frontend slow my site down? How large is too large for a frontend script?6 -
>World War 3 outside
>Calls boss
Me: Can't come into work today, I died
Boss: This is going against your monthly performance review. -
Any mid-class phone recommendations?
I want a good battery and relatively okay performance. Any android device, between 150-350€ maybe.
(Idc about camera etc)9 -
Was trying to figure out why my fix had created a performance issue in our app. Tried loads of different things. Turned out it was because I was iterating over a ~300 item array, and then iterating over another ~300 item array within that loop 😂
300 iterations * 300 = unhappy iPad2 -
That sadness when you cannot figure out reproduce the performance of a program and the VM won't cooperate :(
-
Just had a meeting about performance and monitoring. The main topic of the meeting was to be aware of disk space usage. If there are issues with memory leaks or processor hogging don't worry those are fine, just give it more.1
-
This is the first company I've been at without annual performance reviews. Employees are supposed to go to their manager when they feel they deserve a pay increase and start and undocumented process of writing up their contributions for the year. No standard cost of living increases.7
-
!rant
Ever find something that's just faster than something else, but when you try to break it down and analyze it, you can't find out why?
PyPy.
I decided I'd test it with a typical discord bot-style workload (decoding a JSON theoretically from an API, checking if it contains stuff, format and then returning it). It was... 1.73x the speed of python.
(Though, granted, this code is more network dependent than anything else.)
Mean +- std dev: [kitsu-python] 62.4 us +- 2.7 us -> [kitsu-pypy] 36.1 us +- 9.2 us: 1.73x faster (-42%)
Me: Whoa, how?!
So, I proceed to write microbenches for every step. Except the JSON decoding, (1.7x faster was at least twice as slow (in one case, one hundred times slower) when tested individually.
The combination of them was faster. Huh.
By this point, I was all "sign me up!", but... asyncpg (the only sane PostgreSQL driver for python IMO, using prepared statements by default and such) has some of it's functionality written in C, for performance reasons. Not Cython, actual C that links to CPython. That means no PyPy support.
Okay then.1 -
I find it really hard to accept that a non-iOS developer rates my performance based on source code he doesn't clearly understand
-
Seven p's ( prior planning preparation prevents piss poor performance) couple with KISS. What about these two things can PM fuckers not understand.1
-
The amount of misinformation in quora answers is absurd. Dude was seriously trying to tell me let is slower than var after I provided him data proving that they are nearly same in performance tests.6
-
Tried this today:
Xubuntu running Ubuntu on a Virtualbox machine running Android emulator (ie. running Java virtual machine(s))
Failed miserably and even if it would have worked, I think the performance would have been horrible.1 -
Can someone tell how does Instagram load images so fast without any delays ?
Because i'm planning to enhance my application performance as much as i can5 -
Guys. Guys. Guys.
I went to sleep last night, after hunting a bug the whole day that showed up towards the end of my simulations (after several hours of simulations) and that crashed my program.
The crash was due to a bounds error in a fixed size vector, that worked on all the other thousands of iterations but for some reason randomly crapped out late into the sim. So I gave up and went to sleep.
Booted up my program today, 10x speed gain and no bug. Please send help. My brain is playing games with me, I'm sure. This shouldn't happen. :(1 -
<Question>
I'm curious: For those of you who have tests running in CI pipelines at work:
How long does it take to run the tests, in relation to the system's size?
At my company, it's ~ 30 mins, testing 1M lines of code (750k SLOC) written in Java (85%) and JS (15%).7 -
Are there any *performance benefits* in having your users comments on a separate page rather than the actual post/article page?
Example use-case: medium.com7 -
Manager has asked for feedback thru some performance review system.... but this is so reassuring....
Guess I need to be in a super good mood to provide only the positives...
-
Spent 3 weeks getting brainf#@ked by c++ templates and SFINAE trying to "compile-in" the conditions. Later got to know performance was not required this time. FML!
-
Programming anxiety is when one of the similar methods could be 1% better in performance and you're stunned by such a tough choice, which one to use/test first.
-
!rant
Aside from performance concerns.. which one would you prefer for an optional callback?:b
I always use B, but i'm kinda interested in what you guys say.
✌
9 -
!rant
When learning to develop mobile applications, should I learn android and iPhone separately, or just use xamarin instead?
Can xamarin replace it all, or do you loose some functionality/performance etc when using it over android studio and Xcode?7 -
I have a love hate relationship with the Java garbage collector I love it when it works but when I notice it gcing in performance tests I know bad days are ahead
-
I have to put together a "performance improvement plan" for a senior dev today. Not the best part of this job.4
-
Atlassian truly know its way to use marketing euphemisms in such a way that it feels like a slap in my face and kick into my groins.
The next time my app crashes and people come running to me that they cannot used it at all, I will simply state that I am looking into reports of people seemingly experiencing "degraded performance".
At least they are consistent, as they did that as well in the past with their [minor glitch](https://devrant.com/rants/922343/...) thing.1 -
Hey guys, who has experience with JPA/hibernate RESTful performance numbers.
Interesting would be:
* persistence operations per second, and the response times
* proportion between read/write for a typical rest service
Rightnow i get ~300ms read, 900ms write at 350 concurrent requests. 75% write operations
I more or less ruled out my custom code, problem seems to be hibernate (of course ...😋)
Stack: jetty, jackson, hibernate, mysql9 -
Why is it so hard for some programmers to gain the maximum performance and not to waste any resources?7
-
I'm getting annoyed by the smallest things, like when someone does "test".equals(var) instead of var.equals("test").
It not only reduces readability, it just doesn't look right to me. And I don't think there's a difference in performance between the 2.7 -
Long story...
I'm a junior-ish dev (worked 3 year part time in a small company)
I've been assigned the happy task of doing some performance profiling on our windows application to see where we can work to make the app run smoother.
Visual studio profiler keeps crashing when generating the report when I do CPU sampling.
I'm a very unhappy Dev right now.1 -
App Update changelog: "Bug fixes and performance improvements."
What the update is actually about: "Well. We've added some cool intrusive Ads that will screw up your entire app experience. But we don't care."2 -
Have any other nexus 6P users experienced battery and performance issues when upgrading to android O?
I love this phone and I'm not ready to admit it may be on its way out.... Denial is bliss sometimes4 -
IMHO, the Amazon Fire Stick represents a "race to the bottom" for media devices in terms of interface design, functionality and app support.
They join the Apple TV waiting there since the second generation device.
Everything you could ever want to stream is either a few hundred clicks away or on a different device. -
That realization that you have a memory leak that invalidates all of your previous performance testing1
-
It's ridiculous that the server factory default configuration is of worst efficiency while providing zero performance advantages.
-
Most people who talk about language performance are just repeating what they heard from others.
For 98% of use cases, Python or Ruby, for example, are more than fine for running production systems at scale.
Also, a language does not necessarily guarantee speed/performance if you write shit code.
I've seen a properly written Python application perform better than a Java application.
I'd love to stop having this debate with folks every time.13 -
What do you use for performance monitoring on your infrastructure?
My company uses zabbix, OpenNMS and Nagios to monitor different parts of our infrastructure (from shared web hosting to OCCAS to IPTV to FutureVoice to Atlassian servers) but has no real-time performance checks.
I’ve set netdata master with prometheus backlog and grafana dashboards to monitor different metrics, however I am not sure whether any better approach could be done. Any suggestions?2 -
By implementing proper eager loading in Eloquent, based on a sample request, I reduced it from 850 DB queries down to just 14 DB queries. So that's an increase in 98% performance?
-
Why the heck does everyone thnk it's a good idea to run docker Containers inside a vm?
Or Containers in general...
This is unneeded redundancy and it kills the performance aspect, which makes containers favorable in comparison to vms...3 -
"Bug fixes and performance improvements" - what I actually mean is that I shipped some dodgy code & this patch covers my humongous arse...sort of.1
-
When they don't immediately piss on their device after booting Window$ 8, 8.1, or 10 to increase performance
1 -
Reviewers: The new RTX 2080 has the same performance as GTX 1080 Ti and it costs much more!
NVIDIA: https://youtube.com/watch/...1 -
Is it possible to record the time a thread spends processing only it's code?
E.g. capture sys.ms in thread A -> A is sliced and thread B runs -> B is sliced -> A comes back and captures current sys.ms. The resulting delta of Anow - Ainit includes the time that B spent on the machine.
Is it possible to account for this and get just the time A spent processing?
Is this doable on any other languages?
If it is or isn't, any documentation or papers explain why is appreciated. Google is flooded with "how to time" questions so I'm not seeing any answer for this.7 -
How can I be pro at string/json manipulations/regex etc?
I really suck at it and it really impacts my performance.3 -
Not being suitable for eveything is my biggest annoyance with Python. Give me Python with the performance of assembler and I'll be in heaven :)6
-
What did I accomplish today?
80% improvement in build time AND you can now run multiple builds in parallel. You're welcome. -
When you have high performance set, yet your lame CPU won't get above 0.75Ghz, so you have to constantly reboot to hit the 3.50Ghz jackpot1
-
Any db suggestions for storing timeseries data? Nosql.
PS: Can go upto 10million entries so performance matters.5 -
I see people working with Atom. I assume none of them are dealing with even moderately large files. Codepen has better performance.6
-
Manager writes all good things on performance review!! I think i am a part of some big conspiracy!!1
-
BACKSTORY:
I was considering creation of client-server app to learn some new language and wanted it to have the best possible performance.
The client part is not an issue, it can be whatever, really... the server choice is pain in the ass...
I have looked up web server framework benchmark here: https://techempower.com/benchmarks/
So comparing those I have 2 options:
- Actix (Rust)
- Vert.x (Java)
I was about to use Vert.x, it handles requests asynchronously which seems nice.
However I thought, what if I wanted to sell this shit someday and Java requires licenses, while Rust don't.
I am terrible if it comes to licenses, so...
QUESTION:
How does Java licensing work?
It is on client to pay it cause he is using it or on me as a product owner?
Or should I switch to Rust already?5 -
Right now?
Partial
Because it's given me a measurable performance gain in an app that (with the production database loaded) takes hours to complete it's task. -
Best : creating a fully customizable, performance-oriented ETL service from ground up.
Bad : developing in xamarin forms in Android .
Worse : porting said xamarin forms app to ios. -
I hate those websites that paint within one second and then it takes two seconds to load all the other assets. It seems bare minimum to me. Idk about you all but I would rather have it loaded in three seconds instead of me trying to scroll immediately and thinking my computer is going to crash from the low framerate.7
-
Boss: 360 reviews are great!
Also boss: Let's publish the top xx scoring devs to everyone in order to encourage growth!!
360 reviews are meant to be private, dumbass.1 -
A new version of a service request queue processor was deployed to test. It was supposed to have a performance boost compared to the previous version. The performance is so good that the new transactions are still locked when SRQP attempts to process their workload, so it ends up issuing empty transactions in another module. Artificial delay time...
-
Question: to those who may have been hosting resellers. Will upgrading to a VPS decrease performance for clients as compared to when you resell shared hosting?
Also, would anyone happen to know any good shared hosting reseller plans? :/5 -
The joy of ops - when the customer says "my reporting environment isn't fast enough - can I get my reports from the production environment?" and we've specifically created the reporting environment for insulating the system from performance-hogging queries...
-
Want to know how to really screw the performance of your web service? Throw in some database row locks with no timeout
-
I am more convinced that a 2-3yr old CPU, compared to its equivalent latest model, won't affect performance much anymore. Jus have an adequate amount of RAM.6
-
If you are falling to stored procedures for every performance optimizations
Concludes You haven't started well.. -
The scrolling of the devRant feed seems alright but when I click on a rant to view the comments, the scrolling on that page isn't very smooth. This seems to have happened after I updated it today @dfox @trogus5
-
My shell was taking a really long time to start and I spent hours disabling every single plugin and trying to start it up without it to find out which one was the culprit.
Turns out it wasn't any of my plugins, it was NVM.
https://github.com/creationix/nvm/... -
Does anyone here use PHPStorm? I upgraded to 2019.2 and it has slowed down considerably. I'm on a MacBook Pro 2017.13
-
Just want to ask a question here to avoid the downvote on stackoverflow.
Does apache + mpm_event + PHP-FPM capable of handling 500 simultanous requests, on a server with 4CPU cores and 16Gb of RAM? -
The 1080ti is rated at a little more over 11 teraflops. GPUs with over 1 teraflops of compute performance was released in the early 2000's.
It's 2017 and we are stuck with fancy gen xxx cpus.
I smell a huge compute performance wastage.1 -
I don't understand why corporate waste so much money on agile training they know that doesn't gonna improve performance of developer at all. Instead of it decreases his performance because of so many annoying meeting and reporting3
-
!rant
Quickly! I've got a report due in about 2 hours, I've got the data and already some charts generated with tools.
Now, I need a nice timeline generator for calculated data. Something where I can plug in times and durations — and get back a fancy looking timeline. Similar to what Chrome dev tools does for network inspection.6 -
Great start to a day when a new release of code has performance degrade over time. Turns out some concurrent collection was causing lock contention.
-
!rant
Does ayone knows of a
+ Good
+ Open Source
+ Free
Data test generator tool?
I'm on my first work with a development that will go to production, and I'd like to test performance, UI and all of that with random generated data. I know about dbSchema but it's trial pulls me back -
Do you know why I like to develop for iOS?
Cause I enjoy the challenge of making shitty hardware run faster.2 -
The feeling when you choke your code with cython so much that you manage to get under a single second from almost 2s per quite a lot of calculations with already optimized code.
Another X-mas came! -
Hi, in my JS project I have to update a variable value that is getting a text input's value in order to use it dynamically with different functions across my program. What would be the best approach to doing this?
Should I make a function that updates the variable for every character typed or should I simply get the value when the function is called?
Thanks!2 -
Hey guys, maybe you can help me out. I have wasted more time than I care to admit looking for a performant web socket solution. I want something that I can build on for several planned projects. Need high performance, low resource requirements and good stability. I don't trust server side JS.
I am very guilty of premature optimization.
I saw someone recommending Nchan, a addon to Nginx. Sounded good to me. Got it built and running. But it turned out in my initial tests that it ate CPU like crazy with just a few connections. Wasn't overly stable either. Everyone in the field claims great performance but few seems to deliver. Since I have been looking at Go based solutions because it's a language I know and it seems more promising for this than PHP.
Well the Go scene for web sockets is confused. The Gorilla ws does appearently not support concurrency, rather weak for a Go package. I tried others, like gobwas. Seemed good. Got it working but it won't work with SSL. So useless to me despite much promise. Most solutions I can find are maintained by just one or two people.
Anyone has any good advice? -
Hey fellow c++ devs, i have a question. I am currently working for a company that has a system with more than 300 000 thousand lines of maintained code and it is written in C++03. A lot of it utilises boost and custom performance work arounds and migration is currently out of the question, but I would really love to see some Cpp11 sugar in the code-base. I know there might not be too much business value to this potential endevour, but what do you think?1
-
Working all day long on a new feature to resolve a perf issue but realised at 6pm only that everything was pointless. I love my job
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