this post was submitted on 23 Apr 2024
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Programmer Humor

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[–] [email protected] -1 points 2 months ago (21 children)
[–] [email protected] 121 points 2 months ago (13 children)

In case you are serious: It's probably not.
When you're not careful with parallel processing / multithreading, you can run into something called a "race condition", where results of parallel computations end up in the wrong order because some were finished faster than others.
The joke here is that whoever "programmed" this commic is bad at parallel progmming and got the bubbles in the wrong order because of that.
The image makes perfect sense if you read it in the order 3, 1, 2.

[–] [email protected] 9 points 2 months ago (6 children)

🤦🏽‍♀️ Thanks for explaining, my brain must have corrected the race condition.

Regarding threads: I have had good experience with using thread safe queues everywhere to exchange data between threads, it's the right tool in many cases, but I doubt queues to be useful when coding for performance.

[–] [email protected] 1 points 2 months ago (1 children)

Umm, queueing is standard practice particularly when a task is performance intensive and needs limited resources.

Basically any programming language using any kind of asynchronous runtime is using queues in their scheduler, as well.

[–] [email protected] 2 points 2 months ago (1 children)

Could be I was not clear when I wrote performance, I am talking about High Performance Computing, where you want to spend all CPU cycles on solving your problem. While taking Amdal's Law into account. https://en.wikipedia.org/wiki/Amdahl%27s_law

[–] [email protected] 3 points 2 months ago

Ah gotcha, fair enough. Definitely depends on the workload. If you have compute you want to dedicate to solely to a single task, have at it.

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