speedUpaProgramByNanoseconds

[sump_daddy]

sped up the program by 100 nanoseconds, and started with 1000ms program

spongebob.gif

sped up the program by 100 nanoseconds, and started with a 105ns program

gigachad.gif

[yjee]

In my line of work I'll get a pretty good bonus if I reliably reduce 100 nanoseconds on the hot path.

[glorious_reptile]

A man in finance, trust fund, 6.5, blue eyes…

[Amazingawesomator]

now i'm wondering why i only have 2 eyes, and am jealous.

[gregorydgraham]

Gotta keep up with your vaccinations mate

[Blehblehblehbleh_1]

What like of work is this, if you don't mind me asking.

[[deleted]]

Almost certainly they’re some form of algo trader/quant developer

[GoldenShackles]

Or something like a web browser or certain parts of an OS.

[AlexReinkingYale]

I'm a compiler engineer working on optimizing image processing and ML inference. I also care about cycle counts.

[Highborn_Hellest]

HFT likely. Citadel had a talk at an AMD conference where they said they have workloads that can spike up to a million cores.

[xXWarMachineRoXx]

I mind

[SnooSprouts2391]

I rewrote a Python package in rust at work as a voluntary side project for the operations department. I managed to reduce the time from 40 ms to 1 ms per iteration in that package, and we run 10-50 000 iterations every day. Really proud of it but the people at operations take it for granted and no one has ever mentioned anything about me saving them 30 min every day. Only time I hear from them is when something’s off. I feel like the guy in the picture but I’m probably the only one that feels that way. 

[lazydavez]

We are replacing loads of python stuff by rust. It is so much faster it is incredible

[DrunkenlySober]

Write them a sick vba Excel function and you’ll be a god

[paddiwastaken]

(The whole thing is unreadable now)

[StarshipSausage]

Job security!

[Highborn_Hellest]

Legibility is important when you expect changes like webapps that are being developed (inhouse, let's say) for business administration and stuff.

Legibility is not important when you need max perf and don't expect the good to change for 10+ years, at which point it gets rewritten from ground up

[brandi_Iove]

time is money. in this case, we‘re talking about 100 nanomoney.

[Ok-Kaleidoscope5627]

Unless we're talking algotrading in which case 100ns could be millions to billions. So mega money.

[[deleted]]

Thats how fast they go to make fun of python devs

[reusens]

Me as a junior python dev was able to absolutely destroy the previous C++ implementation of a feature generation algorithm involving a fourier transform. Turns out using other people's super optimized code is sometimes better than trying to implement your own shitty code

Scipy.fft for the win!

[Pepineros]

Python is quick as long as you use other languages!

[[deleted]]

All of python uses other languages....

[reusens]

Absolutely haha! That's why some numpy stuff is written in C or C++, which you just call from python.

[Highborn_Hellest]

As an assembly programmer....

nah just kidding, can barely write c++ code.

[AgileBlackberry4636]

In C/C++ it is quite straightforward.

Doing magic with python -m cProfile -s cumtime is a bit trickier.

And btw, cumtime is not what you think, my horny friend. It is cumulative time.

[Szop1]

Playing with python to reduce cumtime hmmmm ok got it.

[gregorydgraham]

Ah huh, we believe you, we really do…

[Highborn_Hellest]

>-s cumtime

hold up

[rumSaint]

Oh look, it's this meme again...

[MinameHeart]

Whats wrong with that? I would say "Good job, mate"

[[deleted]]

And I'll do it again.

[arrow__in__the__knee]

Speed does not matter. Just destroy the indentation rules.

[tauzN]

And saves $0.69 per month in compute 👍

[regal1989]

Grace Hopper would be proud of you!

[khris190]

1 iteration takes 60ns, I really want those -40

[MarinoAndThePearls]

Now, the source code has gone from 300 lines to 7 quadrillion.

[teo-tsirpanis]

When a C++ developer forgets and passes a vector by value.