What is Low Latency C++? (Part 1) - Timur Doumler - CppNow 2023

[@adodge2]

I'm enjoying the talk. Really glad they went the extra mile and gave a lavalier mic to some guy in the audience with a sore throat. Really simulating the authentic in-person conference experience. Makes me want to wash my hands.

[@adodge2]

alright I got 46 minutes in and the guy in the audience started talking to himself in between clearing his throat. I'm done.

[@pogrammerinthehouse8643]

@@adodge2 😂😂😂

[@starllama2149]

It's funny coming back to this. I was in the crowd. I remember thinking the exact same thing it got really annoying. It was the front two rows of the auditorium from what I remember lol.

[@dennohpeter]

12:30

[@kevanschwitzer8585]

Fantastic talk. A nice amount of breadth and great cross-references to other materials (books, presentations, articles) for those who are interested. Note: It was extremely hard to listen to this talk due to the excessive throat clearing of the participants. Maybe some audio processing could easily clean this kinda stuff up?!

[@NickEnchev]

Am I misunderstanding something, but at 1:26:26 doesn't b[i+1] += c[i] do an out-of-bounds write in the example on the left? I know the example is about vectorization and this is unrelated, but I found it an odd that the example would have that line.

[@mehmetkose6]

Loves from Turkey, thx

[@bernadettetreual]

In Real-Time Pro Audio, you also don't process stuff in a single thread. That would be absurd. You distribute your processing to as many cores as your system has, according to what your audio processing graph allows. That works well, since your audio graph often has different tracks or devices, so not everything is as pipelined as it may seem at the start of the video.

[@wjrasmussen666]

the noise is annoying.

[@omid_tau]

Download the video then suppress the noise using AI filter

[@SamualN]

why does the audio sound so bad?

[@mindstudioentertainment5158]

sounds like the in camera audio track was left in

[@Roibarkan]

1:24:40 Eduardo Madrid’s talk from 2022 about SWAR: kzbin.info/www/bejne/eGW5qaOse71sj7s

[@jasperlanda5276]

I love Timur's talks but this mic keeps picking up three things instead of just one: Timur's voice, Timur's reverberated voice reflected in the room, and that one super annoying coughing guy.

[@dennohpeter]

[@Roibarkan]

1:24:40 Jeff Garland’s talk: kzbin.info/www/bejne/np3KdJiNeJ6drqs

[@sirhenrystalwart8303]

I wonder, does something like [[assume size % 32 ==0 ]] help promote SIMD optimizations?

[@Roibarkan]

I believe so. The common case is when ‘size’ is actually the size of an array that it being traversed, and thie assume attribute can allow the compiler to emit fewer bound-checks, and iterate over multiple items simultaneously- which leads to SIMD. This is discussed in slide 106

[@akisuihkonen7253]

It might. On clang (for arm64-v8a) I've noticed even a fixed value of `N=32` does not always lead to autovectorisation, but `size % 64 == 0` would do.

[@bearwolffish]

Should not have read the comments, did not notice the background noises till they were brought up.

[@ABaumstumpf]

[[assume false]] :) And have fun.

[@PhoenixMoonbeam]

is there anywhere this has been uploaded without the horrific perpetual background coughing and footstamping?

[@ailijic]

First example and code starts at 44 min.

[@tomfranky1744]

Timur's habit is to talk too fast about many diffenet things that may not be needed necessarily, making his talks not very advantageous to me. Most of the times they are confusing more than being simple, clear and ready to be understood.

[@abhisheksingh-li6zo]

Code starts at 45.00

[@bernadettetreual]

Disassembly on Demand… CLion invented Visual Studio, 10 years later. 🤣

[@eldarsadykov]

That damn cough!

[@TheMoQingbird]

bad sound recording

[@nativedeveloper4731]

Very nice talk. But the guy who is clearing his throat and smacking his lips into the microphone very annoying. I couldn't finish because I was really annoyed

[@Spongman]

it's 2023. who goes to a conference with a cough, ffs?

[@fuji_films]

People with a cough.

[@StereoSensation]

That's one hell of annoying crowd to present to.