Jobs performance is slower than normal gameobject workflow

[stiff nova]

Hello, Ive been following the dots course on Unity learn (https://learn.unity.com/tutorial/65b3de6bedbc2a59a499d5b9?uv=2022.3&projectId=65b3d3cfedbc2a5399ce3740#)
I completed part 5(Find each Seeker’s nearest Target with a single-threaded job) of module 2(Get started with Unity's Job System)

Every code I implemented is just a copy paste from the website and followed the course strictly without altering anything.
While profiling the performance difference, I find the normal gameObject workflow takes ~450ms to run a frame while single threaded job takes ~1000ms to run a frame. The website claims 340ms for normal gameobject workflow and 30 ms for single threaded job. Even when burst is enabled, my game runs in 19 ms while the website claim to run in 1.5ms. Im using 2022 lts version
Im running 32Gb Ram intel 13th gen i9 with rtx 4080

[teal torrent]

showing profiler data would explain things

[stiff nova]

With gamObjects

With Single threaded job

[teal torrent]

first of all - you don't use burst

then - you aren't really using jobs. YOu are completing job on main thread practically

so benefit of jobs here is negative

(in this specific example)

[stiff nova]

Im not using burst indeed. I wanted to check if a single threaded job without burst provide any performance boost

But you can see the worker 1 is busy executing. How exactly do I complete a job in a job thread?

[teal torrent]

you don't force main thread to wait for it

that's it

[stiff nova]

ah

[teal torrent]

at least, not until you schedule enough jobs

[stiff nova]

But how do I do it?

[teal torrent]

in which case main thread would wait for hundreds of jobs to finish

[teal torrent]

by writing nice project architecture that utilizes jobs well 😅

(or using Unity ECS at advanced level)

but anyway

I think your job is written awfully

that's why it's so much slower

2x slower is really bad

I didn't follow this tutorial, so no idea what it has

[stiff nova]

this is a copy paste from Unity learn website. I made zero code changes. There is a vast difference from what the website claim and what I experience

[teal torrent]

well, I believe they use burst

which makes a massive difference

[stiff nova]

They use burst later. I use burst and managed to run a frame in 19ms but they claim 1.5ms

[teal torrent]

they use burst

not later, but in this exact part

green in profiler means burst

[teal torrent]

you mentioned 1.5ms - they only got it with burst

[stiff nova]

Thats what I said

1.5ms with dots. 30ms with just job and no burst. 300 ms for normal gamObject workflow

[teal torrent]

dots != burst

[stiff nova]

ah i meant burst sorry

[teal torrent]

show more of profiler

[stiff nova]

1.5ms with burst and single threaded job

[teal torrent]

I'm curious as well, why it's so much slowe