Unity 101 - Using the Unity Profiler to optimize performance

Check out the Course: bit.ly/3i7lLtH
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Learn how to use the amazing Unity3D profiler in just a few minutes. We'll go over a sample project built to show the profiler at it's best, then start profiling and tuning a real project.
More Info: unity3d.college
Join the FB Group: unity3d.group

[@jonavuka]

Never knew logs had such a big impact thanks for the tip

[@Unity3dCollege]

You're very welcome !:)

[@chlasma]

@@Unity3dCollege do the logs even effect the build? developing for oculus quest and am curious. Thanks

[@DANLi_]

To anyone wondering, Profiler window has been moved to Window > Analysis > Profiler

[@kapkoder4009]

Its safe to say Jason Weihmann is such an amazing teacher, very relaxed, understands what he's talking about, very good at explaining leaving out useless fancy words, always using amazing examples, now im using the profiler to get some get amazing information.. thanks!

[@biscotttii]

Loved the tutorial. Everything is concise. A small suggestion, I think you should add a seizure warning or something similar at the start of the video for the rapid changing cubes.

[@TuneForgeMusic]

You can add: #if UNITY_EDITOR Debug.Log("Debug message"); #endif and debug messages will only play in the editor. Still a good idea to delete them before a final build though. :D It's also important to note that the Profiler itself will drop your framerate a lot, so if you're watching frames and can't find what the issue is, try running without the profiler!

[@Desoxi90]

In most projects which use the logger to create custom bug reports that would not be an option as it completely cuts it out of the project once its built. Thats why its better to use some kind of global bool via scriptable objects or whichever controller you like in your project to check that bool and determine if a log should be written or not. For example: if(logEnabled) { Debug.Log("SomeMessage"); } With Applocation.logMessageReceived its then pretty handy to create bug reports for the devs.

[@TuneForgeMusic]

Good to know -- I've only ever done solo dev and me + artists, so I've always just turned debugging stuff off and on!

[@sssncodesstuff3364]

just create simple logger class and log thru that, you check some bool or compile constant there and when you will later need more control you can just add some parameter (like "level") to decide what will be logged where (dev build, release build, editor) etc, you can even keep lot of different logs in the game and swicthing them on/off like that during gameplay in editor depending on what you need to see.

[@shubhamshetkar4406]

can you create video on optimizing and reducing the apk size of Tower Defense Template by Unity?

[@BinaryAbyssinia]

Thanks a lot you are a Unique teacher and What is Editor loop? is like 99% when i check my code?

[@Fireball_Roberts]

Thanks man. This was really helpful.

[@Max-mn1yx]

this was so helpful, thanks!

[@piotrw3366]

Great video. I really like the way you present an example in every video.

[@balancecenter5924]

Thanks for the tips M8, much appreciated

[@glowurms4822]

Very Nice! The profiler was a big help for my project, but I didn't know about the deep profliling option. I had to guess at was taking up the most time. I was able to improve performance by guessing, but I'm gonna have to go back and check to make sure I was correct :D

[@originalvirgo1]

Such good info. This will help a lot, thanks.

[@muzboz]

Excellent, thanks. :)

[@deivid-01]

This video is just focus in code profiling It would be nice see another aspects like rendering to check out

[@kimeiga]

amazingly useful walkthrough!!

[@TunaynaGab]

thank you for the video - altho please give a content warning or any of the sort to warn regarding the flashing colors. I don't have any epileptic issues but it was a little visually irritating (like a bit headache inducing). Overall tho thank you for the insights

[@YAS-vm8ko]

I wonder what are these "others" part in CPU. My game's 80% is losing time with "others"

[@marcosssocram]

Thank you very much, good sir. These are very helpful :D

[@sagonsachetan1295]

but on 2020 how to increase it's memory allocation

[@nishchhalbakshi2723]

Can you please make a video explaining the snake vs blocks game snake movement, there is no post on the Internet to help!!!!!

[@TW-bh2mi]

Can you say what the other is in the profiler. it hogs up more resources than anything else

[@IRONREBELLION]

Perfect man! is there anything deeper you van learn about this boy that we dont know? I would LOOOOVE a deeeper longer video of this thing

[@aussieraver7182]

Amazing!

[@ashtwenty12]

Useful thank you

[@CanalDojogames]

do you have an video testing on Android/apple mobile?

[@DanPos]

This could have really done with an epilepsy warning before the cubes started flashing.

[@fabiencrescent6503]

I was searching for that comment

[@ChickenSkit]

i bet you dont even have epilepsy

[@TheZCGamer]

Didn't know Dan Harmon did Unity tutorials.

[@ajusay74]

Is Debug.Log affects memory?

[@glowurms4822]

I'm not sure about memory, but it definitely performs slowly. The more you output to Debug.Log the slower your game will go. It's better and much faster in my experience to create a UI and output your debug data to it if you're just looking for quick stats and don't need a log history.

[@Unity3dCollege]

It will add to the GC alloc.

[@Sky_4ai]

nice

[@Suyaashchavann]

what is the Gfx.wait for present in profiler ?? it is causing spikes lag in the rendering panel!

[@ariluft9774]

Get Component in Update function, are you crazy?

[@eugkra33]

They must have revised it all. Mine looks nothing like this.

[@Unity3dCollege]

They changed the default view to timeliness. Its a drop down in the profiler

[@logan4179]

Has the overview window disappeared? I can't find it on 2019.

[@alijumc]

Not all categories have these options in the overview window. Choose CPU Usage and you see it. It takes me 10 minutes to figure out.

[@sahilhadke]

Why are candle sticks in the thumbnail?

[@ridhawritescode]

FLASH WARNING THE CUBES CHANGE COLORS QUICKLY BE AWARE. Nice tutorial though.

[@epicrelaxingambientmusic8342]

could you help me fix mine

[@FeelingShred]

Anything similar for Cities Skylines? Awful memory management there... I managed to run the game in a fan-less laptop from 2009 with minimum specs for the game, keeping temperatures low with the help of the parameter "-limitfps 10" and keeping CPU fixed at the lowest frequency. But now I stumbled across this "out of memory" problem, and I wanna figure out if I can downgrade the assets used by the game, because according to the developers a single road vehicle can have a few hundred polygons. For a game of such big scope as a city builder, I find this beyond reckless and unnaceptable. People with 32 GB of memory are having problems with this game, this is insane! I'm glad I didn't spend a buck upgrading hardware to play a game that crashes no matter what.

[@michaelberna987]

Seizure cubes. ;D

[@haithammahmoud6825]

it's not same as 2018

[@friedunicorn]

thank you for making such helpful, clear, in-depth yet concise videos. my favorite unity channel on youtube!!!

[@Unity3dCollege]

thank you for the kind words :)

[@adventuresingamedevelopment]

Please add epilespy warning

[@muzboz]

This video really gave me the abilities to optimise my project super effectively. I just went from "Not knowing how to use the Profiler at all" to "Wow, I just completely fixed the 3 most naughty uses of time and memory allocation in my project". THANKS!

[@FarazKhanDev]

Very helpful and informative video, as always. Thank you

[@macleodgordon]

Jason, how did you get that bottom panel called 'Overview' to display. I don't see it by default when I bring up the Profiler.

[@rajmishra6769]

I never knew there was a tool such as profiler and how important it is for game development.I know shame on me, but thanks for the great video,you got yourself a subscriber today.Keep making such insightful videos.

[@despondentbosco]

So incredibly useful! Thanks for sharing.

[@acemoistman]

Awesome!!