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Found in

2020.1.0b12

2020.1.15f1

2020.2

2021.1

2021.2

Issue ID

1302224

Regression

Yes

[Windows] Compilation times on the Windows Editor are noticeably slower than on the OSX Editor

Scripting

-

How to reproduce:
1. Open the user's attached "CompileTimeIssue" project
2. Open the Editor Iteration Profiler (Window->Analysis->Editor Iteration Profiler->Show Window)
3. In the Editor Iteration Profiler at the top make sure that "Deep Profile" and "Enable" options are enabled
4. In the Project window go to the Assets/Scripts folder
5. Right-click on the "DeviceSimulatorSystemInfoHack.cs" script and select Reimport
6. After it finishes in the Editor Iteration Profiler observe Iteration Event 1 (ScriptCompilation)->Script Compilation->Assembly-CSharp.dll / Assembly-CSharp-Editor.dll

Expected results: Times are below 10000 ms
Actual results: Times are up to 10000 ms, can reach up to 90000 ms

Reproducible with:2020.1.0b12, 2020.17f1, 2020.2.2f1, 2021.1.0b2, 2021.2.0a1
Could not test with: 2018.4.30f1, 2019.4.18f1, 2020.1.0b11

Notes:
- On a mac, we couldn't get times above 10000ms
- Machines used for testing:
MacBook Pro (15-inch, 2016), 2.7 GHz Quad-Core Intel Core i7, 16 GB 2133 MHz LPDDR3 times were all below 10000 ms
Windows 10, Intel i9-10940X @ 3.30GHz, NVIDIA GeForce RTX 2070 Super, 64 GB 2666 MHz lowest times were just above 10000 ms reaching up to 90000 ms

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