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Under Consideration for 2022.3.X
Votes
1
Found in
2022.3.49f1
Issue ID
UUM-98768
Regression
No
Low performance using memory allocated by UnsafeUtility.Malloc when using AMD Ryzen CPUs
*Reproduction steps:*
1. Open the attached “BugRepro” project
2. Click Window > General > Test Runner
3. Run all “Hitting_The_Wall“ tests
4. Observe the total running time of the tests
*Expected results:* Tests are finished within 1 minute
Actual results: Tests are finished in 6 minutes
*Reproduced with:* 1.8.18 (2022.3.49f1), 1.8.8 (2023.3.0a2), 1.8.17, 1.8.18 (6000.0.20f1, 6000.0.22f1)
Couldn’t reproduce with: 2021.3.44f1 (Burst is not available in 2021.3)
*Reproduced on:* Ubuntu 22.04 (AMD Ryzen 7 5800), Windows 11 (AMD Ryzen 7 5800)
Not reproduced on: Ubuntu 22.04 (Intel i9-10885H), Windows 11 (Intel Core 9-11900H)
*Notes:*
- Intel i9-10885H finishes all the tests in 51 seconds
- AMD Ryzen 7 5800 finishes all tests in 362 seconds
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