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Fixed in 2017.2.0f3

Fixed in 2017.2.X, 2017.3.X



Found in


Issue ID




Asset refresh times are approximately 5 times longer in Unity 2017.2.0a2 and later versions

Scene Management


How to reproduce:
1. Open the attached "SurvivalShooter" project
2. Perform a few Asset refreshes by pressing Ctrl + R (or CMD+R, if you are a Mac user) on the keyboard a few times
3. Observe Editor.Log and its Asset refresh times

Expected result: In 2017.2.0a2 and later, Asset refresh time should be around ~0.01 seconds, like in the 2017.2.0a1 and prior versions
Actual result: Asset refresh time is consistently around ~0.04 seconds in the 2017.2.0a2 and later versions

Regression introduced in - 2017.2.0a2
Reproducible with - 2017.3.0b3, 2017.2.0f2, 2017.2.0a2
Not reproducible with - 2017.2.0a1, 2017.1.1p4

Asset refresh time comparison between 2017.2.0a1 and 2017.2.0a2 versions in Survival Shooter project on Samsung SSD 850 EVO 250 GB, Windows 10 :
2017.2.0a1 -
Refresh: elapses 0.009462 seconds
Refresh: elapses 0.007476 seconds
Refresh: elapses 0.007297 seconds
Refresh: elapses 0.007508 seconds

2017.2.0a2 -
Refresh: elapses 0.040612 seconds
Refresh: elapses 0.060603 seconds
Refresh: elapses 0.039310 seconds
Refresh: elapses 0.039079 seconds

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  3. mercygaleria

    Jul 28, 2020 09:58;u=245304;u=19154;u=556429;;u=245305;;u=19155;u=556432;;u=556433;u=245302;;u=556434,,,,

  4. cozyurt_unity

    Jul 11, 2020 15:09

  5. milox777

    Nov 21, 2017 11:22

    It's not fixed, it's still too slow in latest patch release

  6. MadDave666

    Nov 08, 2017 18:48

    Same here, please fix!

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