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Game freezes when you search for a beatmap in the carousel with the search bar
See original GitHub issueDescribe the bug: Not sure if it’s related to my large number of beatmaps in the carousel, but something has changed recently which seems to reduce performance when searching for a beatmap in the carousel with the search bar.
Screenshots or videos showing encountered issue:
- previous version:
2021.109.0
osu!lazer version: 2021.118.1
(The logs don’t seem to give any information about it)
Issue Analytics
- State:
- Created 3 years ago
- Reactions:4
- Comments:9 (3 by maintainers)
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Preliminary investigation shows that this was caused by the switch to .NET 5, and potentially a different pathway being used for
IndexOffor better unicode support (presuming that’s what ICU stands for…?)https://github.com/dotnet/docs/issues/18423 https://github.com/dotnet/runtime/pull/34645
Code specifically:
https://github.com/dotnet/runtime/blob/69f260eff523bc16c8a95c232e4816b3a1764e88/src/libraries/System.Private.CoreLib/src/System/Globalization/CompareInfo.cs#L1117-L1120
This would imply that this has only ever been faster on windows (due to other platforms preferring ICU previously?). Still a cause for concern…
Further investigation: this is being tracked https://github.com/dotnet/runtime/issues/40942 (the most recent comment shows some improvements have been make for net 6.0) more specifically https://github.com/dotnet/runtime/issues/37815
It is feasible to disable ICU on windows to get back the performance short term, but probably not worth it? If anything, this says that we need to make this flow asynchronous in the future (which is something I already planned on visiting when switching this code across to realm).
Yes, I have noticed this. I suppose I should’ve changed my wording- I just wanted to see if this was still being addressed, and it seems to be. This is the one thing stopping me from switching to osu!lazer as my main client.
Thanks for everything ppy!