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4
Question by Raffin · Aug 11, 2015 at 06:26 AM · touchlagprofilerfirstspike

EventSystem.Update() lag spike in profiler on first call

From what I have read, the EventSystem only loads on the first call. Is there a way to load it during the splash screen so I do not have a stutter on the first tap/click? Cheers.

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avatar image stepan-stulov · Aug 11, 2015 at 07:47 AM 0
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Not sure how it works exactly, but here is a stupid idea. If the first call is slow, make all the meaningful calls starting from the second. $$anonymous$$ake first flush call with an empty listener.

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Answer by roointan · Feb 16, 2020 at 12:04 PM

In my case, it was a call to DateTime.Now somewhere deep in the methods that was slow! take a look at this: https://issuetracker.unity3d.com/issues/ios-il2cpp-system-dot-datetime-dot-now-is-slow-on-the-first-run I replaced the code with Time.time and it's fixed now.

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