Cache the QueryState used to drop swapchain TextureViews#11781
Merged
alice-i-cecile merged 3 commits intobevyengine:mainfrom Feb 9, 2024
Merged
Cache the QueryState used to drop swapchain TextureViews#11781alice-i-cecile merged 3 commits intobevyengine:mainfrom
alice-i-cecile merged 3 commits intobevyengine:mainfrom
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alice-i-cecile
approved these changes
Feb 8, 2024
JMS55
approved these changes
Feb 8, 2024
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Objective
While profiling around to validate the results of #9172, I noticed that
present_framescan take a significant amount of time. Digging into the cause, it seems like we're creating a newQueryStatefrom scratch every frame. This involves scanning the entire World's metadata instead of just updating its view of the world.Solution
Use a
SystemStateargument to cache theQueryStateto avoid this construction cost.Performance
Against
many_foxes, this seems to cut the time spent inpresent_framesby nearly almost 2x. Yellow is this PR, red is main.