Browser & Web Performance · Senior · Question 21 of 75

How can garbage collection affect INP?

1GC runs only when the tab is in the background
2GC runs on the GPU and has no effect
✓Correct answer: Creating many short-lived objects during interactions leads to GC pauses on the main thread that add to latency

Explanation

Modern GCs are mostly concurrent, but allocation-heavy handlers still cause pauses. The Memory and Performance panels show them.

Further reading

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