Switching from class to class sometimes is slow
オープン
devtools app performance
memory > diff
P2
screen: memory
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説明
On the memory diff tab, after taking a snapshot, pretend we have classes A and B.
Selecting class A performs computation to calculate the set of retaining paths for to A. Then selecting class B, does the same thing for all the retaining paths of class B. Selecting class A again should be fast, since we have already performed this work. But it appears to take equally as long to compute the set of retaining paths. I suspect we are not caching this computation.
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