Optimize scope lifecycle hot path#11079

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bm1549 wants to merge 3 commits intomasterfrom

brian.marks/perf-scope-lifecycle

Commits on Apr 10, 2026

Optimize scope lifecycle by skipping work when listeners empty and profiling disabled

bm1549
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claude
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Fix activeSpanLookup benchmark to exercise live scope stack

bm1549
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claude
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Cache isEmpty() results in local variables to avoid redundant volatile reads

bm1549
and
claude
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