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Reduce component rendering and eager-loading overhead - #2760
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Reduce rendering and eager-loading overhead based on Vernier profiles, without changing benchmark workloads. Simplify compiled-cache and HTML-safety checks, reuse empty output and boot-time path parsing, and avoid unnecessary collection iterators and template/ancestor checks.
Measured with
performance/measure.rbandperformance/compare.rb, pooling three runs of 15 passes per version on Ruby 4.1-dev / Rails 8.1.4. Lower ratios are better: render time relative to partials, and ViewComponent boot time relative to the rest of boot.Boot allocations decrease from 1,441,538 to 1,381,521. Includes regression coverage and a changelog entry.