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Software is slow because of bad design, not slow languages
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this post was submitted on 23 Oct 2026
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Programming
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It's mostly because of memory cache misses. JS creates a ton of closures and has a lot of context switching. JS engines are basically a modern day miracle for how fast they are but somehow webapps are still sluggish.
Memory cache hits are destroying performance? Is this profiled or just guesswork? I don't understand how that's tied to perceived performance degradation specific to web-based toolkits like Blink and Webkit