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GitHub - frectonz/parenv: Environment variable parser with a clap style derive macro and elm style error reporting.
Environment variable parser with a clap style derive macro and elm style error reporting. - GitHub - frectonz/parenv: Environment variable parser with a clap style derive macro and elm style error...
![From the quoted Cloudflare Blog
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Using Box<[T]> solves both problems. It can’t grow after creation, so it doesn’t need a capacity field or reserve space for future elements. The same applies to String, which also carries a capacity field. Box<str> drops it.
Each cache entry stores 8 Vec and String fields. Replacing them with Box<[T]> and Box<str> saves 8 bytes per field, 64 bytes per entry. It also eliminates the excess heap memory that Vec reserves for future growth. The combined savings add up to over 15 terabytes with over 250 billion cache entries.](https://cdn.bsky.app/img/feed_thumbnail/plain/did:plc:ithkhkqhgrpew6b4obhfdw4p/bafkreige7rohbqzvro6tkmvtkhbs7jdm7b4pxsmsq5n2uicnmpgnsy2yma)
