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Comment by masklinn

1 day ago

> jemalloc was probably booted from Rust binaries sooner than the natural course of development might have otherwise dictated.

FWIW while it was a factor it was just one of a number: https://github.com/rust-lang/rust/issues/36963#issuecomment-...

And jemalloc was only removed two years after that issue was opened: https://github.com/rust-lang/rust/pull/55238

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masklinn

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Aissen  1 day ago

Interesting that one of the factor listed in there, the hardcoded page-size on arm64, is still is an unsolved issue upstream, and that forces app developers to either ship multiple arm64 linux binaries, or drop support for some platforms.

I wonder if some kind of dynamic page-size (with dynamic ftrace-style binary patching for performance?) would have been that much slower.