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Upgrade to rustc 1.36.0-nightly (e305df184 2019-04-24)

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This includes a `size_of` regression for a few DOM types,
due to https://github.com/rust-lang/rust/pull/58623 which replaces the
implementation of `HashMap` in the standard library to Hashbrown.

Although `size_of<HashMap>` grows, it’s not obvious how total memory usage
is going to be impacted: Hashbrown only has one `u8` instead of one `usize`
of overhead per hash table bucket for storing (part of) a hash,
and so might allocate less memory itself.

Hashbrown also typically has better run time performance:
https://github.com/rust-lang/hashbrown#performance

Still, I’ve filed https://github.com/rust-lang/hashbrown/issues/69
about potentially reducing the `size_of<HashMap>` regression.
This commit is contained in:
Simon Sapin 2019-04-25 13:52:04 +02:00
parent 07d1559141
commit 51d6b6350e
4 changed files with 22 additions and 22 deletions
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