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std: Cache HashMap keys in TLS #33318

Merged
merged 1 commit into from
May 20, 2016
Merged

std: Cache HashMap keys in TLS #33318

merged 1 commit into from
May 20, 2016

Commits on May 19, 2016

  1. std: Cache HashMap keys in TLS 

    This is a rebase and extension of rust-lang#31356 where we cache the keys in thread local
storage. This should give us a nice speed bost in creating hash maps along with
mostly retaining the property that all maps have a nondeterministic iteration
order.

Closes rust-lang#27243
    @alexcrichton
    alexcrichton committed May 19, 2016
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