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A comment on Cross-platform Rust rewrite of the GNU coreutils. Parent comment

Re:Cross-platform Rust rewrite of the GNU coreutils by andrepd on Tuesday March 22, 2016 @02:40PM (#11338840)
It will be slower, though. C is king in raw performance, and in critical areas where that does matter you don't really have a choice but to write it "by hand" (aka in C).
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Re:Cross-platform Rust rewrite of the GNU coreutils by pcwalton on Tuesday March 22, 2016 @03:45PM (#11339422)
Can you name particular areas in which C allows you to get the performance that Rust does not? Be specific.
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