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io::println allocates on the GC heap #3558

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pcwalton opened this issue Sep 23, 2012 · 3 comments
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io::println allocates on the GC heap #3558

pcwalton opened this issue Sep 23, 2012 · 3 comments
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I-slow Issue: Problems and improvements with respect to performance of generated code.

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@pcwalton
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This is pretty bad. It's due to boxed traits.
@jruderman
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Will #3157 fix this?

@catamorphism
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This is still true, but should be easy to fix. Nominating for milestone 5, production-ready.

@graydon
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graydon commented Jun 20, 2013

dupe / completely-absorbed-by #4248

@graydon graydon closed this as completed Jun 20, 2013
bors pushed a commit to rust-lang-ci/rust that referenced this issue May 15, 2021
@topecongiro
Merge pull request rust-lang#3558 from bash/unstable-tests
421ed94 
Add option to run a test only on nightly
RalfJung pushed a commit to RalfJung/rust that referenced this issue May 4, 2024
@bors
Auto merge of rust-lang#3558 - RalfJung:unsupported, r=RalfJung
58efad4 
update 'unsupported' message

Instead of "the interpreter", just say Miri.

Also be a more more clear about what is expected to be supported and what not (Cc rust-lang/miri#2325).
RalfJung pushed a commit to RalfJung/rust that referenced this issue May 4, 2024
@bors
Auto merge of rust-lang#3558 - RalfJung:unsupported, r=RalfJung
fd15dc3 
update 'unsupported' message

Instead of "the interpreter", just say Miri.

Also be a more more clear about what is expected to be supported and what not (Cc rust-lang/miri#2325).
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@graydon @pcwalton @catamorphism @jruderman