Issue #13299 has been reported by Eric Wong.

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Bug #13299: backport r57469, r57472, r57508 (garbage reduction for IO#write/syswrite)
https://bugs.ruby-lang.org/issues/13299

* Author: Eric Wong
* Status: Open
* Priority: Normal
* Assignee: 
* Target version: 
* ruby -v: 
* Backport: 2.2: REQUIRED, 2.3: REQUIRED, 2.4: REQUIRED
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This is a performance regression introduced in Ruby 2.0.0 and
maybe some folks would like it fixed in a stable release before
December 25, 2017

Thank you.




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