From: swills@...
Date: 2015-01-17T18:58:22+00:00
Subject: [ruby-core:67658] [ruby-trunk - Bug #10686] Memory leaking from torture test of symbol GC

Issue #10686 has been updated by Steve Wills.


I have to disagree that this isn't needed to be back ported to 2.1. I just tried it with my ruby 2.1 and saw memory growing rather quickly. My ruby -v:

ruby 2.1.5p273 (2014-11-13 revision 48405) [amd64-freebsd11]


----------------------------------------
Bug #10686: Memory leaking from torture test of symbol GC
https://bugs.ruby-lang.org/issues/10686#change-51076

* Author: Charles Nutter
* Status: Closed
* Priority: Normal
* Assignee: 
* ruby -v: 2.2p0
* Backport: 2.0.0: DONTNEED, 2.1: DONTNEED, 2.2: DONE
----------------------------------------
The following code appears to grow without bounds when running on MRI 2.2p0 (and grows *very* fast...hold on to your RAM):

```ruby
x = 0; loop { (x += 1).to_s.to_sym }
```

I asked ko1 about this on Twitter and he said it appears to be leaking strings somewhere.



-- 
https://bugs.ruby-lang.org/