Issue #20194 has been updated by naruse (Yui NARUSE).
Backport changed from 3.0: UNKNOWN, 3.1: REQUIRED, 3.2: REQUIRED, 3.3: REQUIRED to 3.0:
UNKNOWN, 3.1: REQUIRED, 3.2: REQUIRED, 3.3: DONE
ruby_3_3 23bfe6218a690bbde5143e26bc6fb243347fb4b3 merged revision(s)
b14674b236445fb70f484603e678722760f678f4.
----------------------------------------
Bug #20194: Memory leak with TracePoint on bmethod
https://bugs.ruby-lang.org/issues/20194#change-107350
* Author: peterzhu2118 (Peter Zhu)
* Status: Closed
* Backport: 3.0: UNKNOWN, 3.1: REQUIRED, 3.2: REQUIRED, 3.3: DONE
----------------------------------------
GitHub PR:
https://github.com/ruby/ruby/pull/9614
When disabling the TracePoint on bmethod, the hooks list is not freed.
For example:
```ruby
obj = Object.new
obj.define_singleton_method(:foo) {}
bmethod = obj.method(:foo)
tp = TracePoint.new(:return) {}
10.times do
100_000.times do
tp.enable(target: bmethod) {}
end
puts `ps -o rss= -p #{$$}`
end
```
Before:
```
18208
22832
26528
29728
34000
37776
40864
44400
47680
51504
```
After:
```
16688
17168
17168
17248
17696
17760
17824
17824
17856
17920
```
--
https://bugs.ruby-lang.org/