diff options
author | tenderlove <tenderlove@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2016-09-12 15:40:09 +0000 |
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committer | tenderlove <tenderlove@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2016-09-12 15:40:09 +0000 |
commit | c4c53310c23d913c1ff25863f1d9f7332b548f51 (patch) | |
tree | bd9e8449c51bba80d8ba40ddfc042704e417ee25 /class.c | |
parent | fd8fa1b29927918a40518481965735dc57a53811 (diff) | |
download | bundler-c4c53310c23d913c1ff25863f1d9f7332b548f51.tar.gz |
Copy the serial number from the super class to the singleton class
This helps hit inline method caches more frequently. Before this
commit:
```
[aaron@TC ruby (trunk)]$ time ./ruby -v benchmark/bm_vm2_poly_singleton.rb
ruby 2.4.0dev (2016-09-12 trunk 56141) [x86_64-darwin15]
real 0m3.679s
user 0m3.632s
sys 0m0.022s
```
After this commit:
```
[aaron@TC ruby (trunk)]$ time ./ruby -v benchmark/bm_vm2_poly_singleton.rb
ruby 2.4.0dev (2016-09-12 trunk 56141) [x86_64-darwin15]
last_commit=Copy the serial number from the super class to the singleton class
real 0m2.246s
user 0m2.203s
sys 0m0.020s
```
[Feature #12364]
[ruby-core:75425]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@56144 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'class.c')
-rw-r--r-- | class.c | 2 |
1 files changed, 2 insertions, 0 deletions
@@ -1591,7 +1591,9 @@ singleton_class_of(VALUE obj) klass = RBASIC(obj)->klass; if (!(FL_TEST(klass, FL_SINGLETON) && rb_ivar_get(klass, id_attached) == obj)) { + rb_serial_t serial = RCLASS_SERIAL(klass); klass = rb_make_metaclass(obj, klass); + RCLASS_SERIAL(klass) = serial; } if (OBJ_TAINTED(obj)) { |