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| author | Marc-Andre Lafortune <github@marc-andre.ca> | 2020-12-22 21:29:00 -0500 |
|---|---|---|
| committer | Hiroshi SHIBATA <hsbt@ruby-lang.org> | 2020-12-23 18:38:27 +0900 |
| commit | a2dd8d846da9648aa74b266337429a0ab53d7bd3 (patch) | |
| tree | 140f870efc83667463f75d11e40c10f6e9e06142 /lib/psych/visitors/yaml_tree.rb | |
| parent | d4861854ecde00540c527f36aaacd257e63ed5a4 (diff) | |
| download | psych-a2dd8d846da9648aa74b266337429a0ab53d7bd3.zip | |
[ruby/psych] Optimize cache with `compare_by_identity`
Using `compare_by_identity` gives a 4x performance boost on cache hits.
Benchmark in https://github.com/JuanitoFatas/fast-ruby/issues/189
Diffstat (limited to 'lib/psych/visitors/yaml_tree.rb')
| -rw-r--r-- | lib/psych/visitors/yaml_tree.rb | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/psych/visitors/yaml_tree.rb b/lib/psych/visitors/yaml_tree.rb index 986c57b..ac6777a 100644 --- a/lib/psych/visitors/yaml_tree.rb +++ b/lib/psych/visitors/yaml_tree.rb @@ -80,7 +80,7 @@ module Psych raise(TypeError, "Can't dump #{target.class}") unless method h[klass] = method - end + end.compare_by_identity end def start encoding = Nodes::Stream::UTF8 |