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| author | Jean Boussier <jean.boussier@gmail.com> | 2022-02-23 16:51:28 +0100 |
|---|---|---|
| committer | Jean Boussier <jean.boussier@gmail.com> | 2022-02-23 16:58:48 +0100 |
| commit | b8f0dc59d52266d9fbfc039e2f4b0f727c62baa0 (patch) | |
| tree | b0e58ad641ebdb7d7bd8984d9ae7e2014a998210 /spec/ruby/core/array/pack/shared/float.rb | |
| parent | 651b2e59598427edd0ec3ceb3a0a49b5e106a145 (diff) | |
rb_provide_feature: Prevent $LOADED_FEATURES from being copied
[Bug #18599]
`vm->loaded_features` and `vm->loaded_features_snapshot` both share the
same root. When a feature is pushed into `loaded_features`, the sharing
is broken and `loaded_features` is copied.
So an application requiring 1000 files, will allocate 1000 arrays of
increasing size, which is very wasteful.
To avoid this, we first clear the snapshot, so that `loaded_features`
can directly be pushed into.
Co-Authored-By: Peter Zhu <peter.zhu@shopify.com>
Notes
Notes:
Merged: https://github.com/ruby/ruby/pull/5593
Diffstat (limited to 'spec/ruby/core/array/pack/shared/float.rb')
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