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| author | John Hawthorn <john@hawthorn.email> | 2019-11-21 11:05:48 -0800 |
|---|---|---|
| committer | Aaron Patterson <tenderlove@github.com> | 2019-11-22 12:42:24 -0800 |
| commit | 8e743fad4e9124bd59bb5f14473cb188db9d3c34 (patch) | |
| tree | 87f0c9f44b45c746ef45b5bf0c9ce9615f0200b2 /COPYING.ja | |
| parent | 26fd8d962ce42b7eb8d1c1eb43ddfa1ff24dc3aa (diff) | |
Count pinned slots using only bitmap
This is significantly faster than checking BUILTIN_TYPEs because we
access significantly less memory. We also use popcount to count entire
words at a time.
The only functional difference from the previous implementation is that
T_ZOMBIE objects will no longer be counted. However those are temporary
objects which should be small in number, and this method has always been
an estimate.
Notes
Notes:
Merged: https://github.com/ruby/ruby/pull/2688
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