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commit: 839ab46be1777e5886da28b98b53a462b992c5bf |
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Author: Pin-yen Lin <treapking <AT> chromium <DOT> org> |
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AuthorDate: Fri Nov 25 03:36:27 2022 +0000 |
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Commit: Zac Medico <zmedico <AT> gentoo <DOT> org> |
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CommitDate: Mon Nov 28 00:37:41 2022 +0000 |
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URL: https://gitweb.gentoo.org/proj/portage.git/commit/?id=839ab46b |
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|
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Add caching to _slot_operator_check_reverse_dependencies |
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|
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Add lru_cache to speed up the running time of "Calculating |
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dependencies". |
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|
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In a ChromeOS use case, this patch decreases the running time from |
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311s to 197s with almost no memory usage increase. |
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|
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Bug: https://bugs.gentoo.org/883071 |
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Signed-off-by: Pin-yen Lin <treapking <AT> chromium.org> |
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Signed-off-by: Zac Medico <zmedico <AT> gentoo.org> |
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|
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lib/_emerge/depgraph.py | 1 + |
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1 file changed, 1 insertion(+) |
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|
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diff --git a/lib/_emerge/depgraph.py b/lib/_emerge/depgraph.py |
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index bb0824324..d0ea92ad9 100644 |
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--- a/lib/_emerge/depgraph.py |
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+++ b/lib/_emerge/depgraph.py |
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@@ -2240,6 +2240,7 @@ class depgraph: |
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|
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return None |
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|
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+ @functools.lru_cache(maxsize=100) |
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def _slot_operator_check_reverse_dependencies( |
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self, existing_pkg, candidate_pkg, replacement_parent=None |
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): |
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