Cache AlreadyInstalledCandidate #9265
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Since the "Requirement already satisfied" message is printed during candidate preparation, instantiating the candidate multiple times result in excessive logging during intensive backtracking. By caching the already-installed candidates, each package is only prepared, and thus only logged once.
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pfmoore
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Dec 11, 2020
pradyunsg
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Dec 11, 2020
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Since the "Requirement already satisfied" message is printed during candidate preparation, instantiating the candidate multiple times result in excessive logging during intensive backtracking. By caching the already-installed candidates, each package is only prepared, and thus only logged once.
Close #9117.
This does not make the resolver any faster (multiple issues can be used to track this optimisation, e.g. #9215). The patch only fixes the repetitive logging.