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[WIP]: Tweak Int64Index.reindex() performance#984
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kozlov-alexey wants to merge 2 commits intoIntelPython:masterfrom
Open
[WIP]: Tweak Int64Index.reindex() performance#984kozlov-alexey wants to merge 2 commits intoIntelPython:masterfrom
kozlov-alexey wants to merge 2 commits intoIntelPython:masterfrom
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Hello @kozlov-alexey! Thanks for opening this PR. We checked the lines you've touched for PEP 8 issues, and found:
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Motivation: current implementation of Int64Index reindex via building map_positions as a typed.Dict and filling the result indexer in a prange scales poorly and has performance that is far from ideal. This PR improves performance by ~2x by using native TBB based implementation.