libplugin-pay: use map for channel hints #7726
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For nodes with many channels this is a tremendous improvement in pay performance. PR ElementsProject#7611 improves payment performance from 15 seconds to 13.5 seconds on one of our nodes. This commit improves payment performance from 13.5 seconds to 5.7 seconds. Changelog-Fixed: Improved pathfinding speed for large nodes.
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For nodes with many channels this is a tremendous improvement in pay performance. PR #7611 improves payment performance from 15 seconds to 13.5 seconds on one of our nodes. This commit improves payment performance from 13.5 seconds to 5.7 seconds.
Changelog-Fixed: Improved pathfinding speed for large nodes.
Replaces #7648
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