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Town, station and industry directory window sorting performance improvements #7914

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@JGRennison
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@JGRennison JGRennison commented Jan 7, 2020

Avoid unnecessary resorts of the town and industry directory windows due to population and production changes respectively, when the current sort mode does not depend on the town population or industry production.

Avoid regenerating town, station and industry name strings on every sort comparison and on every town name filter.
Measurements of the time taken to sort the town directory window on a 4k x 4k map indicated a reduction in sort time of between 7.5x and 11x.

@JGRennison JGRennison changed the title Directory list window sort perf improvements Town, station and industry directory window sorting performance improvements Jan 7, 2020
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@nielsmh nielsmh left a comment

Overall, yes please :)

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@JGRennison JGRennison force-pushed the directory-list-window-sort-perf-improvements branch from 9716e42 to d1b8c3f Jan 7, 2020
LordAro
LordAro approved these changes Jan 8, 2020
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@LordAro LordAro left a comment

LGTM

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@JGRennison JGRennison force-pushed the directory-list-window-sort-perf-improvements branch from d1b8c3f to 7394549 Jan 9, 2020
@LordAro LordAro merged commit 87700bf into OpenTTD:master Jan 12, 2020
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4 participants