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K d3c198678c
reorder fields to shrink struct TerrainTile from 96 to 80 bytes
When I was playing a very large map, computer's turn took up to 2 minutes and that give me time to fire up perf and profile the code while waiting.

I noticed that 1.7% of time was spent in function CPathfinderHelper::getNeighbors and half of that on a single load from an array backing multi_array of TerrainTiles. That signals the CMap::terrain is too big to fit in CPU caches.

This patch reorders fields in TerrainTile struct, shrinking it from 96 bytes to 80 bytes and hopefully helping to keep more tiles in the cache and speeding things up a little bit.
2024-07-07 12:53:29 +00:00
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