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yakra / DataProcessing

Data Processing Scripts and Programs for Travel Mapping Project
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sizeof(WaypointQuadtree) -> 128 #247

Open yakra opened 1 year ago

yakra commented 1 year ago

Replace the 4 FOO_child pointers with 1 child or children pointer. This gets sizeof down to 128, 2 cache lines' worth. Alignas(64).

When refining, aligned_alloc space for 4 nodes, then use placement new to init.

yakra commented 1 year ago

Only tangentially related, just dropping this here... https://github.com/yakra/DataProcessing/blob/80f27243bf26579c53c6c7a215a5aeb22347317a/siteupdate/cplusplus/classes/WaypointQuadtree/WaypointQuadtree.cpp#L12

LOL this has compiled & run fine for years, never any warnings.