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Speed up overzooming in tile-join (#147)

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* Clip away entire features by bbox. Avoid unnecessary recompression.

* Move parent tile decoding in tile-join out of overzoom proper

* An ever-growing cache of parent tiles

* Limit the size of the cache

* Remove the current reader *before* checking if we can run the queue

* Clean up

* Add missing #include

* Add comment

* When the tile-join cache fills up, evict the least recently used

* Fix microsecond math

* Factoring out tile-join's cache for testing

* Add unit tests for tile-join cache

* Update changelog and version
This commit is contained in:
Erica Fischer
2023-10-04 12:14:22 -07:00
committed by GitHub
parent 26bf08deb2
commit cc5c1c79df
11 changed files with 260 additions and 112 deletions
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Makefile
+1 -1
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@@ -73,7 +73,7 @@ tile-join: tile-join.o projection.o mbtiles.o mvt.o memfile.o dirtiles.o jsonpul
tippecanoe-json-tool: jsontool.o jsonpull/jsonpull.o csv.o text.o geojson-loop.o
$(CXX) $(PG) $(LIBS) $(FINAL_FLAGS) $(CXXFLAGS) -o $@ $^ $(LDFLAGS) -lm -lz -lsqlite3 -lpthread
unit: unit.o text.o sort.o
unit: unit.o text.o sort.o mvt.o
$(CXX) $(PG) $(LIBS) $(FINAL_FLAGS) $(CXXFLAGS) -o $@ $^ $(LDFLAGS) -lm -lz -lsqlite3 -lpthread
tippecanoe-overzoom: overzoom.o mvt.o clip.o