Hi, I am exploring Elephant/BDB as a backend for a video game I am writing. I have ignored performance considerations so far, but on some larger maps (around 100 objects), performance is abominably slow (around 5 fps). The same maps run about 10 times faster (about 50 fps) when using completely in-memory hash-tables.
Based on profiling, it appears that the main bottleneck is persistent slot lookup. I remember reading that Elephant reads from file on every slot read, which could explain this result. Are cached slots usable yet (at least in a single-threaded situation)? When I use ":cached t" in my slot definitions, I get errors. Any other advice about optimization would be appreciated. Thanks. -- Elliott Slaughter "Any road followed precisely to its end leads precisely nowhere." - Frank Herbert
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