From: Martin D. <mar...@te...> - 2003-05-24 19:08:08
|
Andrea Aime a =E9crit: >>In conclusion: absolutly no speed penality on my machine (no gain >>neither), but a big save in memory usage. >=20 >=20 > Which is great anyway :-). Remember that I'm using the default tile > cache set to 16MB, this is why I get a speedup I guess. Do you see > disk activity when zooming/moving around the map? No. The MapPane initially show the whole image, which means that the=20 image is fully loaded right at the first rendering time. My cache is big=20 enough to contains the full image, which is why I got no disk activity=20 and instantaneous zoom. > By the way, I've changed the tile dimension since the cursor was > not moving in a fluid way, loading 1MB from the memory map > for each tile takes too much time on my machine, I've set it down > to 128 Kb. How it feels now on yours? It feel great, but I didn't noticed a difference compared to 1 Mo tiles.=20 I guess that using a cache big enough to contains the whole image reduce=20 the effect of tile size at loading time... Martin. |