We made another improvement to OpenSim to make worlds start faster. When a world starts, OpenSim begins loading its assets. Some assets, e.g. textures or scripts, may be used in many prims. When that happens, OpenSim requests the asset multiple times from the assets service. In normal use this isn’t a problem because the asset is in the local cache so these requests are instantaneous. However, when the world starts the asset isn’t in the cache yet, so OpenSim downloads it multiple times. This is wasteful and slows down the world startup.
To fix this, we modified OpenSim so that additional requests for an asset are delayed until the first request has finished. This means the additional requests will be fulfilled from the local cache, which is very fast.
