Slow Buckminster plugin resolution

I am running a headless Buckminster build using ant that for some reason is taking 4+ hours to finish resolving all the plugins that need to be built. There are about 350 plugins that need to be built, all of which are already on the local filesystem and are provided in a rmap file as "local" providers.

I have tried increasing the logging level to debug see what the build is busy doing for 4 hours but th开发者_如何学运维ere is only log statements for the first 30 seconds or so, then the logging stops and the cpu usage goes up to about 100% until the resolution finally finishes after about 4 hours.

Does anyone have any further debugging tips or possible solutions to this slow process?

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Trying to dump the thread stack to trace which component is working and cost much resource.

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Updating to the latest version of Buckminster resolved this. Some artifact resolution caching was added that greatly decreased the amount of time Buckminster spent resolving transitive dependencies.