GarbageCollect in JVM ^ .NET

Disclaimer -- I'm no developer of garbage collector and have no real insight. This is just a collection of hearsay online comments.

Diff: Large Object heap

Diff: config parameter? JVM has (far) more. One of the very few dotnet config param is gcConcurrent.
http://msdn.microsoft.com/en-us/library/at1stbec.aspx points out

By default, VM (i.e. the runtime) uses concurrent garbage collection, which is optimized for latency. If you set gcConcurrent to false, VM uses non-concurrent garbage collection, which is optimized for throughput.

See first paragraph of http://msdn.microsoft.com/en-us/library/at1stbec.aspx