eclipse very slow to start a plugin install

Question

I use eclipse for my projects.

When I want to install or update a plugin, it is very very slow to calculate dependencies ( about 5 to 10 minutes) and then it is fast

Answer 1

Try to uncheck the option "Contract all update sites" before installing your selection. Because p2 would try to check the dependency from all the available update sites(download the metadata repository firstly) when checking that option.