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I have pretty large application of around 10+ projects in the workspace.
After I sync my app with svn, i try to refresh the projects in eclipse IDE.
The refresh and the build process is taking more than 30 mins
I wish I could keep and one of my several Eclipse workspaces down to only 10 projects or so.
It certainly doesn't take me that long to refresh, even after a crash. Except for the dreaded "snap" crash, where apparently it intends to take a week or more rebuilding. And for that I just delete the snapshot files.
You might want to check your machine's virtual memory usage. It's possible that you're thrashing on the paging device.
An IDE is no substitute for an Intelligent Developer.