No hard data on actual rates but you may find this interesting: http://lambda-the-ultimate.org/node/2108 http://lambda-the-ultimate.org/node/2108 You might fi

No hard data on actual rates but you may find this interesting: http://lambda-the-ultimate.org/node/2108 http://lambda-the-ultimate.org/node/2108 You might find upper bounds by talking to people who build space-hardened systems.