10K+ concurrent requests to a single server sounds like a server that is mostly shuffling bits around. I assume the 150 concurrent is more realistic for a frontend server which actually does something.
Also note the speaker is a CTO of a CDN (fast.ly), I am guessing he has experience with large concurrent requests as well :)
Also note the speaker is a CTO of a CDN (fast.ly), I am guessing he has experience with large concurrent requests as well :)