The curve above shows that lock thrashing does happen in practice, and is not just a theoretical concept. The plot on the right is from a textbook that shows that this should happen, and on the left is a good example of lock thrashing when we get above 20 cores.
The curve above shows that lock thrashing does happen in practice, and is not just a theoretical concept. The plot on the right is from a textbook that shows that this should happen, and on the left is a good example of lock thrashing when we get above 20 cores.