OP Here> The setup was as follows: VM instance in each of the 4 cloud regions around the world:
Council Bluffs, IA (us-central1)
Berkeley County, SC (us-east1)
St. Ghislain, Belgium (europe-west1)
Changhua County, Taiwan (asia-east1)
So on any cache miss at one of the 50+ edge POPs, the cloud HTTP(S) load balancer will direct the request to the nearest cloud region. The resulting cache fill happens over Google's global network, which is fast. Once that cache fill happens, that edge cache can serve the content directly to clients, which is even faster.
Council Bluffs, IA (us-central1) Berkeley County, SC (us-east1) St. Ghislain, Belgium (europe-west1) Changhua County, Taiwan (asia-east1)
So on any cache miss at one of the 50+ edge POPs, the cloud HTTP(S) load balancer will direct the request to the nearest cloud region. The resulting cache fill happens over Google's global network, which is fast. Once that cache fill happens, that edge cache can serve the content directly to clients, which is even faster.